Which of the Following is Not a Major Element of a Microbial

Question

Which of the following is not a major element of a microbial cell?
A) Nitrogen
B) Oxygen
C) Carbon
D) Hydrogen
E) Copper

Accepted Answer

Copper is not considered a major element of a microbial cell. Major elements, such as nitrogen, oxygen, carbon, and hydrogen, are fundamental for the structure and functioning of cells, being part of macromolecules like proteins, nucleic acids, carbohydrates, and lipids. Copper, while important as a trace element for certain enzymes, is not present in the same abundance or necessity as the other elements listed.