Question

a cell goes through cellular respiration and produces atp which it then uses to move a molecule across the cell membrane. how does the energy in the original glucose molecule change during this process?
the stored energy in the glucose is used to produce atp that can be converted to mechanical energy when the molecule moves across the cell membrane.
the energy in the glucose is stored as kinetic energy in the atp and released as potential energy when the molecule moves across the cell membrane.
the energy in the glucose is stored as mechanical energy in the atp and released as potential energy when the molecule moves across the cell membrane.
the kinetic energy in the glucose is stored as potential energy in the atp and released as kinetic energy when the molecule moves across the cell membrane.

Explanation:

• Glucose has stored (potential) energy.
• Cellular respiration converts this to ATP (also potential energy storage).
• When ATP is used for active transport (moving molecule across membrane), it is converted to mechanical energy (kinetic in a sense for movement).

Answer:

The stored energy in the glucose is used to produce ATP that can be converted to mechanical energy when the molecule moves across the cell membrane.