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3 years ago

7. In contrast to eukaryotic cells, prokaryotic cells

Biology

2 answers:

Anuta_ua [19.1K]3 years ago

6 0

All prokarytoic cells replicate through binary fission.

Akimi4 [234]3 years ago

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Answer:

A. have to use binary fission to divide.

Explanation:

Prokaryotic cells (Greek pro: before, karyon: nucleus/kernel) have their genetic material freely suspended in the cytoplasm and don't have a well-defined nucleus bounded by a nuclear membrane. They are simpler cells as compared to eukaryotic cells. They use binary fission for cell division.

EXAMPLES: Bacteria

Eukaryotic cells ( Greek Eu: true/well, karyon: nucleus, kernel) have a well defined nucleus bounded by a nuclear membrane and their genetic material (DNA) is not freely suspended in the cytoplasm. They are more advanced cells as compared to prokaryotic cells. They reproduce by mitosis. The cell cycle of eukaryotes is divided into

Interphase
M phase/ Mitosis (cell divides)

Interphase is further divided into following stages:

G1 phase (cell increases in size)
S phase (cell copies its DNA)
G2 phase (cell prepares for division)

M-phase/Mitosis is further divided into following stages:

Prophase
Metaphase
Anaphase
Telophase

Interphase is the longest period of cycle and a cell typically spends most of its life in interphase.

EXAMPLES: Human cells, Plant cells

Coming back to the question.

In contrast to eukaryotic cells, prokaryotic cells

A. have to use binary fission to divide.

This is the correct answer as prokaryotic cells undergo binary fission.

B. have a cell cycle that includes interphase and mitosis.

Eukaryotic cell cycle includes interphase (G1, S, and G2 phases) and mitosis. Interphase and mitosis are not the features of prokaryotic cell cycle.

C. have to pass through the G1 , S, and G2 phases to prepare for division.

G1, S, and G2 are the stages of interphase which is a part of eukaryotic cell cycle. These are not the part of Eukaryotic cell cycle.

D. have to go through prophase, metaphase, anaphase, and telophase.

Prophase, metaphase, anaphase, and telophase are stages of mitosis. Prokaryotic cells don't undergo mitosis and hence they don't go through these steps.

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