CBSE Notes, Lectures

CBSE - Biology - The Fundamental Unit of Life

The Fundamental Unit of Life

NCERT In Text

Fill in the gaps in the following table illustrating differences between prokaryotic and eukaryotic cells.

Fill in the gaps in the following table illustrating differences between prokaryotic and eukaryotic cells.

Prokaryotic cell Eukaryotic cell
Size: generally small ( 1-10 �m) 1 �m== 10-6 m Size: generally large (5-100 �m)
Nuclear region: _____________________________ and is known as ________. Nuclear region: well-defined and surrounded by a nuclear membrane
Chromosome: single More than one chromosome
Membrane-bound cell organelles are absent ----------------------

Answer

Prokaryotic cell Eukaryotic cell
Size: generally small ( 1-10 �m) 1 �m== 10-6 m Size: generally large (5-100 �m)
Nuclear region: poorly defined because of the absence of a nuclear membrane, and is known as nucleoid Nuclear region: well-defined and surrounded by a nuclear membrane
Chromosome: single More than one chromosome
Membrane-bound cell organelles are absent Membrane-bound cell organelles such as mitochondria, plastids, etc., are present
.