NEET Biology question
Not in NEET syllabus
Arrange the following events of mass flow of organic material in sequence. I. Sugars are transported from cell to cell in the leaf II. Food is synthesised in the form of glucose by leaf cells III. Movement of water takes place into sieve tube elements IV. Downward movement of sugar occurs in the stem V. Solutes are actively transported into the sieve elements
Answer: (B)
Solution
The correct sequence is: food (glucose) is first synthesised by leaf mesophyll cells (II); sugars then move cell-to-cell within the leaf toward the sieve tubes (I); sugars are actively transported (loaded) into the sieve elements (V); this
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