Nokea
Which of the following digestive enzymes is NOT found in intestinal juice?
- A. erepsin
- B. trypsin
- C. amylase
- D. maltase
Correct Answer: B
Rationale: Trypsin is produced by the pancreas and secreted into the duodenum, not found in intestinal juice, which contains enzymes like erepsin and maltase.
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Function of HCl in stomach is to-
- A. Kill micro-organism of food
- B. Facilitate absorption of food
- C. Dissolve hormones secreted by gastric glands
- D. Active trypsinogen to trypsin
Correct Answer: A
Rationale: HCl kills microorganisms in food, aiding in sterilization.
Which part of our body secrets pepsin?
- A. Liver
- B. Pancreas
- C. Thyroid gland
- D. Stomach
Correct Answer: D
Rationale: Gastric chief cells present in our stomach secrete pepsin. It is responsible for the digestion of proteins. The stomach is responsible for the digestion of food. It secretes HCl (Hydrochloric acid) to aid digestion.
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.
The kidneys, skin, and lungs are each a part of the system.
- A. integumentary
- B. respiratory
- C. excretory
- D. digestive
Correct Answer: C
Rationale: The kidneys, skin, and lungs are all part of the excretory system, removing various wastes.
Where is water mainly absorbed in the alimentary canal?
- A. Small intestine
- B. Stomach
- C. Large intestine
- D. Esophagus
Correct Answer: C
Rationale: The large intestine absorbs most of the remaining water from digested material, forming semi-solid feces.