Question

Primary meristem that lies at the base of internodes in grasses is responsible for
(1) Apical growth
(2) Secondary growth
(3) Providing mechanical strength
(4) Regenerating parts removed by grazing herbivores​

Answer 1

Primary meristem that lies at the base of internodes in grasses is responsible for

APICAL GROWTH

Answer 2

Answer:

The primary meristem that lies at the base of internodes in grasses is responsible for regenerating parts removed by grazing herbivores​.

The correct option is (4) Regenerating parts removed by grazing herbivores.

Explanation:

• The intercalary meristem is located between the regions of permanent tissue.
• It occurs in the internodes in the stem at the base of nodes and leaf blades of the plant body and it mitotically divides and is responsible for vertical growth or intercalary growth (growth in length in the middle position) of the plants.

• They are formed by a portion of apical meristem left behind due to tissue differentiation of an organ.

• These primary meristems ultimately disappear and give rise to permanent tissues.

• They help to regenerate the lost parts of a plant eaten by herbivores.
• This is essential to these monocots, especially grass plant groups, as it serves as an adaptive mechanism against herbivory.
• These plants can rapidly regrow leaves and elongate stems through intercalary growth to compensate for plant parts grazed by herbivores.

Hence option 4) is the most appropriate correct answer.

#SPJ3