Home
Class 12
BIOLOGY
Assertion: The quiescent centre acts as ...

Assertion: The quiescent centre acts as a reservoir of relatively resistant cells, which constitute a permanent source of active initials.
Reason: The cells of the inactive region of quiescent centre become active, when the previous active initials get damaged.

A

If both Assertion and Reason are true and Reason is the correct explanation of Assertion.

B

If both Assertion and Reason are true, but Reason is not the correct explanation of the Assertion.

C

If Assertion is true, but Reason is false.

D

Both Assertion and Reason are false

Text Solution

Verified by Experts

The correct Answer is:
A
Quiescent centre is found in the centre of the root apex. Cell divisions are very few in the quiescent centre. Quiescent centre may function as reserve meristem.
Promotional Banner

Topper's Solved these Questions

  • ANATOMY OF FLOWERING PLANTS

    ARIHANT NEET|Exercise Chapter exercises ( Medical entrances special format questions Assertion and reason)|8 Videos

  • ADOLESCENCE AND DRUG/ALCOHOL ABUSE

    ARIHANT NEET|Exercise MEDICAL ENTRANCES GALLARY (COLLECTION OF QUESTIONS ASKED IN NEET & VORIOUS MEDICAL ENTRANCE EXAMS)|23 Videos

  • ANIMAL HUSBANDRY

    ARIHANT NEET|Exercise CHAPTER EXERCISES (Medical entrances gallery) Collection of questions asked in NEET & Various Entrance Exams|18 Videos

Similar Questions

Explore conceptually related problems

Assertion The quiescentcentre actsas a reservoir of relatively resistant cells, which constitute a permanent source of active initials. Reason The cells of the inactive region of quiescent centre become active,when the previous active initials get damaged.

In quiescent centre cells are active.

Assertion : Quiescent centre is found in the centre of the root apex. Reason : It consists of actively dividing cells .

Assertion : Permanent tissue is composed of mature cells. Reason : Meristematic tissue is a group of actively dividing cells.

Assertion Permanent tissue is composed of mature cells. Reason Meristematic tissue is a group of actively dividing cells.

Assertion :- In prokaryotes, control of the rate of transcriptional initiation is the predominant site for control of gene expression. Reason : The regulatory protein can act both positively (activators) & negatively (repressors)

Assertion : When plant cells are placed in highly concentrated sugar or salt solution, they get plasmolysed. Reason : Highly concentrated sugar or salt acts as hypotonic solution which leads to exosmosis.

The active molecule that helps to initiate inflammatory response when mast cell degranulate is: