The transverse section of a plant shows following anatomical features :

a. Large number of scattered vascular bundles surrounded by bundle sheath. 

b. Large conspicuous parenchymatous ground tissue.

c. Vascular bundles conjoint and closed.

d.  Phloem parenchyma absent. 

Identify the category of plant and its part : 

1. Monocotyledonous root 

2. Dicotyledonous stem 

3. Dicotyledonous root 

4. Monocotyledonous stem 

Subtopic:  Monocot Stem |
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Identify the incorrect statement.

1. Sapwood is involved in conduction of water and minerals from root to leafs.

2. Sapwood is the innermost secondary xylem and is lighter in colour

3. Due to deposition of tannins, resins, oils etc., heart wood is dark in colour.

4. Heart wood does not conduct water but gives mechanical support.

Subtopic:  Activity of Vascular Cambium |
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Large, empty colorless cells of the adaxial epidermis along the veins of grass leaves are

1. Lenticels

2. Guard cells

3. Bundle sheath cells

4. Bulliform cells

Subtopic:  Monocot Leaf |
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Which of the following statements about cork cambium is incorrect?

1. It forms a secondary cortex on its outside

2. It forms a part of periderm

3. It is responsible for the formation of lenticels

4. It is a couple of layers thick

Subtopic:  Activity of Cork Cambium |
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Regeneration of damaged growing grass following grazing is largely due to :

1. Lateral meristem

2. Apical meristem

3. Intercalary meristem

4. Secondary meristem

Subtopic:  Meristematic Tissue:Classification |
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In the dicot root, the vascular cambium originates from :

1. Tissue located below the phloem bundles and a portion of pericycle tissue above protoxylem

2. Cortical region

3. Parenchyma between endodermis and pericycle

4. Intrafascicular and interfascicular tissue in a ring

Subtopic:  Anatomy of Root |
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Given below is the diagram of a stomatal apparatus. In which of the following, all the four parts labelled as A, B, C and D are correctly identified –

 

          A           B          C           D
1. Guard cell Stomatal aperture Subsidiary Cell Epidermal Cell
2. Epidermal Cell Guard Cell Stomatal aperture Subsidiary cell
3. Epidermal Cell Subsidiary Cell Stomatal aperture Guard Cell
4. Subsidiary Cell Epidermal Cell Guard Cell Stomatal aperture
Subtopic:  Epidermal Tissue System |
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Some vascular bundles are described as open
because these :
1. are not surrounded by pericycle
2. are surrounded by pericycle but no
endodermis
3. are capable of producing secondary xylem
and phloem
4. possess conjunctive tissue between xylem
and phloem

Subtopic:  Vascular Tissue System |
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The periderm includes :
1.  Secondary phloem
2.  Cork
3.  Cambium
4.  All of these

Subtopic:  Activity of Cork Cambium |
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Main function of lenticel is : -
1. Transpiration
2. Guttation
3. Gaseous exchange
4. Bleeding

Subtopic:  Activity of Cork Cambium |
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