Phloem in angiosperm is composed of
a. Sieve tube element
b. Companion cell
c. Phloem parenchyma
d. Phloem fibres
e. Tracheids
f. Vessels
1. a,b,c,d
2. b,c,d,e
3. c,d,e,f
4. None

Subtopic:  Complex Tissue: Phloem |
 88%
From NCERT
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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 |
 88%
From NCERT
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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 |
 94%
From NCERT
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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 |
 92%
From NCERT
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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 |
 80%
From NCERT
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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 |
 91%
From NCERT
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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 |
 82%
From NCERT
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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 |
 86%
From NCERT
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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 |
 92%
From NCERT
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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 |
 74%
From NCERT
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