Which of the following statements is not true for stomatal apparatus?

1. Inner walls of guard cells are thick

2. Guard cells invariably possess chloroplasts and mitochondria

3. Guard cells are always surrounded by subsidiary cells

4. Stomata are involved in gaseous exhange

Subtopic:  Epidermal Tissue System |
From NCERT
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Dicot stem share a common feature with monocot stem that is both have

1. Well developed large pith

2. Conjoint vascular bundles

3. Open vascular bundles

4. Pericycle and endodermis

Subtopic:  Dicot Stem | Monocot Stem |
 70%
From NCERT
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Identify the wrong statement in the context of cork cambium

1. Cork cambium is also called phellogen

2. Cork cambium is usually developed from the secondary xylem

3. Outer cells of phellogen differentiate into cork

4. Inner part of phellogen leads to the formation of phelloderm

Subtopic:  Activity of Cork Cambium |
 77%
From NCERT
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Water containing cavities in the vascular bundle
is a characteristics feature of

1. Dicot roots

2. Monocot stems

3. Monocot leaves

4. Dicot stems

Subtopic:  Monocot Stem |
 74%
From NCERT
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Which of the following is related to tracheids?

(1) Deposition of suberin on cell wall

(2) Found in gymnosperms only

(3) Dead cell without protoplsm

(4) Helps in radial conduction of water

Subtopic:  Complex Tissue: Xylem |
 78%
From NCERT
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All of the given characteristics are related to parenchyma tissue except

1. Composed of living cells

2. Generally isodiametric cells

3. Cell wall is mainly made up of suberin

4. Either closely packed cells with no intercellular spaces or have small intercellular spaces

Subtopic:  Simple Tissue: Parenchyma |
 88%
From NCERT
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A plant tissue, when stained, showed the presence of hemicellulose and pectin in the cell walls of its cells. The tissue represents

1. collenchyma

2. sclerenchyma

3. xylem

4. meristem

 

Subtopic:  Simple Tissue: Chollenchyma & Sclerenchyma |
 94%
From NCERT
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The stomata are equally distributed on both the surfaces of the epidermis in

1. Dorsiventral leaf

2. Dicot stem

3. Isobilateral leaf

4. Dicot root

Subtopic:  Monocot Leaf |
 90%
From NCERT
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Which of the following plays an important role in lateral root growth in dicot root?

1. Endodermis

2. Pericycle

3. Hypodermis

4. Intrafascicular cambium

Subtopic:  Anatomy of Root |
 78%
From NCERT
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Match the following and choose the correct option from below

A

Cuticle

i.

Guard cells

B

Bulliform cells

ii.

Single layer

C

Stomata

iii.

Waxy layer

D

Epidermis

iv.

Empty colourless cell

Options:

1.

A-iii

B-iv

C-i

D-ii

2.

A-i

B-ii

C-iii

D-iv

3.

A-iii

B-ii

C-iv

D-i

4.

A-iii

B-ii

C-i

D-iv

Subtopic:  Epidermal Tissue System |
 91%
From NCERT
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