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Selina solutions for Class 10 Biology chapter 4 - Transpiration

Selina ICSE Concise Biology for Class 10

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Selina Selina ICSE Concise Biology Class 10

Selina ICSE Concise Biology for Class 10

Chapter 4: Transpiration

Chapter 4: Transpiration solutions [Page 0]

MULTIPLE CHOICE TYPE: 

Transpiration pull will be maximum under which set of the following conditions?
(a) Open stomach, dry atmosphere and moist soil.
(b) Open stomata, high humid atmosphere and well irrigated soil.
(c) Open stomata, high humid atmosphere and dry soil.
(d) closed stomata, dry atmosphere and dry soil.

MULTIPLE CHOICE TYPE: 

With decrease in atmospheric pressure, the rate of transpiration will
(a) increase
(b) decrease rapidly
(c) decrease slowly
(d) remain the same 

MULTIPLE CHOICE TYPE: 

The rate of transpiration is more when
(a) atmosphere is dry
(b) temperature is high
(c) humidity is high
(d) atmosphere is dry and temperature is high 

MULTIPLE CHOICE TYPE:

One of the internal factors which affect the rate of transpiration is
(a) big size of the leaf
(b) colour of the leaf
(c) sunken stomata
(d) sunny day 

MULTIPLE CHOICE TYPE: 

Guttation takes place through
(a) stomata
(b) lenticels
(c) lower epidermis of leaves
(d) hydathodes 

MULTIPLE CHOICE TYPE: 

The loss of water as water vapour from the acrial parts of a plant is known as
(a) evaporation
(b) perspiration
(c) guttation
(d) transpiration 

MULTIPLE CHOICE TYPE: 

Transpiration will be fastest when the day is
(a) cool, humid and windy
(b) hot, humid and still
(c) hot, humid and windy
(d) hot, dry and windy 

MULTIPLE CHOICE TYPE: 

Most of the transpiration in tall trees occurs through
(a) stomata
(b) Lenticels
(c) cuticle
(d) Bark 

 

MULTIPLE CHOICE TYPE: 

Transpiration is best defined as
(a) loss of water by the plant
(b) evaporation of water from the surfaces of a plant
(c) loss of water, as water vapour, by a plant
(d) release of water by a plant into the atmosphere 

Chapter 4: Transpiration solutions [Page 0]

Name the following: 

openings on the stem through which transpiration occurs 

 

Name the following : 

The process by which the intact plant loses water in the form of droplet 

Name the following: 

An instrument used to find the rate of transpiration 

Name the following: 

A plant in which the stomata are sunken 

Name the following: 

The apparatus to record the rate of transpiration in a cut shoot. 

Name the following:  

Any two parts of a leaf which allows transpiration. 

Name the following: 

The structure in a leaf that allows guttation. 

Name the following: 

Loss of water as droplets from the margins of certain leaves. 

Fill in the blanks: 

Transpiration is the loss of water as water …………… from the ………… parts of the plant.

Fill in the blanks: 

Closing of …………… and shedding of leaves reduce ………….. 

Fill in the blanks: 

Transpiration helps in creating ………………. Force and in eliminating excess…………. 

Chapter 4: Transpiration solutions [Page 0]

Given below is an example of a certain structure and its special functional activity:
Chloroplasts and Photosynthesis.
In a similar way, write the functional activity against each of the following: 

Hydathodes and ………………………. 

Given below is an example of a certain structure and its special functional activity:
Chloroplasts and Photosynthesis.
In a similar way, write the functional activity against each of the following: 

Leaf spines and ………………………… 

Given below is an example of a certain structure and its special functional activity:
Chloroplasts and Photosynthesis.
In a similar way, write the functional activity against each of the following: 

Lenticels and …………………………… 

Given below is an example of a certain structure and its special functional activity:
Chloroplasts and Photosynthesis.
In a similar way, write the functional activity against each of the following: 

Thick cuticle and ……………………….. 

State whether the following statements are True Or False ?  

Rewrite the false statements in the correct form by changing either the first or the last word only.

Most transpiration occurs at midnight 

State whether the following statements are True Or False ?  

Transpiration creates a pull for upward movement of the sap.

State whether the following statements are True (T) Or False (F)? 

Wind velocity has an effect on transpiration. 

State whether the following statements are True Or False? 

Rewrite the false statements,in the correct form by changing either the first or the last word only .

Voltmeter is an instrument used for measuring the rate of transpiration in green plants. 

 

Give suitable explanation for the following: 

A higher rate of transpiration is recorded on a windy day rather than on a calm day. 

 

Give suitable explanation for the following: 

Excessive transpiration results in the wilting of the leaves. 

Give suitable explanation for the following: 

Water transpired is the water absorbed. 

Give suitable explanation for the following: 

More transpiration occurs from the lower surface of a dorsiventral leaf. 

Give suitable explanation for the following:

Cork and bark of trees help in preventing loss of water

 

Give suitable explanation for the following: 

Perspiration and transpiration help to cool the body temperature of the organism. 

Give suitable explanation for the following: 

On a bright sunny day, the leaves of certain plants roll up.

Which of the following statements are true and which ones are false? Give reason in support of your answer. 

Potometer is an instrument used for Demonstration of transpiration occurring from the lower surface of a leaf. 

Which of the following statements are true and which ones are false? Give reason in support of your answer. 

Forest contribute in bringing rains. 

Which of the following statements are true and which ones are false? Give reason in support of your answer. 

Hydathodes are similar to stomata in plant physiology. 

Which of the following statements are true and which ones are false? Give reason in support of your answer.

Atmospheric humidity promotes transpiration from a green plant.  

Which of the following statements are true and which ones are false? Give reason in support of your answer. 

Some desert plants have sunked stomata on their leaves. 

Which of the following statements are true and which ones are false? Give reason in support of your answer. 

Most transpiration occurs during midday.

 

Chapter 4: Transpiration solutions [Page 0]

What is wilting? Some plants show wilting of their leaves at noon even when the soil is well watered, Why is it so? 

Why are the stomata in most plants more numerous on the lower surface of a leaf instead of being on the upper surface? 

Suppose you have a small rose plant growing in a pot. How would you demonstrate transpiration in it? 

What is a photometer? 

What is lenticular transpiration? Mention one major difference between lenticular transpiration and stomatal transpiration. 

 

List any three major factors that accelerate the rate of transpiration. 

There is a general belief that forests tend to bring more frequent rains. Can you explain it scientifically? 

List the four advantages of transpiration to the plants. 

Mention any three methods by which the plants tend to reduce transpiration. 

Droplets of water may sometimes be seen along the margins of the leaves of a banana plant, growing in wet soil, in the mornings. Are these dew drops? Comment upon your answer.

Briefly explain how the rate of transpiration is affected by 

Intensity of light 

Chapter 4: Transpiration solutions [Page 0]

In an experiment, four freshly plucked leaves (A-D) of a plant, such as those of china – rose, were treated as follows:
(a) Coated with Vaseline on its upper surface.
(b) coated on the lower surface.
(c) coated on both surface
(d) left uncoated.
All the four leaves A, B, C & D were left in a room for about 24 hours.
(i) which leaf would become most limp? Why?
(ii) which leaf would show least limping? Why?

Given below is a diagrammatic sketch (surface view) of a stomatal apparatus from a dicot leaf.

 

(a) Label the parts numbers 1-3
(b) Is this state, open or closed?
(c) Is this stoma, of a dicot leaf or a monocot leaf?
(d) Redraw a sketch of the stomatal apparatus in the state opposite to the one shown here. 

Given alongside is the diagram of an experimental set-up to demonstrate a certain phenomenon in plants.
(a) Name the phenomenon being demonstrated.
(b) what is the purpose of putting oil the test tube?
(c) Would it make a difference if the experimental set – up is kept in bright sunshine?
(d) what is the purpose of the spring balance in the set-up? 

 

 

Chapter 4: Transpiration

Selina Selina ICSE Concise Biology Class 10

Selina ICSE Concise Biology for Class 10

Selina solutions for Class 10 Biology chapter 4 - Transpiration

Selina solutions for Class 10 Biology chapter 4 (Transpiration) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the CISCE Selina ICSE Concise Biology for Class 10 solutions in a manner that help students grasp basic concepts better and faster.

Further, we at shaalaa.com are providing such solutions so that students can prepare for written exams. Selina textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.

Concepts covered in Class 10 Biology chapter 4 Transpiration are Transpiration - Process and Significance, Ganong’S Potometer and Its Limitations, The Factors Affecting Rate of Transpiration, Experiments on Transpiration, A Brief Idea of Guttation and Bleeding.

Using Selina Class 10 solutions Transpiration exercise by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in Selina Solutions are important questions that can be asked in the final exam. Maximum students of CISCE Class 10 prefer Selina Textbook Solutions to score more in exam.

Get the free view of chapter 4 Transpiration Class 10 extra questions for Biology and can use shaalaa.com to keep it handy for your exam preparation

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