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Which of the following is/are the source/s of hydrogen in photosynthetic bacteria?
a) water                      
b) hydrogen sulphide
c) alcohol                    
d) both a and b

b

Which of the following is/are the source/s of hydrogen in cyanobacteria?
a) water                                 
b) hydrogen sulphide
c) alcohol                    
d) both a and b

a

Explanation: like other photosynthetic plants



Photoautotrophic bacteria have ………
a) PS I                        
b) PS II
c) both                        
d) none of them

a

Explanation: only cyclic electron flow is the sole source of ATP & NADPH



Which of the following photosynthetic pigment/s is/are present in autotrophic bacteria?
a) chlorophyll a        
b) phycocynin and allophycocyanin
c) phycoerythrin         
d) all of these

a

Which of the following photosynthetic pigment/s is/are present in cyanobacteria?
a) chlorophyll a          
b) phycocynin and allophycocyanin
c) phycoerythrin         
d) all of these

d

The simplest oxygen-producing organisms are……
a) photosynthetic bacteria                  
b) cyanobacteria       
c) chlamydomonas
d) autotrophic bacteria

b

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