Question

Which microbe is smallest?

Answer 1

Hint: A microorganism, or microbe, may be a microscopic organism, which can exist in its single-celled form or a colony of cells. The possible existence of unseen microbial life was suspected from the past , like in Jain scriptures from 6th century BC India.

Complete answer:
Out of all the microorganisms, Viruses are the littlest . Their diameter varies between 20 and 300 nanometres. they're much smaller than bacteria such a lot in order that the most important virus remains smaller to the littlest bacterium known.

Viruses inhabit a number and have a protein coat referred to as the capsid which encompasses its genetic material or genome which could either be the DNA or RNA. Viruses are cellular hence cannot synthesize proteins on their own as a result of which they are not growing. Alternatively, these attack a number cell, seizing their mechanisms to collect newer viruses.

The smallest viruses in terms of genome size are single-stranded DNA (ssDNA) viruses. Perhaps the most famous is the bacteriophage Phi-X174 with a genome size of 5386 nucleotides. However, some ssDNA viruses are often even smaller. For instance , Porcine circovirus type 1 features a genome of 1759 nucleotides and a capsid diameter of 17 nm.

Note: Viruses are the littlest of all the microbes. they're said to be so small that 500 million rhinoviruses (which cause the common cold) could fit on to the top of a pin. they're unique because they're only alive and ready to multiply inside the cells of other living things.