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The last step in aerobic respiration is the oxidation of ………produced during glycolysis and Kreb’s cycle by molecular oxygen.
a) NADH2                  
b) NADP
c) FADH2                  
d) both a and c

d

Explanation: oxygen is the last electron acceptor along with hydrogen to form water



Which of the following is/are involved in the transport of electron during ETC?
a) NADH2 and FADH2                    
b) coenzyme Q
c) cytochrome a, b, c, a3        
d) all of these

d

Explanation: coenzyme Q and cytochromes are alternately reduced and oxidized


The synthesis of ATP from ADP and inorganic phosphate in the electron transport chain is called…….
a) photophophorylation                                  
b) autophophorylation
c) chemiosmotic ATP synthesis       
d) all of these

c

Explanation: it is the joint event of chemical and osmotic pressure


What is the ATP yield of preparatory phase of glycolysis?
a) 2                 
b) -2                
c) 4                 
d) 0

b

What is the ATP yield of oxidative phase of glycolysis?
a) 18   
b) -4                
c) 4                 
d) 6

c

What is the NADH coenzyme yield of glycolysis?
a) 2                 
b) 6                 
c) 4                 
d) 0

a

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