Biology MCQ’s

Biology MCQ’s

1.The cutaneous plexus and the papillary plexus consist of
A. Specialized cells for cutaneous sensations.
B. A network of nerves to provide dermal sensation.
C. Both A and B
D. None of these

Answer - Click Here:
B

2. Why is iron uptake called active?
A. Ions move freely
B. Energy is expended
C. Ions are active
D. B and C

Answer - Click Here:
B

3. The Plants obtain their nitrogen from the soil in the …… form?
A. Nitric acid
B. Free nitrogen gas
C. Nitrates
D. Nitrogen oxide

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C

4. Which one is a synthetic auxin?
A. IAA
B. NAB

C. IBA
D. GA

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C

5. The transpiration is regulated by the movements of …
A. Subsidiary cells of the leaves
B. Mesophyll tissue cells
C. Guard cells of the stomata
D. Epidermal cells of the leaves

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C

6. Hybridomas are the fusion product of …
A. abnormal antibody-producing cell with the myeloma
B. normal antibody-producing cell with the myeloma
C. sex cells with myeloma
D. All of the above

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B

7. Transport of food in plants occurs through…..
A. Sieve elements
B. Tracheids
C. Transfusion tissue
D. B and C

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A

8. Which Ig is produced in primary immune response?
A. IgG
B. IgE
C. IgM
D. IgA

Answer - Click Here:
C

9. The antibody-dependent cytotoxicity is seen in…..
A. Non-compatible blood transfusion
B. Local anaphylaxis
C. Generalized anaphylaxis
D. Immune complex reaction

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A

10. Guard cells are helpful in…
A. Guttation
B. Protection against grazing
C. Fighting against infection
D. Transpiration

Answer - Click Here:
D