Which of the following is an example of potential energy?
A
Water rushing over a water fall.
B
A glucose molecule.
C
A spring being released and expanding rapidly.
D
An ant foraging (moving around) for food.
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1
Understand the concept of potential energy: Potential energy is the stored energy in an object due to its position or state. It has the potential to do work in the future.
Identify the characteristics of potential energy in biological systems: In biological contexts, potential energy is often stored in chemical bonds, such as those found in molecules like glucose.
Analyze each option: a) Water rushing over a waterfall involves kinetic energy, not potential energy, as it is in motion. b) A glucose molecule stores energy in its chemical bonds, which can be released during metabolic processes. c) A spring being released involves kinetic energy as it moves. d) An ant foraging involves kinetic energy due to movement.
Focus on the glucose molecule: Recognize that glucose is a key energy storage molecule in cells, storing potential energy in its chemical bonds that can be released during cellular respiration.
Conclude that the glucose molecule is the correct example of potential energy, as it stores energy that can be utilized by the cell when needed.