What is the correct order of the processes that take place in the alimentary canal?
A) absorption, digestion, ingestion, egestion
B) digestion, ingestion, egestion, absorption
C) egestion, digestion, absorption, ingestion
D) ingestion, digestion, absorption, egestion
▶️ Answer/Explanation
Ans: D
The correct sequence of processes in the alimentary canal is:
- Ingestion: Taking in food through the mouth.
- Digestion: Breaking down food into simpler substances (mechanical and chemical).
- Absorption: Nutrients passing into the bloodstream (mainly in the small intestine).
- Egestion: Removal of undigested waste as feces.
Only option D matches this sequence, making it the correct answer.
The diagram shows part of the alimentary canal and associated organs.
Which labelled part stores bile?
▶️ Answer/Explanation
Ans: C
The gall bladder (C) stores and concentrates bile, a digestive fluid produced by the liver (D). When needed, bile is released into the small intestine to emulsify fats.
Why not others?
– A (Stomach): Digests food but does not handle bile.
– B (Pancreas): Produces enzymes, not bile.
– D (Liver): Produces bile but does not store it.
Thus, the correct answer is C (Gall bladder).