Biology
Assertion (A): Cellulose and glycogen are polysaccharides which provide roughage for proper functioning of the gut.
Reason (R): None of the polysaccharides can be converted into simpler carbohydrates like glucose, etc. So, these polysaccharides remain as such in the gut and help in digestion.
- A is True and R is False.
- A is False and R is True.
- Both A and R are True.
- Both A and R are False.
Answer
Both A and R are False.
Reason — Cellulose is a polysaccharide that acts as roughage because humans lack the enzyme cellulase to digest it but glycogen is not roughage, it is a storage form of glucose in animals and is digestible by humans.
Many polysaccharides, like starch and glycogen, can be digested into simpler sugars like glucose. Only cellulose remains undigested in the human gut and contributes to roughage.
Related Questions
The disease caused due to the deficiency of Thiamine is:
- Osteomalacia
- Beri beri
- Rickets
- Dermatitis
Identify the mineral nutrients P and Q based on their roles in the human body.
Mineral nutrient Role in human body P Production of chemical energy (ATP) Q Process of blood clotting - P — Calcium, Q — Phosphorus
- P — Phosphorus, Q — Iodine
- P — Phosphorus, Q — Calcium
- P — Iodine, Q — Calcium
Assertion (A): The deficiency of iodine leads to goitre.
Reason (R): Iodine is required for the proper growth and development of the thyroid gland.
- A is True and R is False.
- A is False and R is True.
- Both A and R are True.
- Both A and R are False.
Assertion (A): Haemoglobin is a respiratory pigment consisting of iodine and albumin protein.
Reason (R): The deficiency of iodine causes anaemia because it is required for the formation of haemoglobin.
- A is True and R is False.
- A is False and R is True.
- Both A and R are True.
- Both A and R are False.