Water in plants is transported by
cambium
phloem
xylem
epidermis
B.
phloem
The water absorbed by root hairs is transported to other parts of the plant through xylem. Phloem transfers food prepared in leaves to the other parts. Cambium is responsible for secondary growth while epidermis is the outermost protective layer of cells.
Most accepted theory for ascent of sap is
capillary theory
root pressure theory
pulsation theory
transpiration pull
Which of the following theory gives the latest explanation for the closure of stomata?
ABA theory
Munch Theory
Starch glucose theory
Active K+ transport theory
Transpiration would be lowest when
wind velocity is high
enough water is in the soil
atmospheric RH is high
high temperature and light
Which of the following exhibits a direct porportionality to transpiration
Light and RH
Temperature and RH
Temperature and wind
RH and wind
The most important force which pulls water up in tall trees is
imbibition force
osmotic force
cohesive force
electromagnetic force
The light phase of photosynthesis is called
Hill reaction
photo action
pigment action
chlorophyllous process
