Question

At the sink, incoming sugars are passively transported................ the phloem.

• A. towards
• B. through
• C. out of
• D. into

Answer 1

The correct option is C out of

• The mechanism by which sugars are transported through the phloem from the source to sink is called pressure flow.
• Sink is where sucrose is not synthesized but utilized and stored. The osmotic gradient is always higher in the phloem as compared to the sink so it is passively transported from phloem tissue to sink
• The correct answer is OPTION C.