Differences between Bacteria and Cyanobacteria
Differences between Bacteria and Cyanobacteria
Cyanobacteria is also known as blue-green algae. They differ from other bacteria in that cyanobacteria possess chlorophyll-a, while most bacteria do not contain chlorophyll. Chlorophyll-a gives them their characteristic blue-green color.
Differences between Bacteria and Cyanobacteria are given as follows:
| S.N. | Characters | Bacteria | Cyanobacteria |
| 1 | Size | Comparatively smaller. | Comparatively larger. |
| 2 | Distribution | Found every possible places in earth. | Only found in presence of sunlight and moisture. |
| 3 | Flagella | May bear flagella. | Flagella always absent. |
| 4 | Cell wall | 1-2 layered. | 4 layered. |
| 5 | Composition of cell wall | Glycolipids and peptidoglycan. | Cellulose and pectin. |
| 6 | Nutrition | May be autotrophic or heterotrophic. | Usually autotrophic. |
| 7 | Photosynthetic pigments | Photosynthetic pigment is bacteriochlorophyll. | Photosynthetic pigments is chlorophyll a. |
| 8 | Accessory pigment | Absent | Accessory pigment like phycocyanin and phycoerythrin are present in dominating form. |
| 9 | Reserve food | Glycogen | Cyanophycean starch |
| 10 | Spore formation | Is endogenous. | Is not endogenous. |
| 11 | Hydrogen donor | During photosynthesis hydrogen donor is not water; as a result oxygen is not evolved. Thus photosynthesis is anoxygenic. | Hydrogen donor is water, oxygen is evolved. Process is oxygenic. |
| 12 | Locomotory organ | Flagella act as locomotory organ. | Lack flagella and other locomotory organ. |
| 13 | Heterocyst | Absent | Present. |
| 14 | Sexual reproduction | Takes place by conjugation, transformation and transduction. | Totally absent. |
References:
- Biologyexams4u
- wisebrain.info
- A textbook of Biology.
- Reader’s Smooth Biology.
Differences between Bacteria and Cyanobacteria
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THE BEST DIFF EVER IT CLEAR OUR CONCEPTS MORE AND MOST
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Thanks
what is photosynthetic lamellae and chloroplast?