Biology Unit-7 Test

Root hair are the extensions of:

Which of the following pathway of water conduction is interrupted by endodermis?

It separates extracellular space in root into two compartments:

It is the main factor that is involved in uptake of water to aerial parts of plants:

If a plant absorbs 10 liters of water per day, then what will be the amount of water used by the plant for its metabolism?

In plants, facilitated diffusion helps in the transport of minerals across the cell membrane by using:

It is the attraction among water molecules which holds them together within the xylem tube:

Stomata open due to __________of K⁺ into guard cell.

The hormone which reduces the rate of transpiration by stopping K⁺ influx into the guard cells:

All environmental factors are sensed by guard cell except: