explain the process of digestion in humans Related: Human Digestive System?
Related: Human Digestive System
Class 10 Question
49 Answers
Raiyan Zaib
answered
Feb 15, 2020
Digestive Processes. The processes of digestion include six activities: ingestion, propulsion, mechanical or physical digestion, chemical digestion, absorption, and defecation. The first of these processes, ingestion, refers to the entry of food into the alimentary canal through the mouth.
There are four steps in the digestion process: ingestion, the mechanical and chemical breakdown of food, nutrient absorption, and elimination of indigestible food. The mechanical breakdown of food occurs via muscular contractions called peristalsis and segmentation.
Digestion begins in the mouth, well before food reaches the stomach. When we see, smell, taste, or even imagine a tasty meal, our salivary glands in front of the ear, under the tongue, and near the lower jaw begin making saliva (spit).
There are four steps in the digestion process: ingestion, the mechanical and chemical breakdown of food, nutrient absorption, and elimination of indigestible food. The mechanical breakdown of food occurs via muscular contractions called peristalsis and segmentation.
Digestion begins in the mouth, well before food reaches the stomach. When we see, smell, taste, or even imagine a tasty meal, our salivary glands in front of the ear, under the tongue, and near the lower jaw begin making saliva (spit).
Smriti Tripathi
answered
Jun 02, 2020
The human digestive system consists of the gastrointestinal tract plus the accessory organs of digestion (the tongue, salivary glands, pancreas, liver, and gallbladder). In this system, the process of digestion has many stages, the first of which starts in the mouth (oral cavity). Digestion involves the breakdown of food into smaller and smaller components, until they can be absorbed and assimilated into the body. The secretion of saliva helps to produce a bolus which can be swallowed to pass down the oesophagus and into the stomach.
Saliva also contains a catalytic enzyme called amylase which starts to act on food in the mouth. Another digestive enzyme called lingual lipase is secreted by some of the lingual papillae on the tongue and also from serous glands in the main salivary glands. Digestion is helped by the mastication of food by the teeth and also by the muscular actions of peristalsis and segmentation contractions. Gastric juice in the stomach is essential for the continuation of digestion as is the production of mucus in the stomach.
Peristalsis is the rhythmic contraction of muscles that begins in the oesophagus and continues along the wall of the stomach and the rest of the gastrointestinal tract. This initially results in the production of chyme which when fully broken down in the small intestine is absorbed as chyle into the lymphatic system. Most of the digestion of food takes place in the small intestine. Water and some minerals are reabsorbed back into the blood in the colon of the large intestine. The waste products of digestion (faeces) are defecated from the anus via the rectum.
Shubham Kumar King
answered
Feb 15, 2020
Digestion involves the breakdown of food into smaller and smaller components, until they can be absorbed and assimilated into the body. The process of digestion has three stages. ... Saliva contains digestive enzymes called amylase, and lingual lipase, secreted by the salivary glands and serous glands on the tongue.
Black Lover
answered
Mar 28, 2020
The digestive system is made up of the gastrointestinal tract—also called the GI tract or digestive tract—and the liver, pancreas, and gallbladder. The GI tract is a series of hollow organs joined in a long, twisting tube from the mouth to the anus. The hollow organs that make up the GI tract are the mouth, esophagus, stomach, small intestine, large intestine, and anus. The liver, pancreas, and gallbladder are the solid organs of the digestive system.
The small intestine has three parts. The first part is called the duodenum. The jejunum is in the middle and the ileum is at the end. The large intestine includes the appendix, cecum, colon, and rectum. The appendix is a finger-shaped pouch attached to the cecum. The cecum is the first part of the large intestine. The colon is next. The rectum is the end of the large intestine
The small intestine has three parts. The first part is called the duodenum. The jejunum is in the middle and the ileum is at the end. The large intestine includes the appendix, cecum, colon, and rectum. The appendix is a finger-shaped pouch attached to the cecum. The cecum is the first part of the large intestine. The colon is next. The rectum is the end of the large intestine
Jithesh Joseph
answered
Mar 26, 2020
We will eat the food it goes through a process it will get mixed with saliva and it passes through food pipe and it reaches stomach it will release enzymes and the undigested materials will go to small intestine and there intestine will absorb salt and passes through large intestine and to anus and it goes out
This the digestion so easy
Peace out $
This the digestion so easy
Peace out $
Ruhama Tayyab
answered
Jun 02, 2020
Dear Student,
Complex components of food such as carbohydrates are broken down into simpler substances and are then utilized by the body. This process of breaking down of complex substances into simpler substances is known as digestion.
The human digestive system consists of a number of organs, each performing a different function.
In the digestive system, food first enters the buccal cavity. The buccal cavity consists of teeth and the tongue. Apart from the tongue and the teeth, the buccal cavity also has salivary glands, which secrete saliva. The enzymes present in saliva breakdown the fats or digest the starch present in the food we eat. The swallowed food passes into the oesophagus from the mouth. The oesophagus or the food pipe runs along the neck and chest. The walls of the food pipe move to push the food down into the stomach. After the food pipe, the food enters the stomach. The stomach is a thin-walled bag. It is flattened, U-shaped, and is the widest part of the alimentary canal. It opens into the small intestine. The inner lining of the stomach secretes hydrochloric acid, mucous, and digestive juices. The mucus secreted by the stomach protects the inner lining of the stomach. The hydrochloric acid secreted by the stomach kills the bacteria that enter the stomach through food. It also makes the medium of the stomach acidic. The digestive juices secreted by the stomach take part in the process of digestion by breaking down the food into smaller substances. The stomach empties its contents into the small intestine. The small intestine is a highly coiled, tube-like structure. It is about 7.5 metres in length. It receives secretions from the liver and the pancreas in the form of bile and pancreatic juice. Apart from this, the wall of the small intestine also secretes juices. When the partly digested food reaches the small intestine, the juices secreted by the small intestine complete the process of digestion.
Nutrients from the digested food pass into blood vessels, which are present in the walls of the small intestine. This process is known as absorption. From the small intestine, the food is passed on to the large intestine where the water and remaining salts gets absorbed. The remaining waste material then enters the rectum. It is stored there in the form of semi-solid faeces. The faecal material is finally removed from the body through the anus. This process is known as egestion.
Hope this helps,
Cheers!!
Complex components of food such as carbohydrates are broken down into simpler substances and are then utilized by the body. This process of breaking down of complex substances into simpler substances is known as digestion.
The human digestive system consists of a number of organs, each performing a different function.
In the digestive system, food first enters the buccal cavity. The buccal cavity consists of teeth and the tongue. Apart from the tongue and the teeth, the buccal cavity also has salivary glands, which secrete saliva. The enzymes present in saliva breakdown the fats or digest the starch present in the food we eat. The swallowed food passes into the oesophagus from the mouth. The oesophagus or the food pipe runs along the neck and chest. The walls of the food pipe move to push the food down into the stomach. After the food pipe, the food enters the stomach. The stomach is a thin-walled bag. It is flattened, U-shaped, and is the widest part of the alimentary canal. It opens into the small intestine. The inner lining of the stomach secretes hydrochloric acid, mucous, and digestive juices. The mucus secreted by the stomach protects the inner lining of the stomach. The hydrochloric acid secreted by the stomach kills the bacteria that enter the stomach through food. It also makes the medium of the stomach acidic. The digestive juices secreted by the stomach take part in the process of digestion by breaking down the food into smaller substances. The stomach empties its contents into the small intestine. The small intestine is a highly coiled, tube-like structure. It is about 7.5 metres in length. It receives secretions from the liver and the pancreas in the form of bile and pancreatic juice. Apart from this, the wall of the small intestine also secretes juices. When the partly digested food reaches the small intestine, the juices secreted by the small intestine complete the process of digestion.
Nutrients from the digested food pass into blood vessels, which are present in the walls of the small intestine. This process is known as absorption. From the small intestine, the food is passed on to the large intestine where the water and remaining salts gets absorbed. The remaining waste material then enters the rectum. It is stored there in the form of semi-solid faeces. The faecal material is finally removed from the body through the anus. This process is known as egestion.
Hope this helps,
Cheers!!
Amod Maxwell
answered
Apr 25, 2020
Human digestive system is a unique and well well organized place for digestion of food
First food is taken inside the mouth . Our teeth inside the mouth grind the food with the help of saliva and thus help in physical digestive of food Now food goes through the alimentary canal to the stomach. It's a place where food stays for a long period of time. There, many gastric juices are released by the stomach wall in order to make food alkaline . After that Enzymes from pancreas and gall bladder released to act upon the food .
First food is taken inside the mouth . Our teeth inside the mouth grind the food with the help of saliva and thus help in physical digestive of food Now food goes through the alimentary canal to the stomach. It's a place where food stays for a long period of time. There, many gastric juices are released by the stomach wall in order to make food alkaline . After that Enzymes from pancreas and gall bladder released to act upon the food .
Sundar Lal
answered
May 10, 2020
The process of digestion is known as alimentary canal. There are five steps to be follows - ingestion, digestion, absorption, assimilation and egestion. The intake of food and chewing on come to salivary glands to produce saliva to mix up is called bolus. When the food inside get to pharlyx, still the food to pass through oesophagus and it pateltic movement (when the food to broke down in big size to pass through the food pipe) the food inside the stomach.It is in the presence in acid- HCl, pepsin and mucus. HCL work as break down to food as acid, pepsin made up of amino acids and mucus to protect as inner lining of the stomach. Liver produce to the bile juice, bile salts and gall bladder to store bile juice.Pancreatic enzymes like trypsin and lipase. Trypsin Break to protein and lipase break to fatty acid and glycerol. After, the food inside of small intestine. Small intestine like projection figure called villi. Villi work to nutrients absorption to do and blood vessels through oxygen transport into the body. Large intestine work as outside of the waste products and anus excess the excretion.
Priya Natarajan
answered
Apr 14, 2020
Nothing to worry
first we take food through our mouth ,our mouth grind the food into semi solid paste thus the digestion in humans starts from our mouth.in mouth a secretion salivary amylase digest the food in mouth,then the food enters into large intestine through oseophagus bg peristaltic movement.(process known as peristalsis).in our li(large intestine)the protiens will be digested.
their are three secretion in large intestine.
1. hcl
2.enzyme pepsin
3. mucus
hcl secret the acid ,which make the pepsin to act on food .mucus protects the innerling of li from the erosion of acid. thus the enzyme pepsin will act only in the presence of hcl.therefore their r two role of hcl in the large intestine
1. to stimulate pepsin to act on food to digest protien 2. to kill germs in the coming food
first we take food through our mouth ,our mouth grind the food into semi solid paste thus the digestion in humans starts from our mouth.in mouth a secretion salivary amylase digest the food in mouth,then the food enters into large intestine through oseophagus bg peristaltic movement.(process known as peristalsis).in our li(large intestine)the protiens will be digested.
their are three secretion in large intestine.
1. hcl
2.enzyme pepsin
3. mucus
hcl secret the acid ,which make the pepsin to act on food .mucus protects the innerling of li from the erosion of acid. thus the enzyme pepsin will act only in the presence of hcl.therefore their r two role of hcl in the large intestine
1. to stimulate pepsin to act on food to digest protien 2. to kill germs in the coming food
Suhasini Sharma
answered
Apr 16, 2020
Digestive Processes. The processes of digestion include six activities: ingestion, propulsion, mechanical or physical digestion, chemical digestion, absorption, and defecation. The first of these processes, ingestion, refers to the entry of food into the alimentary canal through the mouth.
Amirthini Ramesh
answered
Apr 25, 2020
- Humans have holozoic nutrition, that means the food is consumed as a whole and the digestion occurs internally. It can be described as:
1. Ingestion of food- The food is taken in the oral cavity in the process called the ingestion. The teeth help in grinding of the food, salivary amylase helps in partial breakdown of the starch and the tongue helps in mixing the food with saliva and helps in swallowing it. The food is now called bolus.
2. Digestion- The process of break-down of complex substances into simpler substances is called digestion and it starts with the mouth where physical break-down occurs along with some chemical digestion. The bolus is swallowed in and it arrives in stomach where the digestion of proteins occurs due to presence of the enzyme pepsin. Bolus is now called the chyme. This chyme now moves into the small intestine where rest of the process of digestion will be completed. The pancreatic juice, the intestinal juice and the bile will result in breakdown of carbohydrates, fats and the rest of the proteins. The chyme is now called the chyle and it moves to the large intestine where the water is absorbed.
3. Absorption- The digested food is absorbed via the finger-like projections present on the inner surface of the small-intestine and the reach the blood stream.
4. Assimilation- The absorbed food is then used by different tissues for the energy generation. The excess food is stored as glycogen in the liver and s fats in adipose tissue.
5. Excretion- The undigested material passes from the small-intestine to the rectum of the large-intestine, from where it is removed from the body through anus.
Satish Thorat
answered
Apr 22, 2020
The human digestive systemconsists of the gastrointestinal tract plus the accessory organs ofdigestion (the tongue, salivary glands, pancreas, liver, andgallbladder). Digestion involves the breakdown of food into smaller and smaller components, until they can be absorbed andassimilated into the body.
Pubg Gaming
answered
May 17, 2020
Digestions starts with mouth.there r enzymes like salivary amylase .it act on food and breaks into small pieces.
through oesophagus it passes to stomach
HCl ,pancreatic juice and bile acts on food .
finally complete digestion occurs in small intestine
all nutrients absorbed thereand rest passes to large intestine .
through oesophagus it passes to stomach
HCl ,pancreatic juice and bile acts on food .
finally complete digestion occurs in small intestine
all nutrients absorbed thereand rest passes to large intestine .
Abhishek Sharma
answered
1 week ago
This question has been answered by more than 50 guys here , don't u see all the answers and 1000 of upvotes of the guys and girls who answered
Kavithadevi Burra
answered
Mar 27, 2020
Abhushek Kumar can u send a pic of respiration as u sent for digestion plss
Diana Nair
answered
May 17, 2020
Digestion in human body starts from the mouth.In mouth we have 4 types of teeth are there
•Incisors
•Canines
•Premolars
•Molar.
These teeth helps in cutting, grinding, crushing and tearing of food in mouth.We also has tongue which has several taste buds like sour, bitter, salt and sweet. Tongue helps in swallowing of food into the food pipe
In mouth we have salivary gland which secretes saliva.This saliva contain salivary amlayze which broke down the starch present in the food into simpler forms.Then this food is swallowed into the food pipe or oesophagus
through pharynx which is a common passageway for food and air.In oesophagus the food goes to the stomach through peristalsis movement(which is a wave like movement).Then food enters the stomach where the food is mixed with Hydrochloric acid and pepsin which will broken down the proteins in the food.Also Hydrochloric acid helps in killing of germs in the food and also it helps in activating the inactive pepsin into activated form.In stomach food is called as chyme.The stomach is protected by the mucous lining or else the hydrochloric acid makes holes on the stomach.Then food goes to the small intestine and enters in its first part known as duodenum where it receives the secretion from liver and the pancreas. Liver gave its bile juice which is stored in the gallbladder bladder and pancreas gave the pancreatic juice.The bile juice digest the fats present in the food and pancreas break down the fats, proteins, and the carbohydrates.Fats is broken down into glycerol and fatty acids.Proteins is broken down into amino acids and carbohydrates is broken down into glucose by trypsin,lipase and sucrose.The bile also helps in neutralizing the Hydrochloric acid present in the food.The stomach has small finger like projection called as villi which increase the surface area and also it is surrounded by blood capillaries which helps in the food absorption the important things present in the food will taken by this villi and given back to the blood capillaries which is then taken to all parts of the body.Then the food enters to the large intestine where large intestine all the extra water and minerals from the food and then it goes to rectum where it turns into foeases and removed out of the body through anus and this process is called as excretion.
•Incisors
•Canines
•Premolars
•Molar.
These teeth helps in cutting, grinding, crushing and tearing of food in mouth.We also has tongue which has several taste buds like sour, bitter, salt and sweet. Tongue helps in swallowing of food into the food pipe
In mouth we have salivary gland which secretes saliva.This saliva contain salivary amlayze which broke down the starch present in the food into simpler forms.Then this food is swallowed into the food pipe or oesophagus
through pharynx which is a common passageway for food and air.In oesophagus the food goes to the stomach through peristalsis movement(which is a wave like movement).Then food enters the stomach where the food is mixed with Hydrochloric acid and pepsin which will broken down the proteins in the food.Also Hydrochloric acid helps in killing of germs in the food and also it helps in activating the inactive pepsin into activated form.In stomach food is called as chyme.The stomach is protected by the mucous lining or else the hydrochloric acid makes holes on the stomach.Then food goes to the small intestine and enters in its first part known as duodenum where it receives the secretion from liver and the pancreas. Liver gave its bile juice which is stored in the gallbladder bladder and pancreas gave the pancreatic juice.The bile juice digest the fats present in the food and pancreas break down the fats, proteins, and the carbohydrates.Fats is broken down into glycerol and fatty acids.Proteins is broken down into amino acids and carbohydrates is broken down into glucose by trypsin,lipase and sucrose.The bile also helps in neutralizing the Hydrochloric acid present in the food.The stomach has small finger like projection called as villi which increase the surface area and also it is surrounded by blood capillaries which helps in the food absorption the important things present in the food will taken by this villi and given back to the blood capillaries which is then taken to all parts of the body.Then the food enters to the large intestine where large intestine all the extra water and minerals from the food and then it goes to rectum where it turns into foeases and removed out of the body through anus and this process is called as excretion.
Harjinder Singh
answered
Jun 03, 2020
1st food reaches our mouth where saliva is mixed with with it. Tounge expresses the taste of food . Canion break the food. Molars and premolars chew food.
Digestion of carbohydrates almost ends here.
2nd Food enters food pipe. Here it travels in form of ball.
3rd It reaches stomach,where HCL acid is released which activates pepsinozen and tripsinozen to form pepsin and trypsin. These enzymes break proteins into amino acids.
4th Stomach has special covering which protects it from reaction with HCL acid.
5th After the conversion of food from solid to liquid,food reaches deudenom where pancreatic juice from pancreas and others salts and bile juice from gall bladder , liver are released for digestion purposes.
6th Food enters small intestine, in villi, finger like projections, it passes slowly.
7th It enters large intestine and absorbs extra water and coverts it from liquid to solid state.
8th Waste material is excreted.
Digestion of carbohydrates almost ends here.
2nd Food enters food pipe. Here it travels in form of ball.
3rd It reaches stomach,where HCL acid is released which activates pepsinozen and tripsinozen to form pepsin and trypsin. These enzymes break proteins into amino acids.
4th Stomach has special covering which protects it from reaction with HCL acid.
5th After the conversion of food from solid to liquid,food reaches deudenom where pancreatic juice from pancreas and others salts and bile juice from gall bladder , liver are released for digestion purposes.
6th Food enters small intestine, in villi, finger like projections, it passes slowly.
7th It enters large intestine and absorbs extra water and coverts it from liquid to solid state.
8th Waste material is excreted.
Charles Neban
answered
May 29, 2020
The human digestive system consists of the gastrointestinal tract plus the accessory organs of digestion (the tongue, salivary glands, pancreas, liver, and gallbladder). Digestion involves the breakdown of food into smaller and smaller components, until they can be absorbed and assimilated into the body.
Mir Ahrar Mir
answered
May 22, 2020
The digestive system in human consists of an alimentary canal and associated digestive glands. The human alimentary canal (aliment : nourish) is a continuous muscular digestive tube that runs through the body.It digests the food,breaks it down into smaller substances ,and absorbs the digested food.The alimentary canal has the following parts such as mouth ,pharynx,esophagus,stomach,small intestine and large intestine that help in digestion of food.
Mohit Saini
answered
May 22, 2020
The digestive system converts the foods we eat into their simplest form like gulcose (sugar) , aminoacid (that makes up fats). The broken down food is then abosorbed into the blood stream from the intestine and the nutrients are carried to cell in the body
Tanishka Gupta
answered
Jun 04, 2020
- Humans have holozoic nutrition, that means the food is consumed as a whole and the digestion occurs internally. It can be described as:
1. Ingestion of food- The food is taken in the oral cavity in the process called the ingestion. The teeth help in grinding of the food, salivary amylase helps in partial breakdown of the starch and the tongue helps in mixing the food with saliva and helps in swallowing it. The food is now called bolus.
2. Digestion- The process of break-down of complex substances into simpler substances is called digestion and it starts with the mouth where physical break-down occurs along with some chemical digestion. The bolus is swallowed in and it arrives in stomach where the digestion of proteins occurs due to presence of the enzyme pepsin. Bolus is now called the chyme. This chyme now moves into the small intestine where rest of the process of digestion will be completed. The pancreatic juice, the intestinal juice and the bile will result in breakdown of carbohydrates, fats and the rest of the proteins. The chyme is now called the chyle and it moves to the large intestine where the water is absorbed.
3. Absorption- The digested food is absorbed via the finger-like projections present on the inner surface of the small-intestine and the reach the blood stream.
4. Assimilation- The absorbed food is then used by different tissues for the energy generation. The excess food is stored as glycogen in the liver and s fats in adipose tissue.
5. Excretion- The undigested material passes from the small-intestine to the rectum of the large-intestine, from where it is removed from the body through anus.
hope it helpful for u..
Saniya Roy
answered
2 weeks ago
Step by step
step:1 food enter through mouth into oesophogus
with the help of salivary gland it secrets amylase which help in digestion of food
srep:2 By passing in oesophogus it enter in stomach by paristatic movement
Step:3 food remain in stomach for about 3 day's then it passed into duedenuem in the form of chym
Step:4 In duedenuem bile juice and bicarbonate ions from liver help in imulsification of fats
Step:5 Bicarbonate provide basicity or nuetrol to the
concentration of liver
Step:6 The food passes from jejjnuem to ileum in it intestine juice is secreted that complete the digestion that convert food into soluble form amino acid fatty acid and glucose
Step:7 In iluem small finger like structure called villi are present that increase surface. area of absorption
absorbed food passesd into body through out blood diffuse d into body cell
Step:8 In body cell energy is produced from absorbed food
Step:9 The undigested food passes through large intestine $ water absorption take place . this undigested food from caccum passes to colon $ then to rectum where it from faces and then is egested through anus
complete answer
step:1 food enter through mouth into oesophogus
with the help of salivary gland it secrets amylase which help in digestion of food
srep:2 By passing in oesophogus it enter in stomach by paristatic movement
Step:3 food remain in stomach for about 3 day's then it passed into duedenuem in the form of chym
Step:4 In duedenuem bile juice and bicarbonate ions from liver help in imulsification of fats
Step:5 Bicarbonate provide basicity or nuetrol to the
concentration of liver
Step:6 The food passes from jejjnuem to ileum in it intestine juice is secreted that complete the digestion that convert food into soluble form amino acid fatty acid and glucose
Step:7 In iluem small finger like structure called villi are present that increase surface. area of absorption
absorbed food passesd into body through out blood diffuse d into body cell
Step:8 In body cell energy is produced from absorbed food
Step:9 The undigested food passes through large intestine $ water absorption take place . this undigested food from caccum passes to colon $ then to rectum where it from faces and then is egested through anus
complete answer
Ashutosh Narayan
answered
3 weeks ago
BRITANNICA
HOMEHEALTH & MEDICINEANATOMY & PHYSIOLOGY
Human digestive system
WRITTEN BY:
William Sircus
Harvey J. Dworken
Nicholas Carr Hightower
William T. Keeton
See Article History
ARTICLE CONTENTS
Human digestive system, the system used in the human body for the process of digestion. The human digestive system consists primarily of the digestive tract, or the series of structures and organs through which food and liquids pass during their processing into forms absorbable into the bloodstream. The system also consists of the structures through which wastes pass in the process of elimination and other organs that contribute juices necessary for the digestive process.
HOMEHEALTH & MEDICINEANATOMY & PHYSIOLOGY
Human digestive system
WRITTEN BY:
William Sircus
Harvey J. Dworken
Nicholas Carr Hightower
William T. Keeton
See Article History
ARTICLE CONTENTS
Human digestive system, the system used in the human body for the process of digestion. The human digestive system consists primarily of the digestive tract, or the series of structures and organs through which food and liquids pass during their processing into forms absorbable into the bloodstream. The system also consists of the structures through which wastes pass in the process of elimination and other organs that contribute juices necessary for the digestive process.
Badal Mishra
answered
Jun 05, 2020
The human digestive system is a series of organs that converts food into essential nutrients that are absorbed into the body. The digestive organs also move waste material out of the body. The enzymes in saliva help break down foods, and the lubrication function of saliva makes it easier for food to be swallowed.
Sejal Thakur
answered
3 weeks ago
- Humans have holozoic nutrition, that means the food is consumed as a whole and the digestion occurs internally. It can be described as:
1. Ingestion of food- The food is taken in the oral cavity in the process called the ingestion. The teeth help in grinding of the food, salivary amylase helps in partial breakdown of the starch and the tongue helps in mixing the food with saliva and helps in swallowing it. The food is now called bolus.
2. Digestion- The process of break-down of complex substances into simpler substances is called digestion and it starts with the mouth where physical break-down occurs along with some chemical digestion. The bolus is swallowed in and it arrives in stomach where the digestion of proteins occurs due to presence of the enzyme pepsin. Bolus is now called the chyme. This chyme now moves into the small intestine where rest of the process of digestion will be completed. The pancreatic juice, the intestinal juice and the bile will result in breakdown of carbohydrates, fats and the rest of the proteins. The chyme is now called the chyle and it moves to the large intestine where the water is absorbed.
3. Absorption- The digested food is absorbed via the finger-like projections present on the inner surface of the small-intestine and then reaches the blood stream.
4. Assimilation- The absorbed food is then used by different tissues for the energy generation. The excess food is stored as glycogen in the liver and as fats in adipose tissue.
5. Excretion- The undigested material passes from the small-intestine to the rectum of the large-intestine, from where it is removed from the body through anus.
Sanya Chugh
answered
13 hours ago
Humans have holozoic nutrition, that means the food is consumed as a whole and the digestion occurs internally. It can be described as:
1. Ingestion of food- The food is taken in the oral cavity in the process called the ingestion. The teeth help in grinding of the food, salivary amylase helps in partial breakdown of the starch and the tongue helps in mixing the food with saliva and helps in swallowing it. The food is now called bolus.
2. Digestion- The process of break-down of complex substances into simpler substances is called digestion and it starts with the mouth where physical break-down occurs along with some chemical digestion. The bolus is swallowed in and it arrives in stomach where the digestion of proteins occurs due to presence of the enzyme pepsin. Bolus is now called the chyme. This chyme now moves into the small intestine where rest of the process of digestion will be completed. The pancreatic juice, the intestinal juice and the bile will result in breakdown of carbohydrates, fats and the rest of the proteins. The chyme is now called the chyle and it moves to the large intestine where the water is absorbed.
3. Absorption- The digested food is absorbed via the finger-like projections present on the inner surface of the small-intestine and the reach the blood stream.
4. Assimilation- The absorbed food is then used by different tissues for the energy generation. The excess food is stored as glycogen in the liver and s fats in adipose tissue.
5. Excretion- The undigested material passes from the small-intestine to the rectum of the large-intestine, from where it is removed from the body through anus.
hope it helps....
1. Ingestion of food- The food is taken in the oral cavity in the process called the ingestion. The teeth help in grinding of the food, salivary amylase helps in partial breakdown of the starch and the tongue helps in mixing the food with saliva and helps in swallowing it. The food is now called bolus.
2. Digestion- The process of break-down of complex substances into simpler substances is called digestion and it starts with the mouth where physical break-down occurs along with some chemical digestion. The bolus is swallowed in and it arrives in stomach where the digestion of proteins occurs due to presence of the enzyme pepsin. Bolus is now called the chyme. This chyme now moves into the small intestine where rest of the process of digestion will be completed. The pancreatic juice, the intestinal juice and the bile will result in breakdown of carbohydrates, fats and the rest of the proteins. The chyme is now called the chyle and it moves to the large intestine where the water is absorbed.
3. Absorption- The digested food is absorbed via the finger-like projections present on the inner surface of the small-intestine and the reach the blood stream.
4. Assimilation- The absorbed food is then used by different tissues for the energy generation. The excess food is stored as glycogen in the liver and s fats in adipose tissue.
5. Excretion- The undigested material passes from the small-intestine to the rectum of the large-intestine, from where it is removed from the body through anus.
hope it helps....
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