Nokea
Chymotrypsin is-
- A. Proteolytic enzyme
- B. Fat digestive enzyme
- C. Vitamin
- D. Hormone
Correct Answer: A
Rationale: Chymotrypsin is a proteolytic enzyme secreted by the pancreas.
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Starch is digested to maltose by the enzyme amylase. According to the 'lock and key' hypothesis, which is the 'key' and which is the 'lock'?
- A. key: amylase, lock: starch
- B. key: starch, lock: amylase
- C. key: maltose, lock: amylase
- D. key: amylase, lock: maltose
Correct Answer: A
Rationale: In the lock and key model, the enzyme (amylase) is the key that specifically binds to the substrate (starch), acting as the lock.
Hyperthermic means:
- A. Too cold
- B. Normal
- C. Too hot
- D. Stable
Correct Answer: C
Rationale: Hyperthermic refers to an abnormally high body temperature.
A patient presents with persistent bloating, gas, and diarrhea after consuming dairy products. Which of the following is the most likely cause of these symptoms?
- A. Impaired carbohydrate digestion
- B. Impaired protein digestion
- C. Impaired fat digestion
- D. Impaired lactose digestion
Correct Answer: D
Rationale: Lactose intolerance, due to lactase deficiency, leads to impaired lactose digestion, causing bloating, gas, and diarrhea after dairy consumption.
The hardest constituent of the tooth is-
- A. Enamel
- B. Dentine
- C. Bone
- D. Pulp
Correct Answer: A
Rationale: Enamel is the hardest substance in the human body, protecting the tooth's inner layers.
The part of the stomach that meets the esophagus at the gastroesophageal sphincter is the:
- A. fundus
- B. cardia
- C. pylorus
- D. body
Correct Answer: B
Rationale: The cardia is the part of the stomach closest to the esophagus.