Chlorophyll a itself exists in:
Correct answer: C. Two forms
- A. Several forms
- B. One forms
- C. Two forms
- D. Three forms
Explanation
Option C is correct.Chlorophyll a itself exists in two forms.Protochlorophyllide is the first form of chlorophyll a. It is synthesized in the chloroplasts of plants and algae. Protochlorophyllide is colorless and cannot absorb light. It must be converted into chlorophyll a to absorb light and participate in photosynthesis.Chlorophyll a is the second form of chlorophyll a. It is formed from protochlorophyllide by the addition of a magnesium ion. Chlorophyll a is green and can absorb light in the blue-green and red regions of the spectrum. It is the primary pigment involved in photosynthesis.
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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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