KVPY (Kishore Vaigyanik Protsahan Yojana) Stream-SA (Class 11) Biology: Questions 1 of 304

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» Structural Organization in Animals and Plants » Plant Tissues - Morphology, Anatomy and Functions » Leaf

Appeared in Year: 2014

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Question

The stalk of a leaf is derived from which one of the following types of plant tissue?

Choices

Choice (4) Response

a.

Collenchyma

b.

Parenchyma

c.

Chlorenchyma

d.

Sclerenchyma

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Ques. Time s

Answer

a.

Explanation

The stalk of a leaf is derived from collenchyma types of plant tissue.

Collenchyma cells have thick walls that are especially thick at their corners. These cells provide mechanical support for the plant. The petiole (stalk) of leaves is usually derived from collenchyma.

 Image showing Collenchyma cells.

Image Showing Collenchyma Cells.

Collenchyma tissues are mainly found under the epidermis in young stems in the large veins of leaves and provide support to leaf stalk.

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