Phloem sap is mainly:-

1.  Water and osmotically inactive disaccharides only

2.  Water and PGRs only

3.  Water and osmotically active disaccharides 

4.  Minerals and PGRs only

Simple diffusion is not saturated because

1. There is no requirement of energy

2. There is no requirement of carrier protein

4. It occurs along the concentration gradient

4. More than one option is correct 

Select the incorrect statement regarding facilitated diffusion:-

1.  It is a very specific process

2.  It is a passive process

3.  It helps the hydrophilic substances to be transported across the membrane 

4.  It is faster than active process

What are the control points where a plant adjusts the quantity and types of solutes that reach the xylem?

1. Suberin deposited casparian strips

2. Transport proteins of endodermal cell

3. Sclerenchyma around the pericycle

4. The root hairs themselves

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

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 

Osmotic pressure is the

In germination of seed, what is absorbent?

Mass flow or bulk flow system is the movement of substances in bulk or en masse from one point to another point as a result of

Most of the movement in roots through apoplast is due to