Transpiration vs Evaporation.

Q.

Does transpiration occur at night?

Q.

Explain transportation of water in plants.

Q.

"Transpiration is a necessary evil" Justify the statement.

Q.

Question 37
If a potted plant is covered with a glass jar, water vapour appear on the wall of glass jar. Explain why?

Q.

What happens when a plant is losing too much water through transpiration?

Q.

Differentiate between Stomatal transpiration and Lenticular transpiration.

Q.

State whether the following statements are true or false.

More transpiration occurs from the under surface of a dicot leaf.

1. True
2. False

Q. Distinguish between transpiration and rainfall

Q. (a) List factors affecting the rate of transpiration.
(b) How do light, wind, and humidity affect the rate of transpiration? [4 MARKS]

Q.

Why do people sprinkle water on a roof after a hot summer day?

Q.

Does transpiration need sunlight?

Q.

_____________ is the loss of water from the surface of the water bodies in the form of water.

1. Transpiration

2. None of these

3. Evaporation

4. Guttation

Q.

Identify the two forces acting on the points A and B during the movement of water from roots to the aerial parts.

1. A: Root pressure; B: Transpiration pull

2. A: Evaporation; B: Translocation

3. A: Transpiration pull; B: Root pressure

4. A: Transpiration pull; B: Active transport

Q.

_______________ can be proved by an experiment in which pieces of dry cobalt paper attached to the two surface of the leaf.

1. more transpiration occurs from upper surface

2. more transpiration occurs from both upper and lower surface

3. more transpiration occurs from lower surface

4. transpiration is not taking place

Q.

Which of the following statement is true for evaporation and transpiration process?

1. Evaporation is faster than transpiration.

2. Transpiration is faster than evaporation.

3. Both are slow processes.

4. Both are fast processes.

Q.

Loss of water in the guard cells makes them _______.

1. turgid

2. rigid

3. cupid

4. flaccid

Q.

Mention one major difference between lenticular transpiration and stomatal transpiration.

Q. Differentiate between transpiration and evaporation.

Q. Which of the following does not help in the ascent of sap?

1. Adhesion
2. Cohesion
3. Flaccidity
4. Capillarity

Q.

Evaporation reduces temperature of __ surface.

Q.

Temperature and humidity of the atmosphere affect the rate of:

1. Transpiration

2. Evaporation

3. Growth

4. Falling of the leaves

Q.

Evaporation is _____________ process.

1. endothermic

2. exothermic

3. heating

4. reversible

Q. Differentiate between the following :

Q.

Transpiration process is slower than evaporation.

1. True

2. False

Q.

Which of the following statements define evaporation?

1. Loss of water from the surface of water bodies

2. It mostly occurs in cooler temperatures

3. Partly a physical process

4. Physical change controlled by temperature and humidity of the atmosphere

Q.

Appu washed two bedsheets and wanted to dry them. He took the first wet bed sheet, opened it fully and put it in the sun. He folded the second wet bedsheet and put it out to dry. After one hour, what do you think he found regarding whether they were wet or dry? Choose the most probable option.

1. Both bedsheets were fully wet.

2. Both bedsheets were equally dry.

3. First bedsheet was fully dry while the inner folds of the second bedsheet were still wet.

4. Some part of the first bedsheet was wet while the second bedsheet dried completely.

Q. What is atmometer?

Q. Transpiration differs from evaporation in

1. Rate of water loss
2. Frequency of water loss
3. Transpiration is a physiological process while evaporation is a physical process
4. Transpiration is a physical process while evaporation is a physiological process