Question

According to pressure flow theory, which of the following serves as sink.
a) Leaves
b) Stem
Roots
d) None of the above.
с​

Answer 1

Answer:

stem

i guess im not sur but still

Answer 2

Answer:

roots

Explanation:

• sink means place where assimilates(food) are stored or used for growth.
• source means place where food is prepared i.e, photosynthesis.
• leaves acts as source because food is prepared in them.
• roots acts as both sink and source.
• stem(phloem) is connecting bridge between source and sink.
• ✓✓*******during summer, leaves - source and roots - sink.(mostly follow this).
• during autumn/spring, leaves - sink and roots - source.

hope it helps...