Long Distance Transport of Water

IMPORTANT

Long Distance Transport of Water: Overview

This Topic covers sub-topics such as Guttation, Hydathode, Water Transport through Xylem, Long Distance Transport of Water, Cohesion-Tension-Transpiration Pull Model and, Hydrostatic Pressure Gradient

Important Questions on Long Distance Transport of Water

EASY
IMPORTANT

What are the difference between guttation and imbibition?

EASY
IMPORTANT

Mass flow is the movement of substances in bulk as a result of pressure differences between two regions? It is seen for

MEDIUM
IMPORTANT

Match List - I with List - II.

List-I List-II
(a) Cohesion (i) More attraction in liquid phase
(b) Adhesion (ii) Mutual attraction among water molecules
(c) Surface tension (iii) Water loss in liquid phase
(d) Guttation (iv) Attraction towards polar surfaces

HARD
IMPORTANT

Which of the following is not take part in the ascent of sap through the xylem in tall plants?

EASY
IMPORTANT

Guattation is due to

MEDIUM
IMPORTANT

Guttation only occurs in

EASY
IMPORTANT

The structures involved in the process of guttation are:

HARD
IMPORTANT

A submarine has a window of area 30×30 cm2 on its ceiling and is at a depth of 100 m below sea level in a sea. If the pressure inside the submarine is maintained at the sea-level atmosphere pressure, then the force acting on the window is (consider density of sea water =1.03×103 kg m-3 acceleration due to gravity =10 m s-2):

EASY
IMPORTANT

Which one of the following anatomical structures is involved in guttation?
 

EASY
IMPORTANT

Attraction of water molecules to polar surface called

EASY
IMPORTANT

In plants, long distance transport of organic and inorganic substances occurs through 

EASY
IMPORTANT

During guttation, the oozed liquid contains:

EASY
IMPORTANT

Guttation differs from transpiration in which aspect?

EASY
IMPORTANT

The given diagram is of 

Question Image

EASY
IMPORTANT

The process responsible for facilitating loss of water in liquid form from the tip of grass blades at night and in early morning is

EASY
IMPORTANT

 Which of the process is responsible for loss of sugars and salts from plants?

EASY
IMPORTANT

Guttation is found mostly in

EASY
IMPORTANT

Absorption of water by root is increased with the

EASY
IMPORTANT

________ conducts water absorbed by roots to the leaves.
 

EASY
IMPORTANT

The continuity of water column in the xylem is maintained due to: