Molecules moves across a membrane independent of other molecules, by the means of membrane protein, the process is called 

1. Biport 
2. Symport 
3. Uniport 
4. Antiport 

Substances which are soluble in lipids…….a…...But which have a hydrophilic moiety……..b……

1. a- move slowly

2. a- move similarly as that of others

3. b- move faster

4. a- move faster

Identify the incorrect match 

1. c & d

2. a, c, & d

3. c, d & e

4. b, c & d

Facilitated transport differs from active transport as the former

1.  Transports saturates.

2.  Response to protein inhibitors.

3.  Requires special membrane proteins.

4.  Shows downhill transport.

What is correct about the movement of substances across the membrane in facilitated diffusion?

1. It is an active transport.

2. It causes the transport of molecules from low concentration to high concentration.

3. It is insensitive to inhibitors.

4. It is a very specific transport.

How many of the following statements are correct?
(i) In plants each organ receiving some substances & giving out some others.
(ii) Water channels are made up of eight different types of aquaporins.
(iii) Water is often a limiting factor for plant growth & productivity in both agricultural & Natural environments.
(iv) Imbibition is also diffusion.

Options:
1. All the above
2. (i), (ii) & (iv)
3. (ii), (iii) & (iv)
4. (iii) & (iv)

Which one of the following is incorrect regarding faciliated diffusion :-

(1) Selective nature

(2) Dependent on energy

(3) Transport Saturation

(4) Requirement of protein