Cells
CSU LIFE・2 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.
