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

Hy,
1. Stomach secrets gastric juices which makes the food acidic. HCl is the acid in stomach which makes the food acidic. And then any microorganism present is killed by acid. Also, food is digested by the help of acids.
2. Aerobic respiration utilises oxygen and glycogen is converted into glucose.
Anaerobic respiration takes place in absence of oxygen. Here, end product is lactic acid.
3. Autotrophic nutrition - the term says itself, auto means self, the organisms who can make their food themselves. Example - plants.
Heterotrophs- individuals who are dependent on others for their nutrition. Eg- Humans/Animals.
4. Longest part of digestive system is small intestine.
5. Emulsification is breaking down of fat by liver.
Hope it helps.
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Dr Chinmay
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