PLANT PHYSIOLOGY
MINERAL NUTRITION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Kinase
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Catalase
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Dehydrogenase
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Phosphatase
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Detailed explanation-1: -Active transport requires assistance from carrier proteins, which change conformation when ATP hydrolysis occurs.
Detailed explanation-2: -The process by which a carrier protein transfers a solute molecule across the lipid bilayer resembles an enzyme-substrate reaction, and in many ways carriers behave like enzymes.
Detailed explanation-3: -Carrier proteins (also called carriers, permeases, or transporters) bind the specific solute to be transported and undergo a series of conformational changes to transfer the bound solute across the membrane (Figure 11-3).
Detailed explanation-4: -Some examples of pumps for active transport are Na+-K+ ATPase, which carries sodium and potassium ions, and H+-K+ ATPase, which carries hydrogen and potassium ions. Both of these are antiporter carrier proteins.