Biology Transport in Plants ( Not In Syllabus ) Phloem Transport: Flow from Source to Sink Single Correct MCQ
Published on: August 11, 2026

Identify true and false statements and select the correct option from the codes given below.

(I) As suction pressure increases, water absorption also increases, which in turn increases the absorption of

ions.

(II) Absorption of ions is affected by transpiration pull.

(III) Large amount of charged particles is absorbed along with absorption of water.

(IV) Pressure flow hypothesis depends entirely on the existence of mechanism for loading sugars into phloem

at the source region and unloading of it at the sink.

(V) Contents in the sieve tube move unidirectionally.

A
I, II, III and IV are true, while V is false
B
I, III, IV and V are true, while II is false
C
I, II, IV and V are true, while III is false
D
II, III, IV and V are true, while I is false

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