NURSING ANM AND GNM

Detailed explanation-1: -Virus-a small nonliving particle that invades and then multiplies inside a living cell. Biologists consider viruses to be nonliving because viruses are not cells. Viruses do not use energy to grow or respond to their surroundings. Viruses can multiply.

Detailed explanation-2: -A virus is a tiny, infectious particle that can reproduce only by infecting a host cell. Viruses “commandeer” the host cell and use its resources to make more viruses, basically reprogramming it to become a virus factory. Because they can’t reproduce by themselves (without a host), viruses are not considered living.

Detailed explanation-3: -Once inside a host, viruses invade the organism’s cells and “hijack” them, causing them to stop performing their normal functions and to start making more copies of the virus. Viruses are really, really, small (even 100x smaller than bacteria!) pathogens that can only replicate within a living organism, called a host.

Detailed explanation-4: -Viruses consist of nucleic acid (genetic material) surrounded by a capsid (protein coat). Most scientists consider viruses to be nonliving because they can’t carry out the most basic processes of life.

Detailed explanation-5: -Viruses contain DNA but not much else. They lack the other parts shared by all cells, including a plasma membrane, cytoplasm, and ribosomes.