Notes are being written
The board questions below are real and complete — they come from the CBSE papers themselves. The written notes for this topic are still being prepared.
Board questions on this topic
5 from the CBSE papers we hold — the exact wording the board used.
2026MCQ·1 mark·Q1
Observe the given figure and select the statement that correctly states how these fungi obtain nutrition.

- (a) By eating the bread on which it is growing.
- (b) By using nutrients from the bread to prepare their own food.
- (c) By breaking down the nutrients of bread outside the body and then absorbing them.
- (d) By allowing other organisms to grow on the bread and then consuming them.
2025MCQ·1 mark·Q8
Secretion of less saliva in mouth will effect the conversion of :
- (a) proteins into amino acids
- (b) fats into fatty acids and glycerol
- (c) starch into simple sugars
- (d) sugars into alcohol
2024Very short answer·2 marks·Q22
State one role of each of the following in human digestive system: (i) Hydrochloric acid (ii) Villi (iii) Anal Sphincter (iv) Lipase
2023MCQ·1 mark·Q8
An organism which breaks down the food material outside the body and then absorbs it is
- (a) a plant parasite, Cuscuta
- (b) an animal parasite, Tapeworm
- (c) a bacteria, Rhizobium
- (d) a fungi, Rhizopus
2023MCQ·1 mark·Q9
Consider the following statements about small intestine and select the one which is NOT correct:
- (a) The length of the small intestine in animals differs as it depends on the type of food they eat.
- (b) The small intestine is the site of complete digestion of food.
- (c) The small intestine receives secretions from liver and pancreas.
- (d) The villi of the small intestine absorb water from the unabsorbed food before it gets removed from the body via the anus.