Question

Cyanobacteria are monerans which have

• A. they have chlorophyll in chloroplasts
• B. the ability to perform oxygenic photosynthesis due to the presence of chlorophyll a
• C. the ability to do anoxygenic photosynthesis and possess nitrogenase
• D. the ability to perform oxygenic photosynthesis and do not have chlorophyll a

Answer 1

The correct option is B the ability to perform oxygenic photosynthesis due to the presence of chlorophyll a

Cyanobacteria undergo oxygenic photosynthesis. This means they use water as an electron donor. Splitting of this water results in liberation of oxygen. Cyanobacteria use chlorophyll a for oxygenic photosynthesis. In anoxygenic photosynthesis, there is no release of oxygen as water is not the electron donor.