Which among the following was done by Johannes Purkinje?Invented the first compound microscopeFirst observed living cells of bacteria, sperm and protozoaNamed the fluid content of the cells as protoplasmObservation of ribosomes in animal cell

Who was the first to observe microorganisms with a microscope?

Who discovered the first unicellular organisms by looking at pond water, blood, and bacteria in feces and tartar?a.Rudolf Virchowb.Robert Hookec.Anton Van Leewenhoek

Who discovered the cells when he looked at a thin slice of cork under the microscope?a.Anton Van Leeuwenhoekb.Matthias Schleidenc.Robert Hooke

Amongst the following, who was the first to isolate DNA, from the nucleus of the pus cells?J.D. WatsonFriedrich MiescherHofmeisterStrasburger

Assertion: Before the first microscope was invented around 350 years ago, people were not aware of the living world that was not visible to the naked eye.Reason: To study about basic structures, a proper use of microscopes and preparation of microscopic slides and staining is essential.