EASY
Earn 100

Define homeostasis in plants.

Important Questions on Homeostasis

MEDIUM

The diagram below represents a structure found in a leaf. Study the same and answer the question that follow:
Question Image.

What is the function of the parts labelled A?

MEDIUM

Study the diagrams and answer the following :
Question Image.

Label parts a, b, c and d.

EASY
Draw a labelled diagram of the stomatal apparatus and label the following parts in it,
Stoma, guard cell, chloroplast, epidermal cells, and cell wall. 
 
EASY

The diagram below represents a structure found in a leaf. Study the same and answer the question that follow:
Question Image.

What is the biological term for the above structure?

HARD

Study the diagrams and answer the following:
Question Image
What is the visible noticeable difference between the diagrams 'A' and 'B'?

EASY
Turgidity of guard cells leads to opening of stomata.
MEDIUM
State the exact location of the following:
Guard cells.
EASY

Name the following:

The cells which regulate the openings in the epidermis of leaves. 

EASY

Study the diagrams and answer the following:
Question Image
Name the structure drawn.

EASY
Where are stomata mostly found? 
MEDIUM

The diagram below represents a structure found in a leaf. Study the same and answer the question that follow:
Question Image.

Mention two structural features of A, which help in opening and closing of stomata.

MEDIUM

Study the diagrams and answer the following :
Question Image.

Name the force responsible for change in shape.

MEDIUM
The opening of stomata is controlled by the _____.
EASY

The diagram below represents a structure found in a leaf. Study the same and answer the question that follow:
Question Image.

Where is this structure likely to be found in a leaf?

EASY
Give two reasons why greater transpiration occurs from the lower surface of a dorsiventral leaf.
EASY
Name the cells that help in the opening and closing of stomata.
EASY
The waxy external covering of epidermal cells is called:
EASY
Name the organ to which the guard cells belong and state one function.
MEDIUM
Name the cells that surround the pores on leaves.
MEDIUM

Given below is a set of five terms. Rewrite the terms in a logical sequence as directed at the end of each statement.
Stoma, Mesophyll cell, Xylem, Substomatal space, lntercellular space (loss of water due to transpiration).