NURSING ANM AND GNM

NURSING EXAM QUESTIONS

MICROBIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which best compares bacteria and viruses?
A
Bacteria are smaller than viruses.
B
Bacteria cause disease, but viruses do not.
C
Bacteria are living organisms, but viruses are not.
D
Bacteria have genetic material, but viruses do not.
Explanation: 

Detailed explanation-1: -Their “life” therefore requires the hijacking of the biochemical activities of a living cell. Bacteria, on the other hand, are living organisms that consist of single cell that can generate energy, make its own food, move, and reproduce (typically by binary fission).

Detailed explanation-2: -On a biological level, the main difference is that bacteria are free-living cells that can live inside or outside a body, while viruses are a non-living collection of molecules that need a host to survive.

Detailed explanation-3: -Viruses are not made out of cells, they can’t keep themselves in a stable state, they don’t grow, and they can’t make their own energy. Even though they definitely replicate and adapt to their environment, viruses are more like androids than real living organisms.

Detailed explanation-4: -Bacteria are intercellular organisms (i.e. they live in-between cells); whereas viruses are intracellular organisms (they infiltrate the host cell and live inside the cell). They change the host cell’s genetic material from its normal function to producing the virus itself.

Detailed explanation-5: -But what is the difference between these two types of germs? Bacteria are single cells that can multiply and cause infection. Viruses are much smaller than bacteria and need a host cell to reproduce. Viruses can only infect living cells, while bacteria can also infect non-living things like soil or water.

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