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Frank Frank Class 10 Biology Part 2

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Chapter 5: Transpiration

Exercise

Chapter 5: Transpiration Exercise Exercise solutions [Page 60]

Exercise | Q 1.01 | Page 60

Answer the following (only in few words);

What is transpiration?

Exercise | Q 1.02 | Page 60

Answer the following (only in few words);

In which form, water comes out in transpiration?

Exercise | Q 1.03 | Page 60

Answer the following (only in few words);

Where does transpiration take place in leaves? Give names of the various parts.

Exercise | Q 1.04 | Page 60

Answer the following (only in few words);

Give one important difference between transpiration and evaporation.

Exercise | Q 1.05 | Page 60

Answer the following (only in few words);

When does stomatal transpiration take place in plants?

Exercise | Q 1.06 | Page 60

From which structure cuticular transpiration occur in plants?

Exercise | Q 1.07 | Page 60

Answer the following (only in few words);
How does transpiration take place in night?

Exercise | Q 1.08 | Page 60

Answer the following (only in few words);
What is the effect of temperature on transpiration?

Exercise | Q 1.09 | Page 60

Answer the following (only in few words);
What is the impact of more atmospheric pressure on transpiration?

Exercise | Q 1.1 | Page 60

Answer the following (only in few words);
What is the relationship between transpiration water and water absorbed from the soil?

Exercise | Q 2 | Page 60
Suggest with an experiment, evaporation of water in vapour form, in transpiration process.
Exercise | Q 3 | Page 60
How many types of transpiration are found in plants?
Exercise | Q 4 | Page 60
When does transpiration occur the highest?
Exercise | Q 5 | Page 60
What is the difference between transpiration and evaporation?
Exercise | Q 6 | Page 60
What is the difference between transpiration and guttation?
Exercise | Q 7 | Page 60
Give three means of water loss in plants.

Chapter 5: Transpiration Exercise Exercise solutions [Page 61]

Exercise | Q 1 | Page 61
Explain in brief the opening and closing mechanism of stomata.
Exercise | Q 2 | Page 61
Explain the mechanism of stomata?
Exercise | Q 3 | Page 61
Why is transpiration important for plants?
Exercise | Q 4 | Page 61
What do you mean by transpiration? Explain its importance in plants.
Exercise | Q 5 | Page 61
Explain typical structure of stomata.
Exercise | Q 6 | Page 61
Explain the importance of transpiration.
Exercise | Q 7.01 | Page 61

Write short note on the following:
Hydathodes

Exercise | Q 7.02 | Page 61

Write short note on the following:
Guttation

Exercise | Q 8.01 | Page 61

Explain how the rate of transpiration is affected on:
a windy day

Exercise | Q 8.02 | Page 61

Explain how the rate of transpiration is affected on:
a foggy day

Exercise | Q 9 | Page 61
What is the impact of transpiration on absorption? Explain.
Exercise | Q 10 | Page 61

The diagram given alongside is an apparatus used to study a particular phenomenon in plants.
(i) Name the apparatus.
(ii) What is it used for?
(iii) What is the role played by the air bubble in this experiment?
(iv) Of what use is the reservoir?

Exercise | Q 11.1 | Page 61

Give a reason.
What happens to the movement of the air-bubble if the apparatus shown above is kept in dark.

Exercise | Q 11.2 | Page 61

Give a reason.
What happens to the movement of the air-bubble if the apparatus shown above is kept in sunlight.

Exercise | Q 11.3 | Page 61

Give a reason.
What happens to the movement of the air-bubble if the apparatus shown above is kept in front of a fan?

Exercise | Q 12 | Page 61

Comment on the following statement:
A well-watered potted plant shows wilting of leaves on a hot sunny day.

Exercise | Q 13 | Page 61
Name the tissue which conducts water absorbed by the roots to the upper parts of a herbaceous plant.
Exercise | Q 14.1 | Page 61

Distinguish between the following :
Transpiration and evaporation

Exercise | Q 14.2 | Page 61

Distinguish between the following :
Guttation and bleeding

Exercise | Q 14.3 | Page 61

Distinguish between the following :
Cuticular transpiration and lenticular transpiration

Exercise | Q 14.4 | Page 61

Distinguish between the following :
Stomata and lenticels

Exercise | Q 15 | Page 61
Name the organ in which guard cells are located and mention their main functions.
Exercise | Q 16 | Page 61
Name the process by which the aerial parts of a green plant give out water as water vapour.
Exercise | Q 17 | Page 61
What is photometer? What is its use?
Exercise | Q 18 | Page 61
Give any three factors that enhance the rate of transpiration.

Chapter 5: Transpiration Exercise Exercise solutions [Page 62]

Exercise | Q 1 | Page 62
Why do plants absorb more water than what is required by them? Give three uses of this phenomenon.
Exercise | Q 2.01 | Page 62

Litmus paper is used to demonstrate transpiration from the leaves of the green plant.

  • True

  • False

Exercise | Q 2.02 | Page 62
Write the correct substitutes for only the first two words if it is a wrong statement.
Exercise | Q 3 | Page 62
Describe an experiment to prove that transpiration occurs more from the lower surface of a leaf.
Exercise | Q 4 | Page 62
Name the instrument used for measuring the rate of transpiration.
Exercise | Q 5 | Page 62
Name the paper which is used to show loss of water through stomata of a leaf.
Exercise | Q 6 | Page 62
Low humidity in the atmosphere results in decrease in the rate of transpiration. (True / false)
  • True

  • False

Exercise | Q 7 | Page 62

Complete the following statement by choosing the correct alternative given in the bracket:
Loss of water as droplets through leaves of an intact plant is termed ______.

  • Bleeding

  • Guttation

  • Transpiration

Exercise | Q 8 | Page 62
Mention three adaptations found in plants to reduce transpiration.
Exercise | Q 9 | Page 62

The figure below represents the set-up at the start of certain experiment to demonstrate an activity of plants:
(i) What is the aim of the experiment?
(ii) Why has oil been put in each test tube?
(iii) What will be the observations in the two test-tubes after about 2-3 days?
(iv) Give reasons to explain any change observed as answered in (iii) above.
(v) Why has the test-tube b without the plant, been taken in the experiment?

Exercise | Q 10.1 | Page 62

Mark the most appropriate answer in the following:

If the rate of transpiration becomes more than the rate of photosynthesis, plant will ______

  • Continue to live, but will not be able to store food.

  • Be killed instantly.

  • Grow more vigorously because more energy will be available.

  • Stop growing and gradually die of starvation.

Exercise | Q 10.2 | Page 62

Mark the most appropriate answer in the following:

Transpiration pull will be maximum under which of the following conditions?

  • Open stomata, dry atmosphere and moist soil.

  • Open stomata, high humid atmosphere and well irrigated soil.

  • Open stomata, high humid atmosphere and dry soil.

  • Closed stomata, dry atmosphere and dry soil.

Exercise | Q 11 | Page 62
Name the opening on the stem through which transpiration occurs.
Exercise | Q 12 | Page 62

Fill in the blank with the function in the following:

Hydathodes: ______

Exercise | Q 13 | Page 62

A well watered healthy potted plant with variegated leaves was kept in darkness for about 24 hours. It was then set up as shown in the diagram and exposed to light for about 12 hours. At the end of this time, leaf x and y were tested for starch. Study the diagram and answer the questions that follow:
(i) Why was the plant initially kept in darkness for 24 hours?
(ii) What is the function of sodium hydroxide solution in the flask?
(iii) Select the correct leaf from the five available choices shown in the diagram as a, b, c, d and e. Rewrite the correct answer by filling in the appropriate letter for the questions that follow:
1. After the starch test, leaf x would look like ______.
2. After the starch test, leaf y would look like ______.
(iv) The experiment with leaf y shows that photosynthesis requires the presence of certain factors. Mention any one factor.

Chapter 5: Transpiration Exercise Exercise solutions [Page 63]

Exercise | Q 1 | Page 63

The apparatus shown here is Ganong's photometer designed to demonstrate unequal transpiration from the two surfaces of a dorsiventral leaf. Before keeping the leaf in between the cups, anhydrous calcium chloride (CaCl2) contained in two small vials were weighted and placed in both the cups. The ends of the cups were weighted and with corks through which two mercury manometers were connected. After a few hours, CaClvials were taken out and weighed again.
(i) What is the purpose of keeping CaCl2 vials inside the cup?
(ii) After a few hours, CaCl2 vials were taken out and weighed again.
will you except any difference in weight? If so, give reasons.
(iii) What was expect the purpose of using a manometer?
(iv) What do you mean by transpiration?

Exercise | Q 2 | Page 63

The diagram alongside represents a structure found in a leaf. Study the same and answer the questions that follow:
(i) Name the parts labeled A and B.
(ii) What is the biological term for the above structure?
(iii) What is the function of the part labeled A?
(iv) Mention two structural features of A, which help in the function mentioned in (iii) above?
(v) Where is this structure likely to be found in a leaf?
(vi) The structure (fig.5.22) helps in the process of transpiration. Explain the term transpiration.
(vii) How many other cells are found surrounding this structure as seen in the diagram?

Chapter 5: Transpiration Exercise Exercise solutions [Page 64]

Exercise | Q 1.01 | Page 64

Choose the correct answer:

Which one is responsible for guttation?

  • Diffusion 

  • Root pressure 

  • Transpiration 

  • Photosynthesis

Exercise | Q 1.02 | Page 64

Choose the correct answer:

Rate of transpiration is more, when __________

  • High humidity is present in atmosphere.

  • Air may be stopped.

  • Extra water is in sky.

  • Environmental conditions may dry.

Exercise | Q 1.03 | Page 64

Choose the correct answer:

Stomata open during day time because guard cells

  • Do photosynthesis and synthesis osmotically active.

  • Are of thin walls.

  • Are of bean shape.

  • Help in exchange of gases.

Exercise | Q 1.04 | Page 64

Choose the correct answer:

The cause of wilting is more ___________

  • respiration 

  • photosynthesis 

  • absorption 

  • transpiration

Exercise | Q 1.05 | Page 64

Choose the correct answer:

Guttation is a mechanism of removal of water from plant by _____________

  • Stomata 

  • hydathodes 

  • lenticles 

  • wounds

Exercise | Q 1.06 | Page 64

Choose the correct answer:

Secretion of sap from apex of non-injured leaf is called ___________

  • Evaporation 

  • guttation 

  • evapo-transpiration 

  • transpiration

Exercise | Q 1.07 | Page 64

Choose the correct answer:

Transpiration is more ____________

  • From the upper surface of leaf.

  • From the lower surface of leaf.

  • From stem.

  • From upper and lower surface of leaf.

Exercise | Q 1.08 | Page 64

Choose the correct answer:

The rate of transpiration is determined with the following instrument ____________

  • Potometer 

  • Evaporimeter 

  • Atmometer 

  • Perimeter

Exercise | Q 1.09 | Page 64

Choose the correct answer:

In herbaceous plants, following percentage of absorbed water comes out __________

  • 80

  • 60

  • 90

  • 40

Exercise | Q 1.1 | Page 64

Choose the correct answer:

Transpiration rate is high, when ___________

  • Atmospheric water is saturated with vapour.

  • Light is very dim.

  • Temperature is low.

  • Atmosphere is dry and temperature is high.

Exercise | Q 1.11 | Page 64

Choose the correct answer:

More water loss in plants is the cause of wilting. This can be checked by ____________

  • Keeping plant in bright light

  • Spraying alcohol on the plant

  • Layering the bottom with Vaseline

  • Giving more fertilizer to the soil

Exercise | Q 1.12 | Page 64

Choose the correct answer:

The percentage of cuticular transpiration in plants is _____________

  • Approximately 10%

  • Approximately 20%

  • Approximately 25%

  • Approximately 30%

Exercise | Q 1.13 | Page 64

Choose the correct answer:

Transpiration generates __________

  • Suction force

  • capillary force

  • Imbibitions force

  • atmospheric pressure

Exercise | Q 1.14 | Page 64

Choose the correct answer:

Transpiration rate is low ____________

  • due to less surface area of leaf

  • benting of leaf

  • By sunken stomata

  • all of the above

Exercise | Q 1.15 | Page 64

Choose the correct answer:

Stomata can open in night also in _______________

  • xerophyte

  • gametophyte

  • hydrophyte

  • none of these

Exercise | Q 1.16 | Page 64

Choose the correct answer:

Who had said that "transpiration is a necessary evil"?

  • Curtis 

  • Steward 

  • Anderson 

  • J.C. Bose

Chapter 5: Transpiration

Exercise

Frank Frank Class 10 Biology Part 2

Frank Class 10 Biology Part 2 - Shaalaa.com

Frank solutions for Class 10 Biology chapter 5 - Transpiration

Frank solutions for Class 10 Biology chapter 5 (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 Frank Class 10 Biology Part 2 solutions in a manner that help students grasp basic concepts better and faster.

Further, we at Shaalaa.com provide such solutions so that students can prepare for written exams. Frank 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 5 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, Mechanism of Stomatal Transpiration, Adaptations in Plants to Reduce Transpiration.

Using Frank 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 Frank Solutions are important questions that can be asked in the final exam. Maximum students of CISCE Class 10 prefer Frank Textbook Solutions to score more in exam.

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