HIGHER ORDER THINKING SKILLS (HOTS) QUESTIONS
1.We cannot digest cellulose while cows and buffalocs can. Explain.
2. Canines are not well developed in human beings, why?
3.Stomach wall is thick and wall of intestine is thin, why?
4.Small intestine is very long while other organs of alimentary canal are not. Explain why
Answers
Answer:humans cannot digest cellulose, as it is a polymer and humans cannot digest it as they don't have long small intestine as ruminants.
They also have a caecum in their stomach to digest the food.
2.canines are used for tearing flesh .they are not developed in humans as humans donot have to eat flesh .
3.walls of stomach is thick as HCl., A strong acid is produced in stomach.in order to prevent damage to others, it has thin linning of mucus.
On the other hands wall of small intestine is thin for absorption
Explanation:
Answer: 1. It is true that we cannot digest cellulose while cows and buffaloes can.
Explanation: Due to presence of bacteria in the caecum of cud chewing animals they can digest cellulose but we cannot digest cellulose due to the absence of bacteria in our body.