Question

Given below are two statements:
Statement (I): Due to endo-osmosis water from surrounding cells and xylem, is absorbed.
Statement (II): Due to decrease in turgor pressure, sugar from photosynthetic cell is forced ultimately into sieve tube of vein
In light of the above statements, choose the most appropriate answer from the options given below with reference to mechanism of sugar transport through phloem.

• A. Both Statement (I) and Statement (II) are correct.
• B. Both Statement (I) and Statement (II) are incorrect.
• C. Statement (I) is correct but Statement (II) is incorrect
• D. Statement (I) is incorrect but Statement (II) is correct.

Hint:

Water enters by endosmosis and raises turgor pressure; this high turgor pushes sugar into the sieve tube.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept
Phloem transport is explained by the Munch pressure flow hypothesis.

Step 2: Statement (I)
At the source, sugar raises the solute concentration, so water enters the sieve tubes from nearby cells and xylem by endosmosis. Statement (I) is correct.

Step 3: Statement (II)
Entry of water raises the turgor pressure, which pushes the sugar solution into the sieve tubes. It is not a decrease in turgor pressure, so Statement (II) is incorrect.

Final Answer:
Statement (I) is correct but Statement (II) is incorrect. \[ \boxed{\text{(C) }\text{Statement (I) is correct but Statement (II) is incorrect}} \]