What best defines prokaryotic cells?

I. Single chromosome

II. Membrane-bound cell organelles absent

Question

Question

This question was previously asked in

SSC GD Constable (2022) Official Paper (Held On : 09 Feb 2023 Shift 2)

Answer 1

The correct answer is Both I and II.

Key Points

Prokaryotic cells are unicellular organisms that lack a nucleus and other membrane-bound organelles in their cytoplasm.
The genetic material of prokaryotic cells is present in a single circular chromosome that is not enclosed within a membrane.
They are generally smaller in size than eukaryotic cells and have a simpler structure.
They are found in bacteria and archaea, which are two of the three domains of life on Earth.

Additional Information

Eukaryotic and Prokaryotic cells are the two main types of cells that make up living organisms.
Here are the key differences between them:

Part	Eukaryotic cells	Prokaryotic cells
Nucleus	have a true nucleus, their genetic material is enclosed within a membrane-bound nucleus.	lack a true nucleus, genetic material is present in a region called the nucleoid, which is not enclosed by a membrane.
Membrane-bound organelles	have membrane-bound organelles such as mitochondria, endoplasmic reticulum, and Golgi apparatus.	lack membrane-bound organelles.
Chromosomes	most have multiple linear chromosomes.	have just one circular chromosome.
Reproduction	by mitosis (for somatic cells) or meiosis (for sex cells).	by binary fission.
DNA Structure	Linear DNA is complexed with histone proteins, present in the nucleus.	Circular DNA is found in the nucleoid region, without histone proteins.
Examples	plants, animals, fungi, and protists.	bacteria and archaea.