NEET Biology Growth, Repair Regeneration Ageing And Death Multiple Choice Questions
Question 1. The convention of a specialized cell into an unspecialized embryonic type of evil is referred to as :
- Differentiation
- Dedifferentiation
- Transformation
- Convergence.
Answer: 2. Dedifferentiation
Question 2. Growth of a cell occurs during :
- M-phase
- interphase
- Both i and 2
- Replication.
Answer: 2. interphase
Question 3. Which one of the following can regenerate its limb if lasts by accident?
- Crab
- Adult frog
- Salamander
- Tadpole.
Answer: 3. Salamander
Question 4. Regeneration in which animal was discovered for the first time?
- Sycon
- Hydra
- Planaria
- Phererima.
Answer: 2. Hydra
NEET Biology Important MCQs
Question 5. Which one of the following organs has a high degree of power of regeneration?
- Lungs
- Kidney
- L4er
- Spinal cord.
Answer: 3.L4er
Question 6. Ageing is caused by the disappearance of :
- Thyroid
- Thymus
- Pituitary’
- Parathyroid.
Answer: 2. Thymus
Question 7. The number of renal glomeruli is reduced to about half in human beings:
- 50 Yrs. old
- 70 yrs. old
- 60 yrs. old
- 75 yrs. old.
Answer: 4. 75 yrs. old.
Question 8. Senescence means :
- The period of the life cycle when an animal takes its first breath
- The time of life cycle when an animal becomes sexually mature
- The process of growth of body size by mitotic division
- The process of growing old.
Answer: 4. The process of growing old.
Question 9. It has been observed among kidney donors that the only kidney in the body enlarges and performs the function of a lost kidney. This phenomenon is called :
- Senescence
- De-differentiation of kidney
- Blastema
- Compensatory’ hypertrophy.
Answer: 3. Compensatory’ hypertrophy.
Human Ageing NEET Questions
Question 10.Protein which plays a significant role in ageing is :
- Elastin
- Actin
- Myosin
- Collagen.
Answer: 4. Collagen.
Question 11. When the reserve food material is utilized in the body, the process is called :
- Anabolism
- Degrowth
- Ageing
- Growth.
Answer: 2. Degrowth
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Question 12. The branch of developmental biology which deals with the study of ageing is called :
- Ornithology
- ichthyology
- Gerontology
- Histology.
Answer: 3. Gerontology
Question 13. During differentiation, cells with the same DNA :
- Develop similarly
- D4ide at equal rates
- Contain different genes
- Transcribe different genes.
Answer: 4. Transcribe different genes.
Question 14. Capacity for regeneration is maximum in :
- Sponges
- Hydra
- Earthworm
- Tadpole.
Answer: 2. Hydra
NEET Previous Year Questions On Ageing
Question 15. The gland that shows atrophy and degenerates with the advancement of age and disappears by middle age is :
- Thyroid
- Pituitary
- Prostate
- Thymus.
Answer: 4. Thymus
Question 16. The life span of an organism depends on the rate of:
- Growth
- Regeneration
- Repair
- Ageing.
Answer: 4. Ageing.
Question 17. Growth of higher animal body takes place by the addition of:
- Protoplasmic substances
- Apoplasmatic substances
- Both 1 and 2
- None of the tires above.
Answer: 3. Both 1 and 2
Question 18. Which of the following shows autotomy?
- Starfish
- Prawn
- Wall lizard
- All of above
Answer: 4. All of the above
Question 19. A lost leg cannot be regenerated by :
- Salamander
- Tadpole larva
- Crab
- Adult frog.
Answer: 4. Adult frog.
Question 20. When the whole body is formed from a body segment, it is called :
- Morphallaxis
- Epimorphosis
- Parthenogenesis
- Epigenesis.
Answer:1. Morphallaxis
NEET Previous Year Questions On Ageing
Question 21. The Father of gerontology is :
- Korenchevsky
- Hayflick
- Trembley
- Sachs.
Answer: 1. Korenchevsky
Question 22. A bud-like structure formed at the end of the cut limb of a salamander is:
- Blastula
- Blastema
- Blastumela
- Plasma.
Answer: 2. Blastema
Ageing Process NEET Important Questions
Question 23. Parafunctional development occurs in :
- Embryo
- Foetus
- infant
- Adult.
Answer: 1. Embryo
Question 24. Reserve cells in the human body occur in the:
- Germinal epithelium
- Bone marrow
- Stratum germinat4um
- All the above.
Answer: 4. All the above.