Multiple Choice
Which of the following membrane activities require energy from ATP hydrolysis?
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6. The Membrane
Active Transport
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Which energy transformation occurs during active transport in a cell?
A
Chemical energy to kinetic energy
B
Chemical energy to mechanical energy
C
Thermal energy to chemical energy
D
Light energy to chemical energy
Verified step by step guidance1
Understand that active transport is a process where cells move molecules across a membrane against their concentration gradient, which requires energy.
Recognize that the energy used in active transport is typically derived from ATP (adenosine triphosphate), a molecule that stores chemical energy.
Identify that during active transport, the chemical energy stored in ATP is converted into another form of energy to perform work.
Consider the types of energy involved: chemical energy from ATP is used to change the shape of transport proteins in the cell membrane, which is a form of mechanical work.
Conclude that the energy transformation occurring during active transport is from chemical energy to mechanical energy, as the energy from ATP is used to move molecules across the cell membrane.
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