Symplastic system

Find the wrong one.

(1) System of interconnected protoplasts

(2) Involves path through plasmodesmata

(3) Water has to enter the cells through the cell membrane

(4) Above a potential gradient movement

Subtopic:  Water Absorption |
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Symplastic movement is slower than apoplastic movement

(1) Because it involves cytoplasmic streaming always

(2) Molecule has to enter through the cell membrane

(3) Because it is down the gradient

(4) All of these

Subtopic:  Water Absorption |
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Most of the water flow in the roots occur via the………

(1) Apoplast

(2) Symplast

(3) Active transport

(4) Imbibition

Subtopic:  Water Absorption |
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Most of the movement in roots through apoplast is due to

(1) Cortical cells are loosely packed and hence no resistance to water movement

(2) Endodermal cells are loosely packed and hence no resistance to water movement

(3) Pericycle cells are loosely packed and hence no resistance to water movement

(4) Medullary cells are loosely packed and hence no resistance to water movement

Subtopic:  Water Absorption |
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Casparian strip makes

(1) Endodermis impervious

(2) Inner layer of cortex impervious

(3) Outer layer pervious

(4) More than one option is correct

Subtopic:  Water Absorption |
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The movement of water through apoplast stops at the level of ……..And crosses membrane to undergo symplast till xylem cells

(1) Endodermis of root

(2) Starch sheath

(3) Inner layer of cortex

(4) All of these

Subtopic:  Water Absorption |
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The path of water in xylem vessels and tracheids is

(1) Symplast

(2) Apoplast

(3) Both A and B

(4) Depends on gradient

Subtopic:  Water Absorption |
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Pinus has an/a…….. association with mycorrhizae and their …….. without the presence of mycorrhizae.

(1) Obligate, seeds cannot germinate

(2) Facultative, fruits cannot disperse

(3) Obligate, roots can not spread down the soil

(4) Facultative, leaves cannot perform photosynthesis.

Subtopic:  Water Absorption |
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Root pressure

(1) Pushing pressure

(2) Negative pressure

(3) Tries to cope up with water requirement of well heighted plants

(4) Effects are observed at day time and evening time

Subtopic:  Transpiration & Guttation |
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Water loss in liquid phase from the tip of the grass blades and leaves of herbaceous parts is called

(1) Evaporation

(2) Transpiration

(3) Guttation

(4) Solarization

Subtopic:  Transpiration & Guttation |
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