The cell obtains energy for the process of glucose synthesis through a process known as photosynthesis. Photosynthesis is a metabolic pathway by which plants, algae, and some bacteria convert light energy from the sun into chemical energy in the form of glucose. This process involves the capture of light energy by pigments called chlorophyll present in the chloroplasts of plant cells.
During photosynthesis, light energy is absorbed by chlorophyll molecules, which excite electrons and elevate their energy level. These excited electrons are then utilized in a series of chemical reactions, collectively known as the light-dependent reactions, which generate ATP (adenosine triphosphate) molecules. ATP serves as the energy currency of the cell, providing energy for various cellular processes.
The ATP molecules produced in the light-dependent reactions are then used to fuel the light-independent reactions, also known as the Calvin cycle or dark reactions. In these reactions, carbon dioxide from the atmosphere and water from the cell's surroundings are used to synthesize glucose and other organic compounds. The energy stored in ATP is utilized to drive the chemical reactions that convert carbon dioxide and water into glucose.
In summary, the plant cell obtains energy for the process of glucose synthesis through photosynthesis, where light energy is captured and converted into chemical energy in the form of ATP. This ATP is then used to drive the reactions that convert carbon dioxide and water into glucose.
Examine the plant cell diagram, which shows glucose being made from carbon dioxide and water.
How does the cell obtain energy for the process?
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