Question

Define the following terms: cell, prokaryotic cell, eukaryotic cell, organelle.

Answer 1

$\text{Cell :}$ The cell is the basic structural and functional unit of living organisms.

$\text{Prokaryotic cell :}$Prokaryotic cells are cells that lack nuclear membranes around their genetic substances (DNA).
Example: Archaebacteria.

$\text{Eukaryotic cell :}$ Eukaryotic cells are cells that contain membrane-bound nuclei and other cellular organelles. Examples: Plant cell, Animal cell.

$\text{Organelle:}$ The organelle is the specific components of cells that perform special functions such as protein synthesis by ribosomes, digestion of waste by lysosomes, and synthesis of food by chloroplast in plant cells.