Guttation and Bleeding.

Q. Difference between transpiration and translocation

Q.

Loss of water from the plants in liquid form happens through the process of

1. Transpiration

2. Photosynthesis

3. Guttation

4. Bleeding

Q.

Discuss the role of cobalt chloride paper while performing the experiment to demonstrate the process of transpiration.

Q.

Write one main function of hydathodes.

Q.

Loss of water from the plants in the form of vapour state is known as

1. Imbibition

2. Transpiration

3. Translocation

4. Transportation

Q. Three plants A, B and C are placed in beakers containing coloured water. The water in each beaker is covered with a layer of oil. The leaves were removed from plant B, while plant C was exposed to a strong light. [5 MARKS]

(a) In which plant A, B or C, would the water move up fastest? Give a suitable reason for your answer.
(b) In which plant would water move slowly?
(c) Why is the water covered with oil?
(d) What is being investigated in this experiment?

Q. a) Define transpiration stream.
b) Write three points of difference between transpiration and perspiration. [5 MARKS]

Q. Plants dont have blood then also they are said to bleed . Explain .

Q.

What is the potometer used for?

Q. ___ is the term used for loss of water in vapour form from aerial part of the plants.

1. Photosynthesis
2. Respiration
3. Transpiration
4. Translocation

Q. Case: Transpiration is the evaporative loss of water by plants. It occurs mainly through the stomata in the leaves. Besides the loss of water vapour in transpiration, exchange of oxygen and carbon dioxide in the leaf also occurs through pores called stomata. Normally stomata remain open during the day and close at night.

Based on the above case answer the following question:

Which of the following will not directly affect the rate of transpiration?

1. Temperature
2. Wind speed
3. Light intensity
4. Chlorophyll content of leaves

Q.

Which of the following label indicates glomerulus?

1. D

2. A

3. C

4. B

Q.

___ present in the margins of leaves allows exudation of water.

1. Hydathodes

2. Lenticels

3. Stomata

4. Cuticle

Q.

Calcium chloride paper is used to demonstrate transpiration.

1. True
2. False

Q.

Which of the following is/are the characteristic feature of guttation?

1. May cause wilting.

2. Water vapor is lost through stomata, lenticels, and cuticle.

3. It occurs in the presence of sunlight.

4. Water lost contains minerals salts in solution.

Q.

Raphide is not a fruit because-

1. Basement membrane

2. Fenestrations in the wall of glomerulus

3. Filtration slits between podocytes

4. Renal tubules

Q.

Which of the following is not a natural process occuring in plants?

1. Bleeding

2. Guttation

3. Respiration

4. Transpiration

Q.

Define guttation

Q.

Mention one significance of high turgor pressure to stomata.

Q. What would happen if solutions were poorly aerated in hydroponics?

Q. Differentiate between transpiration and guttation.

Q.

Transpiration is the loss of water from the surfaces of a plant. Which of the following statements describe(s) why transpiration is useful for plants?

I. It gets rid of excess water, protecting plant cells from bursting.

II. It cools the plant down, preventing overheating on sunny days.

III. It enables the mass flow of inorganic nutrients and water up the plant body.

1. Only I

2. I and III

3. II and III

4. I, II and III

Q. The diagram below represents a process in plants. The setup was placed in bright sunlight. Answer the following questions:



(i) Name the physiological process depicted in the diagram. Why was oil added to the water?

(ii) When placed in bright sunlight for four hours, what do you observe with regards to the initial & final weight of the plant? Give a suitable reason for your answer.

(iii) What happens to the level of water when this setup is placed in:

(a) Humid Conditions
(b) Windy Conditions

(iv) Mention any three adaptations found in plants to overcome the process mentioned in (i).

(v) Explain the term "Guttation".

Q.

Glycerin and scents are used in the manufacture of lotions.

1. True
2. False

Q.

Name the following:

An instrument used to measure rate of transpiration.

Q. How does guttation differ from transpiration?

Q. Guttation differs from transpiration because

1. It is controlled by stomatal movements
2. Water is released in vapour form
3. It occurs during day time
4. Water is exudated in liquid form

Q.

What is transpiration and how does it occur?

Q. If the absorption is more and transpiration is less then process affected will be

1. Root pressure
2. Guttation
3. Bleeding
4. All of the above

Q. Which one of the following is not related to guttation?

1. Water is given out in the form of droplets
2. Water is given out early morning
3. Water given out is impure
4. Guttation is of universal occurrence