Biology MCQs

1. In which organ RBC are selectively destroyed/ recycled by macrophages?
[A] Spleen
[B] Kidney
[C] Liver
[D] Pancreas

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2. Kwashiorkor disease is caused by the deficiency of which of the following ?
[A] Vitamins
[B] Proteins
[C] Fats
[D] Minerals

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3. Which among the following is true regarding fraternal twins?
[A] They may look similar but are not genetically identical
[B] They are exactly similar but are not genetically identical
[C] They are exactly similar and are genetically identical
[D] None of the above

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4. What is the correct name of premature death of cells and living tissue?
[A] Neutrophilia
[B] Necrosis
[C] Neoplasia
[D] Nephrosis

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5. What fraction of Body’s calcium is stored in Bones and teeth?
[A] 85%
[B] 90%
[C] 94%
[D] 99%

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6. For respiration in deep sea, divers use mixture of:
[A] Oxygen and helium
[B] Oxygen and hydrogen
[C] Oxygen and carbon dioxide
[D] Oxygen, Helium & nitrogen

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7. Fruits ripen faster when kept in a / an __:
[A] rice container
[B] wheat container
[C] open container
[D] refrigerator

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8. Which of the following organisms is not a mollusc?
[A] Octopus
[B] Snail
[C] Oyster
[D] Starfish

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9. In human body, the largest amount of the carbon dioxide produced by body cells is carried to the lungs as__:
[A] CO2 attached to haemoglobin in the red blood cells
[B] The bicarbonate ion attached to haemoglobin
[C] CO2 gas in solution in the plasma
[D] Bicarbonate ion dissolved in the plasma

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10. Which hormones does pancreas secret?
[A] Testosterone
[B] Progesterone
[C] Prolactin
[D] Glucagon and insulin

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