Nokea
Amylase in saliva initiates digestion of:
- A. lipids
- B. proteins
- C. fats
- D. carbohydrates
Correct Answer: D
Rationale: Salivary amylase breaks down carbohydrates into simpler sugars.
You may also like to solve these questions
Enzyme pepsin acts upon food at a pH of about-
- A. 1.8 to split proteins
- B. 2 to split carbohydrate
- C. 7 to change protein into peptones
- D. 2 to change protein in amino acids
Correct Answer: A
Rationale: Pepsin works at a pH of about 1.8 to break down proteins into peptides.
Match: Duodenum
- A. initial section of the small intestine where most chemical digestion occurs
- B. stores bile
- C. secretes insulin
- D. absorbs water
Correct Answer: A
Rationale: The duodenum is the first part of the small intestine where most chemical digestion takes place.
Which of the following statements are true about the Pancreatic juice?
- A. Pancreatic juice is acidic.
- B. Pancreatic juice is alkaline.
- C. Pancreatic juice is neutral.
- D. All of the above.
Correct Answer: B
Rationale: Pancreatic juice is alkaline due to its bicarbonate content, which neutralizes the acidic chyme entering the duodenum.
The end product of digestion of starch which is absorbed into the bloodstream is:
- A. amino acid
- B. fatty acid
- C. glucose
- D. sucrose
Correct Answer: C
Rationale: Starch is broken down into glucose by enzymes like amylase and maltase, which is then absorbed into the bloodstream.
Gastric lipase is secreted by -
- A. Stomach
- B. Pancreas
- C. Liver
- D. Ileum
Correct Answer: A
Rationale: Gastric lipase is secreted by the stomach to initiate fat digestion.