Cell biologyLesson 1 of 1 in the course Reproduction at the Cellular Level

Prokaryotic Binary Fission and FtsZ-Mediated Cytokinesis

5 flashcards · 5 quiz questions · 5 match pairs · 5 fill-in sentences · English

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Summary

This lesson explains how prokaryotic cells, such as bacteria, reproduce through binary fission. Understanding this process shows how a single cell can produce two genetically identical cells and why bacterial populations can grow rapidly.

Prokaryotes do not have a nucleus. In bacteria, the genome is usually one circular DNA chromosome located in a region of the cytoplasm called the nucleoid. The chromosome is associated with proteins that help package DNA into a compact form.

All flashcards

Binary fission
Prokaryotic cell division in which a cell copies its DNA and divides into two daughter cells.
FtsZ ring
A structure assembled at the future prokaryotic division site that helps organize the partition between nucleoids.
Homology
Similarity between features inherited from a shared evolutionary origin.
Septum
A partition that grows inward between chromosome copies as a prokaryotic cell divides.
Cleavage furrow
An indentation formed by microfilaments as an animal cell or some protist cells divide.

Quiz questions

  1. What does the FtsZ ring help organize during prokaryotic cell division?Answer: The partition between the two sides of the cell
  2. Which molecule powers the rapid assembly and disassembly of FtsZ structures?Answer: GTP
  3. What does the similarity between FtsZ and tubulin indicate?Answer: They share an evolutionary origin
  4. Which statement describes chromosome separation in prokaryotic binary fission?Answer: It occurs without a mitotic spindle
  5. What forms the cleavage furrow in animal cells during division?Answer: Microfilaments

Based on Concepts of Biology by Samantha Fowler, Rebecca Roush, James Wise (OpenStax), licensed CC BY 4.0. Adapted into a summary, flashcards and quizzes.

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