Apoplast movement
Find the wrong one.
(1) Dependent on gradient
(2) Water movement is through mass flow
(3) The continuous stream of water gets tension when water is absorbed by root hairs
(4) Mass flow of water occurs due to adhesive and cohesive properties of water
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySymplastic 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
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySymplastic 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
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMost of the water flow in the roots occur via the………
(1) Apoplast
(2) Symplast
(3) Active transport
(4) Imbibition
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMost 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
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyCasparian strip makes
(1) Endodermis impervious
(2) Inner layer of cortex impervious
(3) Outer layer pervious
(4) More than one option is correct
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe 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
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe path of water in xylem vessels and tracheids is
(1) Symplast
(2) Apoplast
(3) Both A and B
(4) Depends on gradient
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPinus 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.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyRoot 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
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology