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Plant Stem Anatomy and Physiology

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Questions and Answers

What is the main function of the hypodermis in the stem?

Acting as a barrier to harmful organisms

Minimizing transpiration by compactly arranging cells

Providing mechanical strength to the stem with thickened cells (correct)

Serving as a food reserve

Which layer separates the cortex from the vascular bundles in the stem?

Endodermis (correct)

Hypodermis

Epidermis

Cortex

What are the longitudinal strands of conducting tissues in the stem composed of?

Cuticles

Starch grains

Collenchyma cells

Xylem and phloem (correct)

Which layer of the stem serves as a food reserve and may be termed as a starch sheath?

Endodermis (B) Signup and view all the answers

What is the composition of the hypodermis in the stem?

Collenchyma cells specially thickened at the corners due to the deposition of thick cellulose (B) Signup and view all the answers

What is the primary function of the epidermis in the stem?

Minimizing transpiration (D) Signup and view all the answers

What is the arrangement of cells in the epidermis of the stem like?

Compact arrangement with greatly thickened cuticles (A) Signup and view all the answers

What serves as a barrier to harmful organisms in the stem?

Epidermis (B) Signup and view all the answers

What do vascular bundles in the stem consist essentially of?

Xylem and phloem arranged in a ring around the central pith (B) Signup and view all the answers