The diffusion of water across a selectively permeable membrane is called:
Active transport
Facilitated diffusion
Osmosis
Plasmolysis
Related Questions
Read carefully the following statements and choose the right answer from the options given below
I. Diffusion is a slow process and it do not depends upon the living system
II. Usually process of diffusion does not need energy
III. Diffusion can occur from one part of a cell to another part of the same cell or from one cell to another and from one tissue to another tissue
IV. Diffusion is a rapid process over short distance, but extremely slow over long distances
I and III
I and II
III and IV
I, II, III and IV
Movement of molecules takes place along the concentration gradient in
Simple diffusion
Facilitated diffusion
Active transport
Both 1 and 2
Movement of molecules takes place along the concentration gradient in
Simple diffusion
Facilitated diffusion
Active transport
Both 1 and 2
Which factor does NOT influence the rate of diffusion?
Temperature
Concentration gradient
Size of the particles
Amount of solvent
Following statements are related with the diffusion of coloured molecules across a membrane. Select the correct statement, which shows the fastest rate of diffusion?
An internal concentration of 15% and external concentration of 10%
An internal concentration of 25% and external concentration of 50%
An internal concentration of 50% and external concentration of 25%
Both (2) and (3) shows fastest rate of diffusion
Root hair absorb water from the soil on account of
Turgor pressure
Osmotic pressure
Suction pressure
Root pressure
Why the rate of diffusion of a substance along the concentration gradient does not increase continuously, while the concentration difference of the molecules across the membrane increases?
Process of facilitated diffusion need ATP
As concentration difference increases, molecule interfere with one another
100% saturation of carrier protein after some time
Transport proteins must be of channel protein type
Graham’s law is correlated with
Diffusion
Osmoregupation
Osmosis
Absorption
The diffusion of water across a selectively permeable membrane is called:
Active transport
Facilitated diffusion
Osmosis
Plasmolysis
Read carefully the following statements and choose the right answer from the options given below
I. Diffusion is a slow process and it do not depends upon the living system
II. Usually process of diffusion does not need energy
III. Diffusion can occur from one part of a cell to another part of the same cell or from one cell to another and from one tissue to another tissue
IV. Diffusion is a rapid process over short distance, but extremely slow over long distances
I and III
I and II
III and IV
I, II, III and IV
