Question

Assertion: Intercalary meristem increases the length of plant-like apical meristems
Reason: An intercalary meristem originates from the apical meristems.
A. Both Assertion and reason are correct and Reason is the correct explanation for assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
C. Assertion is correct but the reason is incorrect
D. Assertion is incorrect but the reason is correct.

Answer 1

Hint: The meristem is a sort of tissue observed in flora. It includes undifferentiated cells (meristematic cells) able to undergo continuous division. Cells within the meristem can develop into all the different tissues and organs that occur in plant life. These cells continue to divide until a time after they get differentiated and then lose the ability to divide.

Complete answer: Intercalary meristem is a type of meristematic tissue related to the growth in length inside the middle function, for that reason the call. It is made of meristematic cells that divide mitotically within the stem at the bottom of nodes and leaf blades. The increase at this factor is referred to as intercalary growth. This sort of meristem takes place simplest in monocots, especially grass. This is crucial to those plant agencies because it serves as an adaptive mechanism towards herbivory. Through the intercalary boom, these vegetation are capable of swiftly regrow leaves and elongate stems to atone for plant components grazed by using herbivores. If the top of the plant is eliminated then the intercalary meristem form new cells and will increase plant boom. Intercalary meristem divides and provides an increase inside the duration of the internode. When root or shoot grows in duration some apical meristem leaves some meristematic cells at the back or at the node. Such meristems are referred to as intercalary meristems. They possess the identical capacity as apical meristems. Therefore, both declaration and causes are correct.
Thus, the correct option is (A) Both Assertion and Reason are correct and Reason is the correct explanation for the assertion.

Note: In leaf regrowth in grasses advanced in reaction to harm by using grazing herbivores. Apical meristems are the completely undifferentiated (indeterminate) meristems in a plant. In that sense, the meristematic cells are often in comparison to the stem cells in animals, which have similar conduct and feature.