NEET BIOLOGY

Detailed explanation-1: -Bacteria are single cell organisms that can reproduce independently of the host. They cause infections such as such as strep throat, urinary tract infections, and pneumonia.

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: -Bacteria lack many of the structures that eukaryotic cells contain. For example, they don’t have a nucleus. They also lack membrane-bound organelles, such as mitochondria or chloroplasts.

Detailed explanation-4: -Unlike bacteria, viruses can’t survive without a host. They can only reproduce by attaching themselves to cells. In most cases, they reprogram the cells to make new viruses until the cells burst and die.