Question

assertion-apical meristem is present at the growing tips of the stem and the root.
reason-The girth of the stem increases due to lateral meristem
plz answer​

Answer 1

Answer:

Lateral meristems occur on the sides and take part in increasing girth (or diameter) of the stem of the plant. Only one type of primary lateral meristem is found in plants i.e. intrafascicular cambium.

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Answer 2

Explanation:

1) An apical meristem can be defined as a meristem present at the shoot tip or root tip of a plant where a plant hormone called auxin is released.

It causes the elongation or increase in the length of shoot or root.

This type of growth is called primary growth.

2) Intercalary meristem is the meristems present at the base of the internodes or at the base of nodes of stem or leaf.

It helps in the elongation and growth of the plants at the nodes and internodes (stems and leaves) which enables longitudinal growth of the stem and leaves (grasses).

3) The lateral meristems can be defined as the meristems present on the lateral side of the central longitudinal axis of the stem and the root of a plant.

It helps to increase the thickness of the plants.

This type of growth is called secondary growth.

Maize is a monocot and therefore, no secondary growth occurs in them.

So, the correct answer is 'Both Assertion and Reason are incorrect'.

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