Question

The sclerenchymatous hypodermis is found in ____________.

• A. Dicot root.
• B. Monocot root.
• C. Dicot stem.
• D. Monocot stem.

Answer 1

The correct option is D

Monocot stem.

The correct option is D.

Explanation for the correct option:

1. A monocotyledonous stem has a sclerenchymatous hypodermis.
2. It is 2-3 layers thick and located beneath the epidermis.
3. It is made up of lignified sclerenchyma fibres with thick walls.

Explanation for the incorrect options:

Option A:

1. Dicot roots have a taproot structure, which means they grow deep into the soil as a single thick root with lateral branches.
2. The ground tissue of dicot roots is primarily composed of parenchyma cells and surrounds the central vascular structures of the roots.

Option B:

1. The epidermis, cortex, endodermis, pericycle, xylem, phloem, and pith make up the monocot root.
2. A monocot root, unlike a dicot root, has a pith in the stele.
3. It also has vascular bundles made up of both xylem and phloem.

Option C:

1. Vascular bundles are arranged in a ring around the pith in the Dicot Stem.
2. There are four types of vascular bundles: conjoint, collateral, open, and endarch.
3. Dicotyledonous stems or dicot stems contain two cotyledon or embryonic leaves.

Final answer: The sclerenchymatous hypodermis is found in the monocot stem.