Prokaryotic Cells

Prokaryotic cells are a type of cell that lacks a nucleus and other membrane-bound organelles. They are typically smaller and simpler in structure compared to eukaryotic cells.

Characteristics of Prokaryotic Cells:

1. No Nucleus: Prokaryotic cells do not have a nucleus. Instead, their genetic material is located in the cytoplasm in the form of a single, circular chromosome.
2. Lack of Membrane-bound Organelles: Prokaryotic cells do not have membrane-bound organelles such as mitochondria, endoplasmic reticulum, or Golgi apparatus.
3. Cell Wall: Most prokaryotic cells have a rigid cell wall outside the cell membrane, providing structural support and protection.
4. Flagella: Some prokaryotic cells have flagella, which are long, whip-like appendages used for movement.
5. Cytoplasm: The cytoplasm of prokaryotic cells contains ribosomes, which are responsible for protein synthesis.

Study Guide for Prokaryotic Cells:

Here are some key points to remember when studying prokaryotic cells:

1. What is the main characteristic that sets prokaryotic cells apart from eukaryotic cells?
2. Describe the structure of the genetic material in prokaryotic cells.
3. List at least two membrane-bound organelles that are absent in prokaryotic cells.
4. Explain the function of the cell wall in prokaryotic cells.
5. What is the role of flagella in prokaryotic cells?
6. Identify the site of protein synthesis in prokaryotic cells.

Understanding the characteristics and structure of prokaryotic cells is essential for a solid foundation in biology and cellular biology.