Question 1

Q1: Draw illustrations to bring out the anatomical difference between (a) Monocot root and Dicot root (b) Monocot stem and Dicot stem

Accepted Answer

Question 2

Q2: Cut a transverse section of young stem of a plant from your school garden and observe it under the microscope. How would you ascertain whether it is a...

Accepted Answer

To ascertain whether the young stem is a monocot or a dicot, I would observe the following anatomical features in its transverse section under a microscope: 1.  Arrangement of Vascular Bundles:        Dicot Stem: The vascular bundles are arranged in a characteristic ring.        Monocot Stem: The va...

Question 3

Q3: The transverse section of a plant material shows the following anatomical features - (a) the vascular bundles are conjoint, scattered and surrounded b...

Accepted Answer

Based on the given anatomical features, the plant material is identified as a Monocotyledonous Stem. Reasons: 1.  Scattered Vascular Bundles: The arrangement of vascular bundles in a scattered manner throughout the ground tissue is a characteristic feature of monocot stems. Dicot stems have vascular...

Question 4

Q4: What is stomatal apparatus? Explain the structure of stomata with a labelled diagram.

Accepted Answer

Stomatal Apparatus: The stomatal apparatus consists of the stomatal aperture (pore), the two guard cells that surround it, and the surrounding subsidiary cells. Structure of Stomata: Stomata are tiny pores present in the epidermis of leaves, and sometimes on young stems. They are essential for regul...

Question 5

Q5: Name the three basic tissue systems in the flowering plants. Give the tissue names under each system.

Accepted Answer

On the basis of their structure and location in the plant body, there are three basic tissue systems in flowering plants. These are: 1.  The Epidermal Tissue System: This system forms the outermost covering of the plant body.        Tissues/Components: It comprises epidermal cells, stomata, and epid...

Question 6

Q6: How is the study of plant anatomy useful to us?

Accepted Answer

The study of plant anatomy, which is the study of the internal structure of plants, is useful in several ways: 1.  Understanding Plant Function: Anatomy helps us understand how different tissues and organs are structured to perform specific functions like photosynthesis, transport, storage, and supp...

Question 7

Q7: Describe the internal structure of a dorsiventral leaf with the help of labelled diagrams.

Accepted Answer

A dorsiventral leaf is typical of dicotyledonous plants. A vertical section through the lamina reveals three main parts: the epidermis, the mesophyll, and the vascular system. 1.  Epidermis:        It forms the outermost protective layer on both surfaces of the leaf.        Adaxial Epidermis: This i...

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