Study the following table showing the components of water potential of three mesophyll cells - A,B and CCellOsmotic potentialPressure potentialA-0.60.2B-0.30.3C-0.90.4If the above cells are in direct contact with each other , then the water moves at the lowest rate between

1.  C → B

2.  B → C

3.  B → A

4.  A → C

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4
Correct Answer :

A → C


Explanation :
No Explanation available for this question

When are the glogi bodies of a cell made non-functional

1.  Chromatids are not formed

2.  Cytokinesis is not completed

3.  Nuclear membrance does not disappear

4.  Spindle apparatus is not formed

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4
Correct Answer :

Cytokinesis is not completed


Explanation :
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A simple tissue with mechanical and physiological functions in a young dicotyledonous plant is:

1.  Parenchyma

2.  Collenchyma

3.  Sclerenchyma

4.  Meristematic tissue

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4
Correct Answer :

Collenchyma


Explanation :
No Explanation available for this question

The number of stomata and epidermal cells in 1 mm2 area of abaxial surface of the leaves of A, B, C and D plants are given below. Identify the plant having the least stomatal index: Plant Number of stomata Number of epidermal cells A 20 100 B 40 160 C 50 300 D 70 560 The correct answer is:

1.  B

2.  C

3.  D

4.  A

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4
Correct Answer :

D


Explanation :
No Explanation available for this question

The cells are chlorophyllous, fewer in number, unique in shape and inner walls thick. This description fits into:

1.  Subsidiary cells

2.  Guard cells

3.  Passage cells

4.  Bulliform cells

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4
Correct Answer :

Guard cells


Explanation :
No Explanation available for this question

Endodermis is a part of:

1.  Epidermal tissue system

2.  Extrastelar ground tissue system

3.  Intrastellar ground tissue system

4.  Vascular tissue system

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4
Correct Answer :

Extrastelar ground tissue system


Explanation :
No Explanation available for this question

The type of vascular bundles in the stem of Dracaena

1.  Radial

2.  Bicollateral

3.  Amphicribal

4.  Amphivasal

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4
Correct Answer :

Amphivasal


Explanation :
No Explanation available for this question

Protoplast lacks

1.  Cytoplasm

2.  Nucleus

3.  Plasma membrane

4.  Cell wall

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4
Correct Answer :

Cell wall


Explanation :
No Explanation available for this question

Development of haploid plants from totipotent pollen is called:

1.  Androgenesis

2.  Parthenocarpy

3.  Emasculation

4.  Somatic hybridization

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4
Correct Answer :

Androgenesis


Explanation :
No Explanation available for this question

Study the following combinations and identify the correct matches related to the role of essential mineral elements in plants :(I)Sulphur -Stabilization of protein structure(II)Manganese-Expression of apical dominance(III)Zinc - Activation of IAA oxidase(IV)Potassium - Maintenance of anion-cation balance in cells

1.  (II), (III)

2.  (II), (IV)

3.  (I), (IV)

4.  (I), (II)

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4
Correct Answer :

(I), (IV)


Explanation :
No Explanation available for this question
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