Animal Cells - Cell Structure
Overview
Animal cells are eukaryotic, meaning they have a nucleus and other membrane-bound structures. Light and electron microscopes help us see the intricate details within these cells. Each component within an animal cell has a specific function.
Key Components of Animal Cells
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Cytoplasm
- Description: Jelly-like material containing dissolved nutrients, salts, and organelles.
- Function: Site of many chemical reactions.
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Nucleus
- Description: Contains genetic material, including DNA.
- Function: Controls the cell's activities.
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Cell Membrane
- Description: Selectively permeable membrane.
- Function: Controls the entry and exit of substances.
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Mitochondria
- Description: Organelles containing enzymes for respiration.
- Function: Sites where most energy is released during respiration.
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Ribosomes
- Description: Tiny structures.
- Function: Site of protein synthesis.
Microscopy
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Light Microscopes
- Used to see mitochondria but not in detail.
- Cheek cell slides can be prepared for observation.
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Electron Microscopes
- Necessary to view ribosomes due to their tiny size.
Cell Specialization
- Animal cells are specialized and adapted for their specific functions.
- Both animal and plant cells consist of various cell types working together.
Additional Resources
These notes summarize the key points regarding animal cells and their structure, providing a foundational understanding for further study and application in biology.