Question

Answer the following questions.
1. What is nutrition?
2. Define nutrients. In how many groups can
nutrients be divided? Name them.
3. Differentiate between autotrophs and
heterotrophs.
4. What are heterotrophs - consumers or producers?
5. What are saprophytes? How do saprophytes
differ from parasites?
6. Classify the following organisms into saprophytes
and parasites:
Cuscuta, Bacteria, Fungi, Yeast, Plasmodium,
Mushrooms
7. Name the raw materials essential for photosynthesis.
What is the site for photosynthesis?
8. Why is photosynthesis necessary for our
survival?
9. What is the role of gastric hydrochloric acid?
10. What is the function of pyloric sphincter?
11. Why the length of the small intestine in herbivores
is longer than that in carnivores?
12. Name the three different parts of small intestine.
13. Name the three different parts of large intestine.
14. What is the function of colon?
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Answer 1

1. Nutrition is the act of providing nutrients to the body cells of living organisms so that they can carry out activities to keep themselves alive
2. Components of food that are chemical substances and provide nourishment to the body are called nutrients the mode of nutrition of the living organisms can be classified into following types autotrophic nutrition and heterotropic nutrition
3. Autotrophic nutrition is the mode of nutrition in which green plants prepare their own food are call the green plants are autotrophic , Heterotropic nutrition is the mode of nutrition in which all non-green plants and animals draw their food from different sources
4. Sorry I forgot
5. I don’t know