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B2.1 Active Transport and Pump Proteins
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Total cards: 5•Content version: v3•Public deck•Updated: 8/1/2026
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#1
Front (Question)
What is active transport?
Back (Answer)
Movement of molecules against concentration gradient using ATP.
#2
Front (Question)
Example of primary active transport?
Back (Answer)
Sodium-potassium pump (3 Na⁺ out, 2 K⁺ in).
#3
Front (Question)
Example of secondary active transport?
Back (Answer)
Sodium-glucose symport; uses Na⁺ gradient to transport glucose.
#4
Front (Question)
Where does energy for active transport come from?
Back (Answer)
ATP hydrolysis.
#5
Front (Question)
Why is the pump analogy useful?
Back (Answer)
Like a mechanical pump, it moves substances against a gradient using energy.