Which of the following process involves transport of nutrients across cellular membranes with the assistance of a carrier AND requires energy?
a. diffusion
b. facilitated diffusion
c. active transport
d. osmosis
c. active transport (It is the movement of a substance across a membrane against its concentration gradient. Many active transport carrier proteins, such as the sodium-potassium pump, use the energy stored in ATP to change their shape and move substances across their transportation gradient. Active transport requires energy to get done.)
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a. true b. false
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What will be an ideal response?