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Give me short notes about the following topic structure of heart, differences between pulmonary vein and artery, laboratory thermometer and clinical thermometer, application of heat, fertilization in flowers, seed dispersal, digestion in human being and grass eating animals, type of respiration and definition, neutralization- application, difference between chemical change and physical change types of chemical change and physical change. for my exam preparation?
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Give me short notes about the following topic structure of heart, diff...
Structure of Heart
The heart is a muscular organ divided into four chambers:
- Right Atrium: Receives deoxygenated blood from the body.
- Right Ventricle: Pumps deoxygenated blood to the lungs.
- Left Atrium: Receives oxygenated blood from the lungs.
- Left Ventricle: Pumps oxygenated blood to the body.
The heart has valves that prevent backflow of blood.
Differences Between Pulmonary Vein and Artery
- Pulmonary Vein:
- Carries oxygenated blood from the lungs to the heart.
- Has thin walls due to low pressure.
- Pulmonary Artery:
- Carries deoxygenated blood from the heart to the lungs.
- Has thick elastic walls to withstand high pressure.
Laboratory Thermometer vs Clinical Thermometer
- Laboratory Thermometer:
- Measures a wide range of temperatures.
- Not suitable for human body temperature.
- Clinical Thermometer:
- Measures human body temperature (35-42°C).
- Has a constriction to hold the mercury reading.
Application of Heat
Heat is used in:
- Cooking food.
- Sterilizing medical equipment.
- Industrial processes like metalworking.
Fertilization in Flowers
Fertilization occurs when pollen grains from the male part (anther) transfer to the female part (stigma), leading to the fusion of male and female gametes, forming seeds.
Seed Dispersal
Seeds are dispersed to reduce competition and colonize new areas. Methods include:
- Wind: Seeds are lightweight (dandelion).
- Water: Seeds float (coconut).
- Animals: Seeds are eaten and excreted (berries).
Digestion in Human Beings and Grass-Eating Animals
- Human Digestion: Involves mechanical and chemical processes starting in the mouth and ending in the intestines.
- Grass-Eating Animals: Have specialized stomachs (e.g., ruminants) for breaking down cellulose through fermentation.
Types of Respiration
- Aerobic Respiration: Requires oxygen, produces more energy.
- Anaerobic Respiration: Occurs without oxygen, produces less energy.
Neutralization - Application
Neutralization is used in:
- Treating acid burns with bases.
- Antacids to relieve heartburn.
- Soil treatment to balance pH.
Difference Between Chemical Change and Physical Change
- Chemical Change: Involves a transformation into new substances (e.g., burning wood).
- Physical Change: Changes in form or appearance, but not composition (e.g., melting ice).
Types of Chemical and Physical Changes
- Chemical Changes:
- Combustion, oxidation, fermentation.
- Physical Changes:
- Melting, freezing, dissolving.
The heart is a muscular organ divided into four chambers:
- Right Atrium: Receives deoxygenated blood from the body.
- Right Ventricle: Pumps deoxygenated blood to the lungs.
- Left Atrium: Receives oxygenated blood from the lungs.
- Left Ventricle: Pumps oxygenated blood to the body.
The heart has valves that prevent backflow of blood.
Differences Between Pulmonary Vein and Artery
- Pulmonary Vein:
- Carries oxygenated blood from the lungs to the heart.
- Has thin walls due to low pressure.
- Pulmonary Artery:
- Carries deoxygenated blood from the heart to the lungs.
- Has thick elastic walls to withstand high pressure.
Laboratory Thermometer vs Clinical Thermometer
- Laboratory Thermometer:
- Measures a wide range of temperatures.
- Not suitable for human body temperature.
- Clinical Thermometer:
- Measures human body temperature (35-42°C).
- Has a constriction to hold the mercury reading.
Application of Heat
Heat is used in:
- Cooking food.
- Sterilizing medical equipment.
- Industrial processes like metalworking.
Fertilization in Flowers
Fertilization occurs when pollen grains from the male part (anther) transfer to the female part (stigma), leading to the fusion of male and female gametes, forming seeds.
Seed Dispersal
Seeds are dispersed to reduce competition and colonize new areas. Methods include:
- Wind: Seeds are lightweight (dandelion).
- Water: Seeds float (coconut).
- Animals: Seeds are eaten and excreted (berries).
Digestion in Human Beings and Grass-Eating Animals
- Human Digestion: Involves mechanical and chemical processes starting in the mouth and ending in the intestines.
- Grass-Eating Animals: Have specialized stomachs (e.g., ruminants) for breaking down cellulose through fermentation.
Types of Respiration
- Aerobic Respiration: Requires oxygen, produces more energy.
- Anaerobic Respiration: Occurs without oxygen, produces less energy.
Neutralization - Application
Neutralization is used in:
- Treating acid burns with bases.
- Antacids to relieve heartburn.
- Soil treatment to balance pH.
Difference Between Chemical Change and Physical Change
- Chemical Change: Involves a transformation into new substances (e.g., burning wood).
- Physical Change: Changes in form or appearance, but not composition (e.g., melting ice).
Types of Chemical and Physical Changes
- Chemical Changes:
- Combustion, oxidation, fermentation.
- Physical Changes:
- Melting, freezing, dissolving.
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Give me short notes about the following topic structure of heart, differences between pulmonary vein and artery, laboratory thermometer and clinical thermometer, application of heat, fertilization in flowers, seed dispersal, digestion in human being and grass eating animals, type of respiration and definition, neutralization- application, difference between chemical change and physical change types of chemical change and physical change. for my exam preparation?
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Give me short notes about the following topic structure of heart, differences between pulmonary vein and artery, laboratory thermometer and clinical thermometer, application of heat, fertilization in flowers, seed dispersal, digestion in human being and grass eating animals, type of respiration and definition, neutralization- application, difference between chemical change and physical change types of chemical change and physical change. for my exam preparation? for Class 7 2024 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about Give me short notes about the following topic structure of heart, differences between pulmonary vein and artery, laboratory thermometer and clinical thermometer, application of heat, fertilization in flowers, seed dispersal, digestion in human being and grass eating animals, type of respiration and definition, neutralization- application, difference between chemical change and physical change types of chemical change and physical change. for my exam preparation? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Give me short notes about the following topic structure of heart, differences between pulmonary vein and artery, laboratory thermometer and clinical thermometer, application of heat, fertilization in flowers, seed dispersal, digestion in human being and grass eating animals, type of respiration and definition, neutralization- application, difference between chemical change and physical change types of chemical change and physical change. for my exam preparation?.
Give me short notes about the following topic structure of heart, differences between pulmonary vein and artery, laboratory thermometer and clinical thermometer, application of heat, fertilization in flowers, seed dispersal, digestion in human being and grass eating animals, type of respiration and definition, neutralization- application, difference between chemical change and physical change types of chemical change and physical change. for my exam preparation? for Class 7 2024 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about Give me short notes about the following topic structure of heart, differences between pulmonary vein and artery, laboratory thermometer and clinical thermometer, application of heat, fertilization in flowers, seed dispersal, digestion in human being and grass eating animals, type of respiration and definition, neutralization- application, difference between chemical change and physical change types of chemical change and physical change. for my exam preparation? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Give me short notes about the following topic structure of heart, differences between pulmonary vein and artery, laboratory thermometer and clinical thermometer, application of heat, fertilization in flowers, seed dispersal, digestion in human being and grass eating animals, type of respiration and definition, neutralization- application, difference between chemical change and physical change types of chemical change and physical change. for my exam preparation?.
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Give me short notes about the following topic structure of heart, differences between pulmonary vein and artery, laboratory thermometer and clinical thermometer, application of heat, fertilization in flowers, seed dispersal, digestion in human being and grass eating animals, type of respiration and definition, neutralization- application, difference between chemical change and physical change types of chemical change and physical change. for my exam preparation?, a detailed solution for Give me short notes about the following topic structure of heart, differences between pulmonary vein and artery, laboratory thermometer and clinical thermometer, application of heat, fertilization in flowers, seed dispersal, digestion in human being and grass eating animals, type of respiration and definition, neutralization- application, difference between chemical change and physical change types of chemical change and physical change. for my exam preparation? has been provided alongside types of Give me short notes about the following topic structure of heart, differences between pulmonary vein and artery, laboratory thermometer and clinical thermometer, application of heat, fertilization in flowers, seed dispersal, digestion in human being and grass eating animals, type of respiration and definition, neutralization- application, difference between chemical change and physical change types of chemical change and physical change. for my exam preparation? theory, EduRev gives you an
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