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NEET UG BIOLOGY MCQ: TRANSPORT IN PLANTS
1
Medium
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Analyzing
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Choose the correct statement
A. Porins allow the entry of small proteins present in the membrane of mitochondria, chloroplast and bacteria
B. When a living cell is kept in hypertonic solution, water potential is equal to solute potential.
C. Carrier proteins will allow entry of all substances across the membrane, whereas pumps transport large molecuoles in a passive method
D. Bulk flow occurs by diffusion
A. Porins allow the entry of small proteins present in the membrane of mitochondria, chloroplast and bacteria
B. When a living cell is kept in hypertonic solution, water potential is equal to solute potential.
C. Carrier proteins will allow entry of all substances across the membrane, whereas pumps transport large molecuoles in a passive method
D. Bulk flow occurs by diffusion
View answer and explanation
Correct option: A
A, B
Option A (A, B) is correct because porins allow entry of small proteins in mitochondria, chloroplasts, and bacteria, and when a living cell is in a hypertonic solution, water potential equals solute potential at full plasmolysis.
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Study the following statement and choose the correct option(s) from the codes from below
I. Root pressure provides a light push in the overall process of water transport
II. Root pressure causes the flow of water faster through xylem than it can be lost by transportation
III. In symplast pathway, water move exclusively through the cell wall and intercellular spaces
IV. Guttation is a cause of transpiration pull
V. Most plants fulfill their water requirement by transpiration pull Rate of imbibition is more in?
I. Root pressure provides a light push in the overall process of water transport
II. Root pressure causes the flow of water faster through xylem than it can be lost by transportation
III. In symplast pathway, water move exclusively through the cell wall and intercellular spaces
IV. Guttation is a cause of transpiration pull
V. Most plants fulfill their water requirement by transpiration pull Rate of imbibition is more in?