Nokea
The food mixes thoroughly with acidic gastric juice of the by the churning movement-
- A. Rectum
- B. Duodenum
- C. Stomach
- D. Oesophagus
Correct Answer: C
Rationale: The stomach churns food with gastric juice to form chyme.
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Amylase breaks down what macromolecule?
- A. Protein
- B. Fat
- C. DNA
- D. Starch
Correct Answer: D
Rationale: Amylase breaks down starch into simpler sugars like maltose.
Which of the following absorbed in proximal intestine?
- A. Iron
- B. Sodium
- C. Bile salts
- D. Vitamin B12
Correct Answer: A
Rationale: Iron is absorbed in the proximal small intestine (duodenum and jejunum).
C-shaped widest part of intestine
- A. Pancreas
- B. Liver
- C. Duodenum
- D. Thyroid
Correct Answer: C
Rationale: The duodenum is the C-shaped, widest part of the small intestine.
Emulsification of fats by bile takes place in-
- A. Duodenum
- B. Liver
- C. Stomach
- D. Intestine
Correct Answer: A
Rationale: Bile emulsifies fats in the duodenum, the first part of the small intestine.
Match: Canines
- A. teeth used to grind meat
- B. teeth for tearing food
- C. teeth for crushing
- D. teeth for cutting
Correct Answer: B
Rationale: Canines are pointed teeth designed for tearing food, especially meat.