Transport in plants practice · Medium

The potential energy of water is referred as

During ${Na}^{+}-{K}^{+}$ pump:

If two solutions have the same osmoregularity, they are said to be

Which of the following is responsible for the transport of water and minerals from roots to stems, leaves, flowers and fruits in rooted plants?

In plasmolysed cell, the space between nucleus and plasma membrane is occupied by

Water channels are made up of how many different types of aquaporins?

Choose correct statements regarding the flow of sap in xylem?
I. Flow is driven by higher concentration of sugar in the vessel elements
II. Flow from root to twigs and leaves would be reduced if leaves are removed
III. In the morning, sap begins to flow first in the twig then in trunk
IV. Rapid flow of water put tissues under pressure much more than atmospheric pressure

In apoplast path way, water moves exclusively through the?

What are the location of casparian strips-which interrupts the movement of water inside a root?

In plants; which of the following are/is translocated through phloem?

Which of the following is not correct regarding carrier molecules, involved in facilitated diffusion?

Consider the following statements and choose the correct answer from the options given below
I. A dry live seed still contains water
II. A mature maize plant absorbs about 3 L water per day
III. A mustard plant take up water equal to its weight in about five hours
IV. Water is not considered as the limiting factor for plant growth and productivity

Cell wall present in water conducting tissues, represented by swollen nodules, is known as

A boy is studying transport of a certain type of molecules into cell. He finds that transport slows down when the cells are poisoned with a chemical that inhibits energy production. Under normal circumstances, the molecules studied by the boy is probably transported by.

Water will move from a region of higher water potential to a region of

Which one of the following denotes the water potential of the mesophyll cell in wilted condition?

Select the correct events leading to the opening of the stomata. I.Decline in guard cell solutes.
II.Lowering of osmotic potential of guard cells. III.Rise in potassium levels in guard cells.
IV.Movement of water from neighbouring cells into guard cells. V.Guard cells becoming flaccid

A soil sample is found to have 25% of its volume occupied by soil water. Of this, 10% is hygroscopic water and the remaining is capillary water. What is the field capacity of this soil?

Three dicot leaves A, B and C are collected. Lower surface of A, upper surface of B and both surfaces of C are coated with was. Which wilt first?

Ascent of sap in plants was demonstrated by

When a cell is plasmolysed, it becomes

Diffusion pressure deficit is also called

Arrange the events of opening stomata in correct sequence and choose the correct option accordingly I. Lowering of osmotic potential of guard cells II. Decline in guard cell solute III. Rise of potassium ion level in guard cells IV. Guard cells absorb water from neighbouring epidermal cells V. Guard cells become flaccid VI. Guard cells swells and make a pore between them

Which one of the following is not related to guttation?

Drough avoiding plants are

Long distance transport of substances is called

Which one of the following acts as a barrier in a apoplastic pathway?

Cell A and Cell B are adjacent plant cells. In cell A, ${\psi _s} = - 20$ bars and ${\psi _p} = 8$ bars. In cell B, ${\psi _s} = - 12$ bars and ${\psi _p} = 2$ bars. Then

Water potential of a solution is?

Diffusion, a process occur(s) along the concentration gradient is actively involved in