Question

Diameter of prokaryotic and eukaryotic cells are respectively:
A) \[0.2 - 10\mu {m^3}and{\text{ }}1000 - 10000\mu {m^3}\]
B) \[3.1 - 10\mu m3and{\text{ }}100 - 1000\mu m3\]
C) \[0.1 - 5.0\mu {m^3}3 - 30\mu {m^{3\;}}\]
D) \[{\text{ }}0.1 - 1.0\mu m3and{\text{ }}10 - 100\mu m3\]

Answer 1

Hint: Cells that have membrane-bound nuclei are called eukaryotic whereas those that lack a membrane-bound nucleus are termed prokaryotic. In both prokaryotic and eukaryotic cells, a semi-fluid matrix exists.it is called cytoplasm.

Complete answer:
The prokaryotic cells are represented by bacteria, blue-green algae, mycoplasma and PPLO. They are generally smaller in size and multiply much faster than eukaryotic cells. They may vary greatly in shape and size but exhibit a similar basic cellular organisation.

Most prokaryotes have a cell wall surrounding the cell membrane. The fluid matrix filing the cell is the cytoplasm. There is no well-defined nucleus. The genetic material is basically naked, it is not enveloped by a nuclear membrane.

Eukaryotic cells are those which possess an organised nucleus with a nuclear envelope. Some of the important characteristics of eukaryotic cells are cytoskeletal structure, membrane-bound organelles and organisation of genetic material into chromosomes. These cells occur in Protists, fungi, plants and animals. Prokaryotic cells are very small and eukaryotic cells are comparatively larger. Hence, \[0.1 - 5.0\mu {m^3}3 - 30\mu {m^{3\;}}\] is the correct answer.

Therfore the correct answer is option ‘C’.

Note: Ribosomes are non-membrane bound organelles found in the cells of both eukaryotic and prokaryotes. Within the cell, ribosomes are found not only in the cytoplasm but also within the two organelles. In both prokaryotic and eukaryotic cells, a semi-fluid matrix exists.it is called cytoplasm.