NEET BIOLOGY

Detailed explanation-1: -Viruses are about 1, 000 times smaller than bacteria and are visible under an electron microscope. Bacteria are single-celled organisms that reproduce asexually independently of other organisms. Viruses require the aid of a living cell in order to reproduce.

Detailed explanation-2: -Viruses are even smaller than bacteria. They aren’t even a full cell. They are simply genetic material (DNA or RNA) packaged inside of a protein coating. They need to use another cell’s structures to reproduce.

Detailed explanation-3: -Bacteria are bigger and more complex than viruses, though they can still spread through the air. A bacterium is a single cell, and it can live and reproduce almost anywhere on its own: in soil, in water and in our bodies.

Detailed explanation-4: -Adenovirus is the smallest virus and Mycoplasma is the smallest bacteria. Both bacteria and viruses are contagious organisms that lead to many diseases in both plants and animals.

Detailed explanation-5: -Bacteria are cells too, but they’re only about one tenth the size of our cells. And viruses are smaller again-they’re about a hundredth the size of our cells. So we’re about 100, 000 times bigger than our cells, a million times bigger than bacteria, and 10 million times bigger than your average virus!