Question

what are the Characteristic of prokaryotic cell ?​

Answer 1

Answer:

Prokaryotic cells lack a true nucleus. The nucleus is devoid of the nuclear membrane. On the contrary, the nucleus of the eukaryotic cells is enclosed by a nuclear membrane. A prokaryotic cell also lacks mitochondria and chloroplast, unlike a eukaryotic cell.

Explanation:

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Answer 2

Answer :

Prokaryotic cell is a unicellular organism lacking membrane-bound organelles.

The characteristics of prokaryotic cells are as follows:

$\bigstar$ Most of them are unicellular.

$\bigstar$ They are generally small in size. The size of a prokaryotic cell varies from 0.5-5 micrometre

$\bigstar$ The nuclear region of a prokaryotic cell is poorly-defined because of the absence of a nuclear membrane. Hence, a prokaryotic cell lacks a true nucleus.

$\bigstar$ The genetic materials of prokaryotic cells are naked. They contain single, circular chromosomes. In addition to the genomic DNA, they have a small, circular plasmid DNA.

$\bigstar$ Membrane-bound cell organelles such as mitochondria, plastids, and endoplasmic reticulum are absent from a prokaryotic cell.

$\bigstar$ Most prokaryotic cells contain a three-layered structure-outermost glycocalyx, middle cell wall, and the innermost plasma membrane. This structure acts as a protective unit.

Examples of prokaryotic cells include blue green algae, bacteria, etc.