Transpirational rate is controlled by

(1) Xylem

(2) Phloem

(3) Guard cell

(4) Leaves

Subtopic:  Epidermal Tissue System |
 91%
From NCERT
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The stomatal aperture, guard cell and the surrounding subsidiary cells are together called________.

(1) Stomata

(2) Stomatal apparatus

(3) Stomatal aperture

(4) Cuticle

Subtopic:  Epidermal Tissue System |
 90%
From NCERT
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In plant stem the epidermal hairs are called

(1) Cilia

(2) Trichomes

(3) Trichoderms

(4) Trichromes

Subtopic:  Epidermal Tissue System |
 93%
From NCERT
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Trichomes help in

(1) Preventing water loss

(2) Have sensory role

(3) Help in combating grazing animals

(4) None of the above

Subtopic:  Epidermal Tissue System |
 94%
From NCERT
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All tissue except ____________ constitute the ground tissue.

1. Epidermis

2. Vascular bundles

3. Both (1) and (2)

4. Cuticle

Subtopic:  Ground Tissue System |
 83%
From NCERT
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In leaves the ground tissue consist of thin walled chloroplast containing cells and is called____.

1. Mesophyll

2. Chlorophyll

3. P250

4. Chromophore

Subtopic:  Ground Tissue System |
 91%
From NCERT
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The vascular system in plant consist of

(1) Xylem and phloem

(2) Xylem parenchyma and cortex

(3) Epidermis and cortex

(4) None of the above

Subtopic:  Vascular Tissue System |
 95%
From NCERT
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In dicotyledonous stem _________ is present between phloem and xylem.

(1) Cork

(2) Cambium

(3) Connecting vessel

(4) Connecting tubes

Subtopic:  Dicot Stem |
 95%
From NCERT
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The presence of cambium possess the ability to form secondary xylem and phloem tissue and hence are called

(1) Open vascular bundle

(2) Closed vascular bundle

(3) Intermediate vascular bundle

(4) End node vascular bundle

Subtopic:  Vascular Tissue System |
 94%
From NCERT
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In monocotyledons the vascular bundle have no ________ present in them.

(1) Xylem

(2) Cambium

(3) Cork

(4) Phloem

Subtopic:  Vascular Tissue System |
 96%
From NCERT
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