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Human Physiology: Digestion, Respiration & Circulation
NEET Biology • 10 questions • Free on ExamBattle
Practice Questions
Q1
The enzyme that begins starch digestion in the mouth is:
- A. Pepsin
- B. Amylase
- C. Lipase
- D. Trypsin
Q2
The functional unit of the kidney is the:
- A. Nephron
- B. Glomerulus
- C. Ureter
- D. Collecting duct
Q3
The normal adult resting heart rate is:
- A. 40–60 bpm
- B. 72–80 bpm
- C. 100–120 bpm
- D. 50–60 bpm
Q4
Bile salts secreted by the liver help in:
- A. Protein digestion
- B. Starch digestion
- C. Emulsification of fats
- D. Absorption of vitamins B and C
Q5
The primary gas exchanged in the lungs is:
- A. CO₂ in, O₂ out
- B. O₂ in, CO₂ out
- C. N₂ in, O₂ out
- D. O₂ in, N₂ out
Q6
The hormone responsible for regulating blood glucose levels by promoting glycogen synthesis is:
- A. Glucagon
- B. Insulin
- C. Cortisol
- D. Adrenaline
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