Stomata

IMPORTANT

Stomata: Overview

In this topic, we will learn about stomata and their significant features. It discusses the structure and functions of stomata with the aid of diagrams.

Important Questions on Stomata

MEDIUM
IMPORTANT

Mention the role of abscisic acid in stomatal closure.

EASY
IMPORTANT

Explain starch sugar hypothesis ?

MEDIUM
IMPORTANT

Match the column-I with column-II and select the correct combination.

  Column-I   Column-II
(a) Bulliform cells (i) Hydathodes
(b) Subsidiary cells (ii) Isobilateral leaf
(c) Epithem (iii) Stomata
(d) Cork cells (iv) Phellem

EASY
IMPORTANT

Which of the following cells play an important role in the transpiration other than guard cells?

EASY
IMPORTANT

Explain the location of subsidiary cells in the body of a plant.

EASY
IMPORTANT

Which cells are present in the region of next to guard cells in the body of a plant? (subsidiary cells/parenchyma cells)

MEDIUM
IMPORTANT

Explain the role of subsidiary cells in transpiration.

EASY
IMPORTANT

Subsidiary cells have no role in the stomatal transpiration.

EASY
IMPORTANT

Which of the following have sunken stomata?

EASY
IMPORTANT

The specialised plant cells present in the epidermis of the leaves, surrounding the stomata are called_____cells.

EASY
IMPORTANT

Given below is a diagram of the stomatal apparatus. Match the labels with the corresponding names of the compounds. 

Question Image

Choose the correct combination.

EASY
IMPORTANT

Red light is more effective than blue light in opening the stomatal pore. Yes or no? If no, correct the statement.

EASY
IMPORTANT

Which of the following amphistomatous leaves would dry up last?

MEDIUM
IMPORTANT

The following figure shows the stomatal apparatus. Identify the parts labeled as A, B, C and D. Choose the correct answer from the following

Question Image

EASY
IMPORTANT

Water is lost from the leaves by the transpiration process through _____.

EASY
IMPORTANT

An outline sketch of a tree is shown in a diagram below. Study the name and answer questions that follows

Question Image

Draw a neat and labelled diagram of an opened stomata.

EASY
IMPORTANT

________ are the specialized epidermal cells surrounding guard cells.

EASY
IMPORTANT

The metal ion involved in the stomatal regulation or stomata opening. There is accumulation of the following element in the guard cells ______ during stomatal movement.

EASY
IMPORTANT

Which of the following facilitates opening of stomatal aperture?

MEDIUM
IMPORTANT

Stomata of CAM plants