PLANT PHYSIOLOGY
TRANSPORT IN PLANT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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I and II only
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I and III only
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II and III only
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I, II and III
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Detailed explanation-1: -Secondary active transport (cotransport), on the other hand, uses an electrochemical gradient – generated by active transport – as an energy source to move molecules against their gradient, and thus does not directly require a chemical source of energy such as ATP.
Detailed explanation-2: -Cotransporters are a major class of membrane transport proteins that are responsible for the accumulation of nutrients, neurotransmitters, osmolytes and ions in cells from bacteria to man. The energy for solute accumulation comes from the proton and/or sodium electrochemical gradients that exist across cell membranes.
Detailed explanation-3: -(Science: cell biology, physiology) The linked, simultaneous transport one substance across a membrane, coupled with the simultaneous transport of another substance across the same membrane in the same direction.
Detailed explanation-4: -Symport is a type of cotransport. Here, substances move at the same time and in the same direction.