Q: Which one of the following is the process involved in photosynthesis?
a) Potential energy is released to form free energy
b) Free energy is converted into potential energy and stored
c) Food is oxidized to release carbon dioxide and water
d) Oxygen is taken, and carbon dioxide and water vapour are given out
The correct answer is Option 2.
Photosynthesis
- It is the process by which green plants and certain other organisms transform light energy into chemical energy.
- It uses light energy to convert carbon dioxide and water into glucose and oxygen gas.
- In photosynthesis food is oxidized to form energy oxygen and water. Therefore, the free energy is converted into potential energy and stored. Hence, Option 2 is correct.
- The potential energy stored in the molecular bonds of glucose becomes kinetic energy after cellular respiration.
- Chemical bonds are a form of stored or “potential” energy because when the bonds are broken, energy is released.
- It converts water and carbon dioxide into sugar and oxygen using sunlight as the catalyst.
- A byproduct of the photosynthetic process is the release of oxygen into the atmosphere.
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