Phloem of gymnosperm consist of

(1) Albuminous cells and Sieve cells

(2) Sieve tubes and companion cells

(3) Phloem parenchyma and phloem fibres

(4) None of the above

Subtopic:  Complex Tissue: Phloem |
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Function of sieve tubes are controlled by

(1) Nucleus of sieve tube

(2) Nucleus of companion cell

(3) Nucleus of parenchyma

(4) No function as they are dead cells

Subtopic:  Complex Tissue: Phloem |
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The companion cells help in maintaining the ________ in the sieve tube.

(1) Temperature gradient

(2) Cellulose gradient

(3) Pressure gradient

(4) Ion gradient

Subtopic:  Complex Tissue: Phloem |
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Resin, latex and mucilage are found in

(1) Phloem parenchyma

(2) Xylem parenchyma

(3) Phloem pits

(4) None of the above

Subtopic:  Complex Tissue: Phloem |
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Phloem parenchyma is absent in most of the

(1) Dicotyledons

(2) Monocotyledons

(3) Desert plants

(4) None of the above

Subtopic:  Complex Tissue: Phloem |
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Phloem fibres are made up of

(1) Parenchymatous cells

(2) Sclerenchymatous cells

(3) Collenchymatous cells

(4) None of the above

Subtopic:  Complex Tissue: Phloem |
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NEET 2021 - Achiever Batch - Aryan Raj Singh
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Which component of Jute, Flax and Hemp are commonly used?

(1) Phloem fibres

(2) Xylem fibres

(3) Sieve tubes

(4) All of the above

Subtopic:  Complex Tissue: Phloem |
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NEET 2021 - Achiever Batch - Aryan Raj Singh
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Epidermis in plant is generally

(1) Single layered

(2) Double layered

(3) Triple layered

(4) Present in patches

Subtopic:  Epidermal Tissue System |
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Epidermal cells are parenchymatous with __________ amount of cytoplasm lining, the cell wall and _______ vacuole.

(1) Small, large

(2) Large, small

(3) Small, no

(4) Large, no

Subtopic:  Epidermal Tissue System |
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A waxy thick layer which prevent water loss is

(1) Cuticle

(2) Guard cell

(3) Epidermis

(4) Stomata

Subtopic:  Epidermal Tissue System |
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NEET 2021 - Achiever Batch - Aryan Raj Singh
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