Biology MCQs

1. Actinomycetes are good source of which of the following ?
[A] Vitamins
[B] Antihistamines
[C] Antibiotics
[D] Antibodies

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2. Where does the formation of Urea takes place in our body ?
[A] Pancreas
[B] Kidney
[C] Liver
[D] Lungs

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3. Which among the following controls the protein synthesis and heredity ?
[A] Amino acids
[B] Genes
[C] DNA
[D] RNA

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4. Which among the following is essential for both activation and action of thrombin ?
[A] Na+
[B] Cl-
[C] Ca2+
[D] Mg2+

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5. In humans, fertilization normally occurs in __?
[A] Ovary
[B] Fallopian Tube
[C] Uterus
[D] Placenta

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6. Which of the following diseases is spread by mosquitoes but is not a viral disease?
[A] Meningitis
[B] Dengue fever
[C] Yellow fever
[D] Filariasis

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7. Which of the following taxonomic level is same for man, monkey and tiger?
[A] Genus
[B] Family
[C] Order
[D] Class

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8. Xylem helps in transportation of which of the following?
[A] Food
[B] Water
[C] Both food and water
[D] Nutrients

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9. Which of the following functions is performed by the kidneys in the human body?
[A] Transportation
[B] Excretion
[C] Respiration
[D] Digestion

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10. Which of the following is the result of the decrease in white blood cells?
[A] Decrease in Antibodies
[B] Increase in Antigens
[C] Increase in Antibodies
[D] No change

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