QUESTION IMAGE
Question
complete the following table, listing the cell organelles function and indicating what type of cell each organelle can be found in (write yes or no). a comparison of cells organelle function prokaryotic cells eukaryotic cells animal cells plant cells cell wall plasma membrane cytoplasm nucleus ribosome
Brief Explanations
- Cell wall:
- Function: Provides structural support and protection to the cell.
- Prokaryotic cells: Many prokaryotes (like bacteria) have a cell wall.
- Animal cells: Do not have a cell wall as they rely on other mechanisms for support (e.g., cytoskeleton).
- Plant cells: Have a rigid cell wall made of cellulose which helps maintain shape and protects the cell.
- Plasma membrane:
- Function: Controls the movement of substances in and out of the cell (selective permeability).
- Prokaryotic cells: Present as the outermost layer (in some cases with a cell wall outside it).
- Animal cells: Present as the boundary of the cell.
- Plant cells: Present just inside the cell wall.
- Cytoplasm:
- Function: Holds organelles and is the site of many metabolic reactions.
- Prokaryotic cells: Fills the cell interior.
- Animal cells: Fills the cell interior.
- Plant cells: Fills the cell interior.
- Nucleus:
- Function: Stores genetic material (DNA) and controls cellular activities (e.g., transcription).
- Prokaryotic cells: Do not have a true nucleus (DNA is in the nucleoid region).
- Animal cells: Have a well - defined nucleus.
- Plant cells: Have a well - defined nucleus.
- Ribosome:
- Function: Site of protein synthesis.
- Prokaryotic cells: Present (smaller 70S ribosomes).
- Animal cells: Present (larger 80S ribosomes).
- Plant cells: Present (larger 80S ribosomes).
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| Organelle | Function | Prokaryotic Cells | Eukaryotic Cells | |
|---|---|---|---|---|
| Cell wall | Provides structural support and protection | Yes | No | Yes |
| Plasma membrane | Controls substance movement | Yes | Yes | Yes |
| Cytoplasm | Holds organelles, site of metabolism | Yes | Yes | Yes |
| Nucleus | Stores DNA, controls cell activities | No | Yes | Yes |
| Ribosome | Site of protein synthesis | Yes | Yes | Yes |