NURSING ANM AND GNM

NURSING EXAM QUESTIONS

MICROBIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Most oxidation reactions in microbial bioenergetics involve the
A
addition of electrons and hydrogens
B
addition of oxygen
C
removal of oxygen
D
removal of electrons and hydrogens
Explanation: 

Detailed explanation-1: -a. removal of hydrogen ions and electrons.

Detailed explanation-2: -Biological oxidation–reduction (BC/GC) In a redox reaction, one of the reacting molecules loses electrons and is said to be oxidized, while another reacting molecule gains electrons (the ones lost by the first molecule) and is said to be reduced.

Detailed explanation-3: -Oxidation and Reduction in Metabolism Reactions that remove electrons from donor molecules, leaving them oxidized, are oxidation reactions; those that add electrons to acceptor molecules, leaving them reduced, are reduction reactions.

Detailed explanation-4: -Oxidation–reduction (redox) reactions involve the transfer of electrons between chemical species. Oxidation results in the loss of electrons or the increase of the oxidation state by a molecule.

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