select all the true statements about how plants use and change energy. plant cells use cellular respiration…
select all the true statements about how plants use and change energy. plant cells use cellular respiration to get chemical energy from food. chlorophyll captures light energy. photosynthesis creates energy from carbon dioxide and water. photosynthesis transforms light energy into chemical energy.
Answer
Brief Explanations:
- Plant cells use cellular respiration to get chemical energy from food: Cellular respiration is the process by which cells break down food molecules (such as glucose) to release chemical energy in the form of ATP. This is a fundamental process in plant cells (and most other living cells) for energy utilization.
- Chlorophyll captures light energy: Chlorophyll is the pigment in plant chloroplasts that absorbs light energy (mainly in the red and blue - violet regions of the spectrum). This is the first step in the light - dependent reactions of photosynthesis.
- Photosynthesis transforms light energy into chemical energy: During photosynthesis, light energy is converted into chemical energy (stored in the bonds of glucose and other organic molecules). The light - dependent reactions convert light energy to ATP and NADPH (chemical energy carriers), and the light - independent reactions (Calvin cycle) use this chemical energy to fix carbon dioxide into glucose.
The statement “Photosynthesis creates energy from carbon dioxide and water” is incorrect. According to the law of conservation of energy, energy is not created or destroyed. Photosynthesis converts light energy into chemical energy, and it uses carbon dioxide and water as reactants.
Answer:
- Plant cells use cellular respiration to get chemical energy from food.
- Chlorophyll captures light energy.
- Photosynthesis transforms light energy into chemical energy.