What Are the Differences Between Eukaryotic and Prokaryotic Cells?

Over 1M Answers AvailableCategory: BiologyWhat Are the Differences Between Eukaryotic and Prokaryotic Cells?
Bellajay asked 1 year ago
2 Answers
Gen. Sulhazan Staff answered 1 year ago

The primary characteristic that differentiates eukaryotic cells from prokaryotic cells is the cell nucleus. Eukaryotic cells have a nucleus that is surrounded by a membrane, which separates the DNA within from the cytoplasm and other organelles. Prokaryotic cells do not have a true nucleus in that the nucleus is not surrounded by a membrane. Prokaryotic DNA is located in an area of the cytoplasm called the nucleoid region. Prokaryotic cells are typically much smaller and less complex than eukaryotic cells. Examples of eukaryotic organisms include animals, plants, fungi and protists (ex. algae).

Gen. Sulhazan Staff answered 4 weeks ago




1. Prokaryotes are primitive organisms (Pro = primitive; Karyon = nucleus)

1. Eukaryotes are higher organisms (Eu = good or true; Karyon = nucleus)

2. They are generally uni-cellular

2. They are generally multi-cellular

3. The average diameter of prokaryotic cell ranges from 5 – 10μm

3. The average diameter of eukaryotic cell ranges from 10–100 μm

4. Possesss only one envelope system

4. Possesss two envelope system

5. Don’t possess well defined cytoplasmic organelles

5. Possess well defined cytoplasmic organelles like endosplasmic reticulum., golgi bodies, chloroplast, mitochondria

6. They lack nucleus and chromosomes

6. Possess well developed nucleus and chromosomes

7. DNA is circular and lies free in the cytoplasm

7. DNA is linear and lies within the nucleus

8. Cell division is by amitosis (binary fission)

8. Cell division is by mitosis and meiosis

9. Possess ribosomes of 70 S type

9. Possess ribosomes of 80 S type

10. Nucleolus is absent

10. Nucleolus is present

11. Spindle fibres are absent

11. Spindle fibres are present

12. Cell wall is made up of polysaccharides Eg: Muramic acid

12. Cell wall is made up of cellulose, hemicellulose and pectins

13. Histone proteins are absent

13. Histone proteins are present

14. Pigments are distributed throughout the cytoplasm

14. Pigments are present in plastids

15. Nuclear membrane is absent

15. Nuclear membrane is present

16. Mesosomes support respiration

16. Mitochondria support respiration

17. Eg: Bacteria, blue green algae, E. coli, PPLOs (Pleuropheumonia like organisms)

17. Eg: Plant and animal cells