Transpiration

IMPORTANT

Transpiration: Overview

This Topic covers sub-topics such as Transpiration, Potometer, Transpiration Stream, External Factors Affecting Transpiration, Measuring Transpiration Rates, Uptake of Minerals Ions in Plants and, Water Potential Gradients

Important Questions on Transpiration

EASY
IMPORTANT

The water uptake during which of the following process can be measured with the help of potometer?

MEDIUM
IMPORTANT

The rate of water uptake during transpiration can be measured with the help of potometer.

EASY
IMPORTANT

Water moves from soil to root, from root to leaf, and from leaf to air down a gradient of water potential.

EASY
IMPORTANT

What is water potential gradient?

EASY
IMPORTANT

What is the significance of the transcription stream?

EASY
IMPORTANT

Write a short note on transcription stream?

MEDIUM
IMPORTANT

Which of the following statements is correct?

EASY
IMPORTANT

A piece of apparatus used for measuring the rate at which a plant shoot takes up water is called Potometer or Osmometer.

EASY
IMPORTANT

When starch is converted to glucose in guard cells, does their water potential increase or decrease?

HARD
IMPORTANT

Distinguish between the following pair
Transpiration and evaporation

EASY
IMPORTANT

When does wilting occur?

HARD
IMPORTANT

Describe the factors affecting transpiration.

MEDIUM
IMPORTANT

Describe an external factor affecting transpiration.

EASY
IMPORTANT

Inorganic nutrients are found in the soil in the form of

EASY
IMPORTANT

Give suitable explanations for the following :
More transpiration occurs from the lower surface of a dorsiventral leaf. 
 

EASY
IMPORTANT

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Figure represents the vertical section of a leaf.
Name the structure shown in the leaf section.

EASY
IMPORTANT

Distinguish between :

Transpiration and perspiration.

EASY
IMPORTANT

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The diagram represents a certain physiological process in plants.

Why is the pot covered with a polythene bag? 

EASY
IMPORTANT

The diagram represents a certain physiological process in plants.

Name the process.

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EASY
IMPORTANT

 List three advantages of transpiration.