Sinks in plants includes……
a) mesophyll tissue
b) storage tissue
c) site of food utilization (growing tips etc)
d) collenchymas tissue
The food in plant is transported in the form of
a) glucose
b) fructose
c) starch
d) sucrose
At source site, food (sucrose) enters the sieve tubes of the phloem tissue by…….
a) diffusion
b) osmosis
c) active transport
d) phagocytosis
Which of the following cells provide ATP energy for the active transport of sucrose in sieve tubes of phloem?
a) tracheids
b) companion cells
c) mesophyll cells
d) all of these
Due to higher solute concentration in sieve tubes than the nearby xylem tissues, water flows into the sieve tubes by……
a) diffusion
b) osmosis
c) active transport
d) pinocytosis
When the turgor pressure increases in sieve tubes, the solution of food flows toward the….
a) sink
b) source
c) root
d) stem
