Absorption by Root Hair

Q.

Root hair occur in the zone of:

1. Cell maturation

2. Root cap

3. Cell elongation

4. Cell division

Q. The function of the is to increase the surface area of the root system for efficient water absorption.

1. xylem
2. root hair
3. main root
4. lateral root

Q.

Which one of the following parts of a plant helps in the absorption of water and mineral salts from the soil?

1. Stem

2. Root hair

3. Leaf

4. None of the above

Q.

Cuticular transpiration occurs only in a day.

1. True
2. False

Q.

Water will be absorbed by root hair by

1. Osmosis

2. Transpiration

3. Evaporation

4. Active Transport

Q.

Why is the root hair one celled?

Q.

:Highest water potential is that of:

1. Pure Water

2. 5 percentage of salt solution

3. Honey

4. 80 percentage of salt solution

Q. The leaf of cactus is modified into spines to reduce transpiration.

1. False
2. True

Q. Which of the following are factors that affect transpiration?

1. Sunlight
2. Temperature
3. Humidity
4. Carbondioxide
5. Nitrogen
6. Plant's age
7. Soil nutrients
8. Wind speed

Q. The movement of water from the soil to the foliage in tall trees is primarily due to .

1. guttation
2. root pressure
3. transpiration
4. diffusion

Q. Transpiration is more through the lenticels than through the cuticles of a plant.

1. True
2. False

Q.

WHAT IS ROOT HAIR CELL?

Q. explain water absorbing organ of plant by roots

Q. Transpiration helps in heating up the plant's surface.

1. True
2. False

Q. is the pressure that helps in driving the fluids and other ions from the soil in upwards direction into the plant’s vascular tissue.

1. Osmotic pressure
2. Root pressure
3. Turgor pressure
4. Water pressure

Q.

Guard cells differ from other epidermal cells in having:

1. Mitochondria

2. Vacuoles

3. Cell Wall

4. Chloroplasts