Assertion :The quiescent centre acts as a reservior of cells which constitute a permanent source of active initials. Reason: Cells of inactive region or quiescent centre become active when the previously active initials get damaged.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Assertion is correct but Reason is incorrect

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Both Assertion and Reason are incorrect

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
The root apical meristem is found as the tip of the main root and it has a biconvex quiescent centre and serves as the reserve meristem. It is apparent in the action for growing roots but disappears during the dormant phase. Meristematic tissues have compactly arranged thin-walled cells with dense cytoplasm and large nucleus that produce new cells, they have high DNA, RNA and protein content. Shoot apex has an apical bud that is involved in active growth.

Thus, the correct answer is option A.

Suggest Corrections

Similar questions

Q. Assertion :The quiescent centre acts as a reservoir of cells which constitute a permanent source of active initials. Reason: Cells of inactive region of quiescent centre become active when the previously active initials get damaged.

Q. Assertion
If BOD level of water in reservoir is less than 5 ppm it is not polluted.

Reason
High biological oxygen demand means low activity of bacteria in water.

Assertion (A) The enthalpy of reaction remains constant in the presence of a catalyst.

Reason (R) A catalyst participating in the reaction forms different activated complex and lowers down the activation energy but the difference in enrgy of reactant and product remains the same.

(a) Both assertion and reason are correct and the reason is correct explanation of assertion
(b) Both assertion and reason are correct, but reason does not explain assertion.
(c) Assertion is correct, but reason is incorrect
(d) Both assertion and reason are incorrect
(e) Assertion is incorrect but reason is correct.

Q. Assertion: The compressibility factor for

H_{2}

and

H e

(1 + \frac{P b}{R T})

Reason: The compressibility factor for

H_{2}

and

H e

can be derived from Van der Waal's equation.

Assertion – The non-fusible impurities present in iron ore are removed by $C a C O_{3}$ .

Reason: $C a C O_{3}$ which decomposes into $C a O$ and $C O_{2}$ . The $C a O$ formed reacts with $S i O_{2}$ to remove silica

Join BYJU'S Learning Program