1
NEET 2017
MCQ (Single Correct Answer)
+4
-1
Which of the following is made up of dead cells ?
A
Collenchyma
B
Xylem parenchyma
C
Phellem
D
Phloem
2
NEET 2017
MCQ (Single Correct Answer)
+4
-1
Identify the wrong statement in context of heartwood :
A
It is highly durable.
B
It comprises dead elements with highly lignified walls
C
It conducts water and minerals efficiently
D
Organic compounds are deposited in it
3
NEET 2017
MCQ (Single Correct Answer)
+4
-1
Root hairs develop from the region of :
A
Meristematic activity
B
Root cap
C
Maturation
D
Elongation
4
NEET 2016 Phase 2
MCQ (Single Correct Answer)
+4
-1
The balloon-shaped structures called tyloses
A
are extensions of xylem parenchyma cells into vessels
B
originate in the lumen of vessels
C
are linked to the ascent of sap through xylem vessels
D
characterize the sapwood
NEET Subjects
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Medical
NEET
Graduate Aptitude Test in Engineering
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CBSE
Class 12