Choose the item in column 2 that best matches each item in column 1. You may use a column 2 item more than once
A) active transport and indirect active transport
B) simple diffusion and facilitated diffusion
C) active transport
D) none of the listed processes
E) simple diffusion
F) facilitated diffusion and active transport
G) facilitated diffusion (passive transport)
H) indirect active transport
1) requires direct ATP hydrolysis
2) depends on high partition coefficient of the solute
3) driven by an ion gradient
4) transports glucose across membranes
5) Na+/glucose symport
6) Na+/K+ ATPase pump
7) transports small, nonpolar molecules
8) transports ions up concentration gradients
9) transports water across membranes
10) direction of transport depends on the concentration gradient
11) requires ligand binding and therefore Km for transport can be calculated
Answers: 1) C 2) E 3) H 4) A 5) H 6) C 7) E 8) C 9) B 10) B 11) F
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