Chlorophyll a is present in all except:
Correct answer: D. Purple sulphur bacteria
- A. Kelps
- B. Spirogyra
- C. Wheat
- D. Purple sulphur bacteria
Explanation
The correct answer is the D: purple sulfur bacteria these bacteria do not contain chlorophyll a; they utilise bacteriochlorophylls for photosynthesis in environments lacking oxygen. In contrast, kelps, Spirogyra, and wheat are all photosynthetic organisms that contain chlorophyll a, which is a crucial component for capturing light energy in the photosynthetic process.
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Cellular respiration explains how cells release energy from glucose through glycolysis, the link reaction, Krebs cycle and electron transport chain. It includes ATP production, substrate-level and oxidative phosphorylation, aerobic versus anaerobic respiration, and the roles of mitochondria, oxygen and fermentation in energy transfer.
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