Respuesta :
Answer:
B
Explanation:
They move against the gradient : this is coming directly from USAtestprep
Based on the model of cellular transport, the hydrolysis of ATP and ADP provides a mechanism for moving against the gradient.
What is active transport?
Active transport is a type of cellular transport that involves the use of ATP to move substances across membranes.
- Active transport can move substances and ions against a concentration gradient.
- Conversely, passive transport moves substances in favor of a concentration gradient.
In conclusion, based on the model of cellular transport, the hydrolysis of ATP and ADP provides a mechanism for moving against the gradient.
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