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Solved Examples: Digestion & Absorption (Old NCERT) - NEET PDF Download

Q.1. Anxiety and eating spicy food together in an otherwise normal human, may lead to     [CBSE PMT’2012 S]
(a) Indigestion
(b) Jaundice
(c) Diarrhoea
(d) Vomiting
Ans:
a
Solution:

Anxiety and eating spicy food together in an otherwise normal human, may lead to difficulty in digestion, i.e., indigestion.

Q.2. Cirrhosis of liver is caused by the chronic intake of     [CBSE PMT’2012 S]
(a) Opium
(b) Alcohol
(c) Tobacco (chewing)
(d) Cocaine
Ans: 
b
Solution:

Long term intake of alcohol causes damage to liver which is known as Cirrhosis of liver. This is due to destruction of hepatocytes and fibroblasts.

Q.3. When breast feeding is replaced by less nutritive food low in proteins and calories; the infants below the age of one year are likely to suffer from     [CBSE PMT’2009]
(a) Rickets
(b) Kwashiorkar
(c) Pellagra
(d) Marasmus
Ans: 
d
Solution:

If breast feeding is replaced by less nutritive food low in proteins and calories; the infants below the age of one year are likely to suffer from marasmus. Marasmus is a form of malnutrition that occur when there is no enough protein in diet.

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FAQs on Solved Examples: Digestion & Absorption (Old NCERT) - NEET

1. What is digestion and absorption?
Ans. Digestion is the process by which food is broken down into smaller molecules that can be absorbed by the body. Absorption, on the other hand, is the process by which these smaller molecules are taken up by the cells of the body and transported to various organs for utilization.
2. How does the digestive system work?
Ans. The digestive system consists of various organs that work together to break down food and absorb its nutrients. It starts with the mouth, where food is chewed and mixed with saliva. Then, it travels down the esophagus into the stomach, where it is further broken down by stomach acids. The partially digested food then enters the small intestine, where it is further broken down by enzymes and absorbed into the bloodstream. The remaining waste is passed into the large intestine and eventually eliminated from the body.
3. What are the main organs involved in digestion and absorption?
Ans. The main organs involved in digestion and absorption are the mouth, esophagus, stomach, small intestine, large intestine, liver, and pancreas. Each organ plays a specific role in the digestion and absorption process.
4. How are nutrients absorbed by the body?
Ans. Nutrients are absorbed by the body through the walls of the small intestine. The inner lining of the small intestine is covered in tiny finger-like projections called villi, which increase the surface area for absorption. These villi are lined with even smaller projections called microvilli, which further increase the surface area. Nutrients are absorbed into the bloodstream through the walls of the villi and are then transported to various organs for utilization.
5. What are some common digestive disorders?
Ans. Some common digestive disorders include gastroesophageal reflux disease (GERD), irritable bowel syndrome (IBS), Crohn's disease, ulcerative colitis, and celiac disease. These disorders can cause symptoms such as abdominal pain, diarrhea, constipation, bloating, and heartburn. Treatment for these disorders varies depending on the specific condition and may include medication, dietary changes, and lifestyle modifications.
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