Question

Fig. 2.11 A part of human diges
3. Can we survive only on raw, leafy vegetables/grass? Discuss.
xtended Learning - Activities and Project
1. Visit a doctor and find out:
(i) Under what conditions does a patient need to be on a dri
glucose?
fü) Till when does a patient need to be given glucose?
(iii) How does glucose help the patient recover?
Write the answers in your notebook.
2. Find out what vitamins are and get the following information.
(i) Why are vitamins necessary in the diet?​

Answer 1

Answer:

No. Humans cannot survive only on raw, leafy vegetables, or grass. It is because the grass is rich in cellulose, which is a type of carbohydrate that humans are not able to digest due to the absence of cellulose-digesting enzymes.

Recall the concept of digestion in ruminants