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
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMass flow or bulk flow system is the movement of substances in bulk or in 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
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMass 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
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyBulk flow can be achieved by
(1) Positive hydrostatic pressure
(2) Negative hydrostatic pressure
(3) Both A and B
(4) Concentration gradient
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIf mass flow is occurring like a garden hose,
(1) It is due to positive hydrostatic pressure
(2) It is due to negative hydrostatic pressure
(3) It is due to concentration gradient
(4) All of these
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIf mass flow is occurring like suction through a straw
(1) It is due to positive hydrostatic pressure
(2) It is due to negative hydrostatic pressure
(3) It is due to concentration gradient
(4) All of these
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe apoplast does not hold true which of the following statements?
(1) System of adjacent cell walls that is continuous throughout the plant
(2) Not continuous path at the place of casparian strips of the endodermis in the roots
(3) Occurs through the intercellular spaces and the walls of the cells
(4) Crosses cell membrane
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyApoplast 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 & Biology