Cells

CSU LIFE2 minutes read

Cells are the basic unit of life, with prokaryotic and eukaryotic cells being the main types. Eukaryotic cells have a nucleus, membrane-bound organelles, and unique features like chloroplasts and a central vacuole that are crucial for cell functions and structure.

Insights

  • Cells are divided into prokaryotic (Bacteria and Archaea) and eukaryotic (found in organisms like amoebas, fungi, plants, and animals). Eukaryotic cells have a nucleus, membrane-bound organelles, and additional structures like chloroplasts and a large central vacuole.
  • Plant cells possess distinctive characteristics such as a rigid cell wall, chloroplasts for photosynthesis, and a large central vacuole for water storage, aiding in maintaining cell turgidity and preventing wilting. Replenishing water in vacuoles can revive wilted plants.

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Recent questions

  • What are the main types of cells?

    Prokaryotic and eukaryotic cells.

  • What are the unique features of plant cells?

    Rigid cell wall, chloroplasts, and central vacuole.

  • What is the function of a cell membrane?

    Regulates passage of substances in and out of the cell.

  • How do cells replicate?

    Through a process called cell division.

  • What is the role of genetic material in cells?

    Directs cell functions and replication.

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Summary

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Cell Types and Unique Features Explained

  • Cells are the basic unit of life, sharing common traits such as a plasma membrane, cytoplasm, and genetic material (DNA) that directs cell functions and replication.
  • There are two main types of cells: prokaryotic (Bacteria and Archaea) and eukaryotic (found in organisms like amoebas, fungi, plants, and animals). Eukaryotic cells have a nucleus, membrane-bound organelles, and additional structures like chloroplasts and a large central vacuole.
  • Plant cells have unique features like a rigid cell wall for structure, chloroplasts for photosynthesis, and a large central vacuole for water storage, crucial for maintaining cell firmness and preventing wilting. Refilling the vacuoles with water can help revive wilted plants.
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