MCQs on Regeneration For NEET 2020

A biological process wherein some entities replace and restore an amputated or lost body part is regeneration. From bacteria to humans, every species is capable of undergoing regeneration. This process can be complete or incomplete recovery of the lost/amputated tissue.

1. What is the basic principle of regeneration?

(a) two stage turbine used

(b) steam after coming out of turbine is circulated to boiler

(c) steam after coming out of condenser is circulated to boiler

(d) steam after coming out of condenser is circulated to turbine

Answer: (d)

2. Mean temperature of heat addition is ___________ due to regeneration

(a) not affected

(b) increases

(c) decreases

(d) varied exponentially

Answer: (b)

3. Ideal regenerative rankine cycle

(a) efficiency is unaffected

(b) efficiency is increased

(c) work output is increased

(d) heat supplied is increased

Answer: (b)

4. The following organs can be regenerated in echinodermata

(a) digestive system

(b) arms and disc

(c) pedicellariae

(d) eyes

Answer: (b)

5. The damaged leg is not regenerated in

(a) frog

(b) frog’s tadpole

(c) salamander

(d) crab

Answer: (a)

6. The repair by cell division in the damaged tissue is

(a) Exponential growth

(b) morphallaxis regeneration

(c) epimorphosis regeneration

(d) deaccelerating growth

Answer: (c)

7. Restorative regeneration is

(a) healing of wounds

(b) formation of a new entity from a piece of body of parent

(c) a regular process in which the dead and worn out cells of some organs are

continuously replaced by new cells

(d) all of these

Answer: (c)

8. Ability to give rise to a new individual entity from body parts is

(a) Reproduction

(b) Fragmentation

(c) Regeneration

(d) Fission

Answer: (c)

9. Regeneration of a limb or tail is an example of

(a) Epimorphosis

(b) Autotomy

(c) Compensatory hypertrophy

(d) Morphallaxis

Answer: (a)

10. Epimorphosis is regeneration through

(a) repatterning of existing cells as seen in hydra

(b) reinitiation of division in existing cells, followed by patterning, as occurs in

amphibians such as newts

(c) repatterning of existing cells as seen in amphibians

(d) reinitiation of embryonic growth from remaining cells as seen in Hydra

Answer: (b)

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