@⇒ Transport of molecules in plant ⇒ Biotechnology ⇒ Medical Science Engineering Multiple Choice Questions / Objective type questions, MCQ's, with question and answers, download free PDF, short cut notes, rapid fire notes, best theory

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Q1.	Phloem is composed of
A.	vessel elements and companion cells [Wrong Answer]
B.	tracheids and vessel elements [Wrong Answer]
C.	sieve-tube elements and companion cells [Correct Answer]
D.	tracheids and sieve-tube elements [Wrong Answer]
View Answer 1 -1 Explanation:- Answer : C Discuss it below : Click here for more comments


Q2.	The cohesion-tension theory of water movement helps to explain how water moves from soil into root?
A.	Through the phloem [Wrong Answer]
B.	From leaf to root [Wrong Answer]
C.	Through the xylem [Correct Answer]
D.	Into the guard cells [Wrong Answer]
View Answer 1 -1 Explanation:- Answer : C Discuss it below : Click here for more comments


Q3.	The evaporation of water from leaves is called
A.	transpiration [Correct Answer]
B.	cohesion [Wrong Answer]
C.	tension [Wrong Answer]
D.	pressure flow [Wrong Answer]
View Answer 1 -1 Explanation:- Answer : A Discuss it below : Click here for more comments


Q4.	A widely accepted explanation for transport of sugar in phloem is called
A.	root pressure theory [Wrong Answer]
B.	transpiration [Wrong Answer]
C.	pressure flow hypothesis [Correct Answer]
D.	cytoplasmic streaming [Wrong Answer]
View Answer 1 -1 Explanation:- Answer : C Discuss it below : Click here for more comments


Q5.	Water moves into roots of plants by
A.	osmosis [Correct Answer]
B.	active transport [Wrong Answer]
C.	diffusion [Wrong Answer]
D.	pressure flow mechanism [Wrong Answer]
View Answer 1 -1 Explanation:- Answer : A Discuss it below : Click here for more comments

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