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HomeHomework HelpbiologyProkaryotic Cells

Prokaryotic Cells

Prokaryotic cells are a type of cell that lack a true nucleus and other membrane-bound organelles, and their size is limited by the surface area of their cell membrane, which affects their metabolic rate and ability to maintain homeostasis. The study of prokaryotic cells is significant in Biological Sciences as it provides insights into the evolution of cellular life and the diversity of microbial ecosystems. Understanding prokaryotic cell structure and function is essential for understanding microbial physiology, ecology, and evolution.

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Biology
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Overview

Prokaryotic cells are the simplest forms of life, characterized by their lack of a nucleus and membrane-bound organelles. They are primarily unicellular and can be found in a variety of environments, from soil to extreme conditions. Understanding prokaryotic cells is essential as they play vital rol...

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Key Terms

Prokaryote
A single-celled organism that lacks a nucleus.

Example: Bacteria are common prokaryotes.

Binary Fission
A method of asexual reproduction in prokaryotes where a cell divides into two identical cells.

Example: Bacteria reproduce by binary fission.

Cell Wall
A rigid outer layer that provides structure and protection to prokaryotic cells.

Example: The cell wall of bacteria is made of peptidoglycan.

Plasma Membrane
A semi-permeable membrane that surrounds the cell, controlling the movement of substances in and out.

Example: The plasma membrane regulates nutrient intake.

Metabolism
The set of life-sustaining chemical reactions in organisms.

Example: Prokaryotes can perform aerobic or anaerobic metabolism.

Genetic Material
The DNA or RNA that carries the genetic information of an organism.

Example: Prokaryotes have a single circular DNA molecule.

Related Topics

Eukaryotic Cells
Study of complex cells with a nucleus and organelles.
intermediate
Microbiology
The study of microorganisms, including bacteria and viruses.
intermediate
Cellular Metabolism
Understanding the biochemical processes that occur within cells.
advanced

Key Concepts

Cell StructureReproductionMetabolismGenetic Material