PLANT PHYSIOLOGY
TRANSPORT IN PLANT
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
uptake of water by root cells depends on osmosis.
|
|
|
upward movement of water depends on transpiration pull.
|
|
|
enzymes are not involved in the uptake and transport of water across the plant.
|
|
|
xylem is involved and it is a dead tissue.
|
Detailed explanation-1: -The root pressure is also responsible for the upward movement of water in the plants. It is mainly due to the osmotic pressure in the root cells that force the water to move upwards.
Detailed explanation-2: -Transpiration pull or the suction force is the force which aids in drawing the water upward from roots to leaves.
Detailed explanation-3: -If the surrounding temperature of a plant increases, more water molecules will evaporate from the mesophyll, This increases the rate of diffusion of water from the leaf. When the light intensity is higher, the stomata open wider to allow more carbon dioxide into the leaf for photosynthesis.
Detailed explanation-4: -The four main environmental factors can affect the rate of transpiration: light, temperature, humidity, and air. With the increase in the amount of water transpired, more water will flow through the plant.