NEET BIOLOGY

Detailed explanation-1: -Viruses are neither unicellular, multicellular or prokaryotic. They are acellular organisms and have no structural organisation of a cell. Viruses are obligate intracellular parasites.

Detailed explanation-2: -Viruses are not cellular organisms. They are packets of genetic material and proteins without any of the structures that distinguish prokaryotes and eukaryotes.

Detailed explanation-3: -Microorganisms can be unicellular (single cell), multicellular (cell colony), or acellular (lacking cells). They include bacteria, archaea, fungi, protozoa, algae, and viruses. Bacteria are single celled microbes that lack a nucleus. Archaea are like bacteria, but they have different structures and properties.

Detailed explanation-4: -Because they can’t reproduce by themselves (without a host), viruses are not considered living. Nor do viruses have cells: they’re very small, much smaller than the cells of living things, and are basically just packages of nucleic acid and protein.

Detailed explanation-5: -Bacteria are not multicellular. They are unicellular organisms, possessing only one cell. All functions required to sustain life like growth, metabolism, reproduction, etc are carried out by a single cell in bacteria.