Multiple Choice
By which of the following mechanisms can a cell transport a substance from a lower to a higher concentration?
A) simple diffusion
B) aquaporins
C) extracellular enzymes
D) active transport
E) facilitated diffusion
Correct Answer:

Verified
Correct Answer:
Verified
Q6: Figure 4.1<br> <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6915/.jpg" alt="Figure 4.1
Q9: Figure 4.3<br> <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6915/.jpg" alt="Figure 4.3
Q21: Figure 4.3<br> <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6915/.jpg" alt="Figure 4.3
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