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Chapters
1: Cell Cycle and Cell Division
2: Structure of Chromosome
3: Genetics
Unit 2: Plant Physiology
4: Absorption by Roots
▶ 5: Transpiration
Chapter 6: Photosynthesis
Chapter 7: Chemical Coordination in Plants
Unit 3: Human Anatomy and Physiology
Chapter 8: Circulatory System
Chapter 9: Human Excretory System
Chapter 10: Nervous System
Chapter 11: Sense Organs
Chapter 12: Endocrine System
Chapter 13: Reproductive System
Unit 4: Population
Chapter 14: Population
Unit 5: Human Evolution
Chapter 15: Human Evolution
Unit 6: Pollution
Chapter 16: Pollution
![Lakhmir Singh solutions for Biology [English] Class 10 ICSE chapter 5 - Transpiration - Shaalaa.com](/images/biology-english-class-10-icse_6:7181a54a5d284da8b50dd2f92022a1f6.jpg "Lakhmir Singh solutions for Biology [English] Class 10 ICSE chapter 5 - Transpiration")
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Solutions for Chapter 5: Transpiration
Below listed, you can find solutions for Chapter 5 of CISCE Lakhmir Singh for Biology [English] Class 10 ICSE.
Lakhmir Singh solutions for Biology [English] Class 10 ICSE 5 Transpiration Intex Quesions [Pages 76 - 82]
TEST YOUR UNDERSTANDING -1 Fill in the Blanks
Cobalt chloride paper changes from blue to ______ on absorbing moisture.
Ganong's potometer measures the water ______ by the plant.
In transpiration, the water is lost in the form of ______.
True or False.
Rate of transpiration is high in desert plants.
True or False.
Loss of weight in a plant before and after a set of conditions indicate loss of water through transpiration.
True or False.
The rate of transpiration is the same in all the plants.
Multiple Choice Questions
At what time the weight of plant is measured in the weighing method of measuring transpiration?
Before experiment
After experiment
Both before and after the experiment
None of these
Ganong's potometer may not give accurate results due to:
Use of cut twig
Variation in temperature
Both use of cut twig and variation in temperature
None of these
THINK AND ANSWER
Why do leaves of some plants wilt during midday inspite of there being plenty of water in the soil?
Do you know how plants affect the climate of an area?
Does age of a plant affect the rate of transpiration?
Does transpiration mean excretion for the plants?
TEST YOUR UNDERSTANDING - 2 Fill in the Blanks
Lenticels are the openings in the bark of woody ______.
Transpiration is regulated by the movements of ______.
______ is more in the lower surface of the leaf.
True or False.
90% of total transpiration is done by stomata.
True or False.
Thickness of cuticle affects the rate of transpiration.
True or False.
Transpiration is highest during winters.
Multiple Choice Questions
Rate of transpiration is not affected by ______.
age of plant
light
wind
humidity
Transpiration pull is due to ______.
high soil water
loss of water by cells
high CO2 levels
none of these
TEST YOUR UNDERSTANDING - 3 Fill in the Blanks
______ are pores through which xylem sap is excreted.
Rate of transpiration decreases with an increase in ______.
Thick ______ cuts down the rate of transpiration.
True or False.
Humidity promotes transpiration in plants.
True or False.
Sunken stomata are present in xerophytes.
True or False.
Guttation occurs during midday.
Multiple Choice Questions
Most of transpiration in tall trees occurs through ______.
stomata
lenticels
cuticles
hydathodes
The rate of transpiration increases with an increase in ______.
atmospheric pressure
wind velocity
humidity
level of carbon dioxide
Lakhmir Singh solutions for Biology [English] Class 10 ICSE 5 Transpiration EXERCISE [Pages 83 - 84]
Objective Questions
True or False.
Rate of respiration affects rate of transpiration.
True or False.
Transpiration will be fastest when the day is hot, dry and windy.
True or False.
The change in colour of litmus paper is an indicator of demonstration of transpiration.
True or False.
In a leaf, the cell sap in each cell exerts a wall pressure outward on the cell wall.
True or False.
The opening and closing of stomata is regulated by the guard cells.
Fill in the Blanks
Exudation of sap from injured or cut part of a plant is ______.
Sunken stomata are a feature of plants growing in ______.
In cactus, the leaves are modified into ______ to reduce transpiration.
More transpiration occurs from the ______ surface of the leaf.
Special pores at the tip of veins through which guttation occurs is ______.
Match the Following.
| Column I | Column II |
| (i) Lenticels | (a) Nerium |
| (ii) Cobalt chloride paper | (b) Banana leaf |
| (iii) Sunken stomata | (c) Leaf tip |
| (iv) Hydathodes | (d) Woody stem |
| (v) Guttation | (e) Transpiration |
Give One Word Answer.
A scientist name used for measuring rate of transpiration.
Give One Word Answer.
Part of leaf that allows transpiration.
Give One Word Answer.
Cell sap in rubber tree.
Give One Word Answer.
The outer waxy covering of epidermis.
Give One Word Answer.
Device to measure the rate of transpiration.
Multiple Choice Questions
Which of the following is not a function of stomata?
Loss of water
Exchange of gases
Regulation of turgidity of cells
Loss due to guttation
Which among the following is an external factor affecting transpiration?
Cuticle
Leaf orientation
Number of stomata
Humidity
Solutions for 5: Transpiration
Lakhmir Singh solutions for Biology [English] Class 10 ICSE chapter 5 - Transpiration
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