MCQ
Choose the event that does not occur in photosynthesis:
- AAbsorption of light energy by chlorophyll.
- BReduction of carbon dioxide to carbohydrates.
- ✓Oxidation of carbon to carbon dioxide.
- DConversion of light energy to chemical energy.
✓
Answer
Correct option: C.
Oxidation of carbon to carbon dioxide.
Photosynthesis is the process wherein light as source of energy, carbon dioxide as chief carbon source and water as electron donor to fix the atmospheric carbon dioxide into organic compounds $($carbohydrates$).$
The main photosynthetic pigment chlorophyll a and accessory pigments chl $b,$ chl $c$ and carotenoids etc trap the Sunlight to carry out the light reactions of photosynthesis. The light reaction of photosynthesis produces $\text{ATP}$ and reducing agents which in turn serve as energy source to drive the second phase of photosynthesis $($dark reactions$)$ during which carbohydrate synthesis takes place.
Oxidation of complex carbon compounds take place during cellular respiration which makes option $C$ correct answer.
The main photosynthetic pigment chlorophyll a and accessory pigments chl $b,$ chl $c$ and carotenoids etc trap the Sunlight to carry out the light reactions of photosynthesis. The light reaction of photosynthesis produces $\text{ATP}$ and reducing agents which in turn serve as energy source to drive the second phase of photosynthesis $($dark reactions$)$ during which carbohydrate synthesis takes place.
Oxidation of complex carbon compounds take place during cellular respiration which makes option $C$ correct answer.
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