What is the number of correct statements from those given below?

I: Primary xylem is endarch in roots
II: Phloem parenchyma is present in most of the monocots.
III: Phloem fibers are generally absent in the primary phloem.
IV: Companion cells are collenchymatous cells.
V: Angiosperms lack vessels in their xylem.

 
1. 0
2. 1
3. 2
4. 3

Subtopic:  Complex Tissue: Xylem | Complex Tissue: Phloem |
 54%
Level 3: 35%-60%
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Which of the following cell type of vascular tissue system of plants is not correctly matched with its function?

Cell type Function
1. Tracheid Chief water conduction element in gymnosperms
2. Vessel element Chief water conduction element in angiosperms
3. Sieve cell Food conduction element in angiosperms
4. Albuminous cell Delivery of substances to sieve cells
Subtopic:  Complex Tissue: Phloem |
 54%
Level 3: 35%-60%
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Read the following statements and find out the correct set of statements:
A. Companion cells help in maintaining the pressure gradient in the sieve tubes.
B. Gymnosperms lack vessels in their xylem
C. The xylem vessels are devoid of cytoplasm
D. Xylem fibres may be septate or aseptate
E. A mature sieve element in phloem possesses cytoplasm, vacuole and nucleus.
Choose the correct answer from the options given below:
1. B, C, D, E only 2. A, B, D, E only
3. A, B, C, D only 4. C, D, E only 
Subtopic:  Complex Tissue: Xylem | Complex Tissue: Phloem |
 72%
Level 2: 60%+
NEET - 2024
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