Question:
Photosynthetic organisms which lack chlorophyll-a are _________
Photosynthetic organisms which lack chlorophyll-a are _________
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Anoxygenic photosynthesis occurs without chlorophyll-a.
Updated On: Mar 6, 2026
- vascular plants
- algae
- photosynthetic bacteria
- bryophytes
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The Correct Option is C
Solution and Explanation
Step 1: Understanding chlorophyll types.
Chlorophyll-a is the main pigment involved in oxygenic photosynthesis in plants and algae.
Step 2: Examining photosynthetic bacteria.
Photosynthetic bacteria such as purple and green bacteria perform anoxygenic photosynthesis using bacteriochlorophyll instead of chlorophyll-a.
Step 3: Option analysis.
(A) Vascular plants possess chlorophyll-a.
(B) Algae contain chlorophyll-a.
(C) Photosynthetic bacteria lack chlorophyll-a.
(D) Bryophytes contain chlorophyll-a.
Step 4: Conclusion.
The correct answer is (C) photosynthetic bacteria.
Chlorophyll-a is the main pigment involved in oxygenic photosynthesis in plants and algae.
Step 2: Examining photosynthetic bacteria.
Photosynthetic bacteria such as purple and green bacteria perform anoxygenic photosynthesis using bacteriochlorophyll instead of chlorophyll-a.
Step 3: Option analysis.
(A) Vascular plants possess chlorophyll-a.
(B) Algae contain chlorophyll-a.
(C) Photosynthetic bacteria lack chlorophyll-a.
(D) Bryophytes contain chlorophyll-a.
Step 4: Conclusion.
The correct answer is (C) photosynthetic bacteria.
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