Prehistoric man used which of the following methods to split rocks and boulders?

(1) Plasmolysis

(2) Active Transport

(3) Osmosis

(4) Imbibition

Subtopic:  Imbibition |
 96%
From NCERT
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Emergence of seedling is due to

(1) Plasmolysis

(2) Active Transport

(3) Osmosis

(4) Imbibition

Subtopic:  Imbibition |
 97%
From NCERT
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In germination of seed, what is absorbent?

(1) Seed

(2) Water

(3) Environment

(4) Seedling

Subtopic:  Imbibition |
 60%
From NCERT
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During Imbibition which of the following is pre-requisite?

(1) Water potential gradient between the absorbent and the liquid imbibed

(2) Affinity between absorbent / adsorbent

(3) Amount of seeds

(4) Both A and B

Subtopic:  Imbibition |
 93%
From NCERT
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From the twig experiment in which twig is placed in colored water, which of the following can be deduced?

(1) The path of organic Acid

(2) The path of hormones

(3) The path of water

(4) The development of twig

Subtopic:  Water Absorption |
 82%
From NCERT
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Long distance transport cannot be carried by

(1) Diffusion Alone

(2) Active transport alone

(3) Bulk flow

(4) Both A and B

Subtopic:  Water Absorption |
 75%
From NCERT
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Movement of molecule across a typical plant cell i.e. 50 micrometer takes

(1) 10 seconds

(2) 15 seconds

(3) 2.5 seconds

(4) 16 seconds

Subtopic:  Water Absorption |
 84%
From NCERT
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Mass flow or bulk flow system is the movement of substances in bulk or en masse from one point to another point as a result of

(1) Pressure Difference between two points

(2) Osmotic gradient between two points

(3) Concentration gradient between two points

(4) Cannot be predicted

Subtopic:  Ascent of Sap |
 67%
From NCERT
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Mass flow

(1) Solids move slowly

(2) Liquid move faster

(3) All move through the same pace

(4) Solids move faster due to high Osmotic pressure

Subtopic:  Ascent of Sap |
 69%
From NCERT
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Bulk flow can be achieved by

(1) Positive hydrostatic pressure

(2) Negative hydrostatic pressure

(3) Both A and B

(4) Concentration gradient

Subtopic:  Ascent of Sap |
 78%
From NCERT
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