Question

Secondary growth occurs due to activity of.

• A. Cork cambium
• B. Vascular cambium
• C. Intercalary meristem
• D. Both A and B

Answer 1

The correct option is D Both A and B

A. Cork cambium – a ring of meristematic tissue or cambium formed by the dedifferentiation of parenchyma present in the general cortex.

B. Vascular cambium – a ring meristematic tissue or cambium, formed by the association of intra and interfascicular cambium.

C. Intercalary meristem – it is a type of meristem present between the permanent tissues of stem apex of grasses.

So, the correct option is – ‘Both A and B’.