Prokaryotes are characterized by:
Correct Answer: Absence of nuclear membrane
Description: Ans. is 'a' i.e., Absence of nuclear membrane(Ref: Ananthanarayan, 9th/e, p. 10 and 8th/e, p. 10, 13)ProkaryotesEukaryotesNuclear membrane absentNuclear membrane well definedCytoplasmic structures absent, e.g., Mitochondria, Lysosomes, Golgi apparatus, and endoplasmic reticulum are absent.All these cell organelles are presentIn cell wall muramic acid and diaminopimelic acids (DAPA) presentBoth absent in cell wallNo sterols in cell membraneSterols present in cell membraneE.g.: Bacteria, blue-green algaeFungi, protozoa, slime mouldsSite of respiration - MesosomesMitochondria
Category:
Microbiology
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