Which of the following statements is NOT applicable in the case of photosynthesis?
- ASeveral pigments are involved in the reaction.
- BOxygen is evolved as a by-product.
- CLight energy is converted into chemical energy and stored in the form of carbohydrates.
- DIt occurs only in colourless anaerobic bacteria.
Solution & Step-by-step Explanation
Let's examine the options for photosynthesis:Option A is correct: It involves multiple photosynthetic pigments such as chlorophyll a, chlorophyll b, carotenoids, and xanthophylls.Option B is correct: Water molecules are split (photolysis) to release oxygen () gas as a by-product.Option C is correct: Solar energy is trapped and converted into chemical energy (glucose/carbohydrates).Option D is incorrect: Photosynthesis is a feature of green plants, algae, and cyanobacteria containing chlorophyll. It cannot occur in colourless anaerobic bacteria, which generally perform chemosynthesis or anaerobic respiration rather than oxygenic photosynthesis.