Question

1. Write down the function of Stomach.

2. Distinguish between Aerobic Respiration and Anaerobic Respiration.

3. Difference between Autotrophic Nutrition and Heterophic Nutrition.

4. Draw a diagram to show the human alimentary canal and label it. Name the longest part of

the alimentary canal.

5. What is emulsification?

Answer 1

here is answer for 5 dear

Answer 2

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1) The churning action of the stomach muscles physically breaks down the food. The stomach releases acids and enzymes for the chemical breakdown of food. The enzyme pepsin is responsible for protein breakdown. The stomach releases food into the small intestine in a controlled and regulated manner.

2)AEROBIC RESPIRATION ANAEROBIC RESPIRATION
Aerobic respiration is the respiration which takes place in the presence of oxygen. Anaerobic respiration is the respiration which takes place in the absence of oxygen.
END PRODUCTS
The end products of aerobic respiration are carbon dioxide and water. The end products of anaerobic respiration are carbon dioxide and ethanol or lactic acid.
FUNCTION
Aerobic respiration is the process by which your brain receives energy. Your brain and heart need aerobic respiration to keep you alive. Anaerobic respiration helps in fermentation of yeast to produce ethyl alcohol or ethanol in beverage industry.
STAGES
Aerobic respiration is carried on in two stages call glycolysis and Krebs cycle. Anaerobic respiration is also carried on in two stages called glycolysis and fermentation.
ENERGY
The amount of energy released in aerobic respiration is very high. The amount of energy released in the anaerobic respiration is low.
SEEN IN
Aerobic respiration is mainly seen in multi cellular organisms such as animals, plants, humans, etc. Anaerobic respiration is mainly seen in unicellular organisms like bacteria, fungi, protozoa, etc.
OTHERS
Aerobic respiration which is carried out in the lungs of humans, animals is called as pulmonary respiration. Anaerobic respiration uses bacteria such as lactobacillus to convert pyruvic acid into lactic acid. this bacteria commonly used for making curd or yogurt.

3)Autotrophic nutrition :
1.Organism prepares its own food.
2.It is independent for its food requirements.
3.eg :green plants
Heterotrophic nutrition :
1.Organism does not prepare its own food.
2.It depends on plants for food requirements
3.eg :animals,human beings etc.

4)"Small intestine" is the longest part of alimentary canal.

5)It is the process of breaking down of large lipid droplets into small droplets. This provides a larger surface area on which enzyme pancreatic lipase can act to digest the fats into fatty acids and glycerol which are easily absorbed through small intestines. Bile salts are extremely important for emulsification of fats.

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