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Human Physiology: Digestion, Respiration & Circulation

NEET Biology • 10 questions • Free on ExamBattle

Practice Questions

  1. Q1

    The enzyme that begins starch digestion in the mouth is:

    • A. Pepsin
    • B. Amylase
    • C. Lipase
    • D. Trypsin
  2. Q2

    The functional unit of the kidney is the:

    • A. Nephron
    • B. Glomerulus
    • C. Ureter
    • D. Collecting duct
  3. Q3

    The normal adult resting heart rate is:

    • A. 40–60 bpm
    • B. 72–80 bpm
    • C. 100–120 bpm
    • D. 50–60 bpm
  4. 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
  5. 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
  6. 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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