Types of Transpiration.

Q.

Give reason: Why green leaves are thin and broad.

1. Green leaves are thin and broad to increase the surface area for absorption of light and carbon dioxide.

2. Green leaves are thin and broad to increase the transpiration rate.

3. Green leaves are thin and broad to ensure that transpiration rate is reduced.

4. None of these.

Q. what is periphery in the case of plants

Q. Match the type of transpiration with the region where it happens.
$\begin{array}{cc}\text{Diseases}& \text{Symptoms}\\ \text{A)}\text{Stomatal}& 1)\text{Waxy layer on leaves}\\ \text{B)}\text{Cuticular}& 2)\text{Pores on the leaves}\\ \text{C)}\text{Lenticular}& 3)\text{Opening in stem}\end{array}$

1. A - 1, B - 2, C - 3
2. A - 1, B - 3, C - 2
3. A - 2, B - 3, C - 1
4. A - 2, B - 1, C - 3

Q.

Name the following:

Permanently open structures seen on the bark of an old woody stem.

Q. Match the type of transpiration with the region where it happens.

1. Pores on the leaves
2. Waxy layer on leaves
3. Opening in stem

Q. Name the process by which water vapour is lost from stomata.

1. Diffusion
2. Exosmosis
3. Endosmosis
4. Imbibition

Q. Presence of moisture turns the colour of cobalt choride paper into __________

1. Blue
2. Green
3. Pink
4. Red

Q. Name the set-up used to measure rate of transpiration.

1. Photometer
2. Potometer
3. Thermometer
4. Barometer

Q. Match the type of transpiration with the region where it happens.

1. Waxy layer on leaves
2. Opening in stem
3. Pores on the leaves

Q. Match the process with the structures through which it occurs.

1. Guttation
2. Transpiration
3. Bleeding

Q. Maximum amount of transpiration occurs through _________.

1. Lenticels
2. Hydathodes
3. Cuticle
4. Stomata

Q.

Select the types of transpiration occurring in plants.

1. Stomataltranspiration

2. Lenticular transpiration

3. Cuticular transpiration

4. Guttation