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Cell Organelles
Organelles, Cytoplasm, & the nucleus
| Question | Answer |
|---|---|
| Fragile outer boundry of cellSeperates intracellular fluid & extracellular fluid-Selectively permeable Barrier | Plasma Membrane |
| Intracellular fluid that contains OrganellesCytosolInclusions | Cytoplasm |
| * Provide most of ATP energy* Contains own DNA & RNA | Mitochondria |
| * Protein Synthesis* Free and Membrane Bound | Ribosomes |
| * Fluid Filled tubular channels* Manufactures all secreted proteins* External surface studded with ribosomes* Synthesis of integral membrane proteins & phospholipids for cell membranes | Rough Endoplasmic Reticulum |
| * Continuous with nuclear membrane* no ribosomes* less prominent* Lipid & cholesterol synthesis & metabolism* Detoxification of drugs | Smooth Endoplasmic Reticulum |
| * Shipping Department or Traffic Director for cellular proteins* Functions in modification, concentration & packaging proteins* Secretory - gathers & moves out of cell | Golgi Apparatus |
| " Garbage truck of cell"* Contains digestive enzymes for breakdown of - Glycogen & releases thyroid hormone | Lyosomes |
| * Contains enzymes * Neutralizes dangerous free radicals * Detoxify harmful or toxic substances* Oxidases & Catalases | Peroxisomes |
| * Cell Skeleton* Contain microfilaments & microtubules | Cytoskeleton |
| * Organize the mitotic spindle during mitosis* Form bases of cilia & flagella* In centrisome at right angles to each other | Centrioles |
| * Whiplike, cellular extensions on exposed membranes of certain cells* Propels substances accross cell surface* In lungs | Cilia |
| * Longer projections that propel the cell* Sperm the only example | Flagella |
| * "Control Center"* Transmits genetic info (DNA)* Transmits protein systhesis instruction* All but mature red blood cells have | Nucleus |
| * Double and selectively permeable * Seperates neucleoplasm from cytoplasm | Nuclear Envelope |
| * Site of ribosome production* Contains protein * no membranes in above bodies | Nucleoli |
| * Structures in the nucleus that carry the hereditary factors (genes)* Contain nucleosomes - genes | Chromatin |