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Nutrition Knowledge-Based Practice

Biology · Human Body & Physiology · Biology · Digestion & Excretion

5 Biology practice questions on Nutrition. Questions that assess core concepts and understanding.

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Questions

  1. 1.

    Which of the following dietary minerals is an essential component of the heme group within hemoglobin and myoglobin, enabling systemic oxygen transport in the human body?

    • A) Iron
    • B) Zinc
    • C) Magnesium
    • D) Calcium
  2. 2.

    Which of the following water-soluble vitamins functions as an essential cofactor for the enzymatic hydroxylation of collagen fibers, with its severe dietary deficiency leading to scurvy?

    • A) Vitamin B1 (thiamine)
    • B) Vitamin B3 (niacin)
    • C) Vitamin C (ascorbic acid)
    • D) Vitamin B12 (cobalamin)
  3. 3.

    Which of the following vitamins is synthesized by symbiotic bacteria residing in the human large intestine and serves as an essential cofactor for the hepatic synthesis of blood-clotting factors?

    • A) Vitamin C
    • B) Vitamin D
    • C) Vitamin B1
    • D) Vitamin K
  4. 4.

    Which of the following dietary nutrients cannot be synthesized endogenously by the human body and must be ingested to sustain cellular protein synthesis and maintain positive nitrogen balance?

    • A) Glucose
    • B) Saturated fatty acids
    • C) Glycogen
    • D) Essential amino acids
  5. 5.

    Which of the following dietary components passes through the human alimentary canal largely unhydrolyzed by endogenous enzymes, functioning primarily to add bulk to digestive contents and stimulate peristalsis?

    • A) Amylopectin
    • B) Triglycerides
    • C) Polypeptides
    • D) Dietary cellulose

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