MCQ IN MEDICINE

Detailed explanation-1: -Most intracellular bacteria and parasites carry the basic genetic information required for their own metabolism and replication, and they rely on their host cells only for nutrients.

Detailed explanation-2: -Viruses are tiny infectious agents that rely on living cells to multiply. They may use an animal, plant, or bacteria host to survive and reproduce. As such, there is some debate as to whether or not viruses should be considered living organisms. A virus that is outside of a host cell is known as a virion.

Detailed explanation-3: -Host Cell Examples Some of the host cells of viruses include: CD4+T lymphocytes, monocytes, macrophages, and dendritic cells (DC) are the host cells for HIV (Human immune deficiency virus) Respiratory tract epithelial cells are the host cells for the Influenza virus.