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Cell Components
Compnents of a Cell
| Question | Answer |
|---|---|
| Cell Membrane (function) | Maintains shape of cell and controls passage of materials into and out of the cell. |
| Cell Membrane (Composition) | Composed of primarily of proteins and lipids. |
| Cytoplasm | A semi fluid substance forming hte foundation of the cell. It is the site of metabolic reactions. Contians organells |
| Cytoskeleton | An interconnected system of fibers, threads and interwoven molecules giving structure to the cell. |
| Cytoskeleton (composition) | Micro tubules, Micro filaments and intermediate filaments. All components are assembled from subunits of protien. |
| Mitochondria (function) | To produce Adenosine Triphosophate (ATP) by convering CHO/Lipids/Proteins Energy is released when ATP breaks down |
| Endoplasmic Reticulum (composition) | A series of membranes extending throughout the cytoplasm of the cell. |
| Endoplasmic Reticulum (function) | Protein synthesis, membrane synthesis |
| Rough Endoplasmic Reticulum | Contains ribosomes Functions to synthesize and transport proteins |
| Ribosomes (composition and function) | Particles composed of protein and RNA Functions to synthesize and ransport protiens |
| Smooth Endoplasmic Reticulum | No ribosomes Functions to synthesize CHO and Lipids |
| Golgi Apparatus | Group of Flattned Membranous sacs, stacked on one another called Cisterns |
| Cisterns | A group of flattned membranous sacs, stacked on one another. |
| Golgi Apparatus (Function) | Process, sort and deliver proteins and lipids for secretion or transport to other organelles |
| Lysosomes (function and composition) | Membranous sacs Contains enzymes formed in the Golgi apparatus and is used in intracellular digestion to break down nutrients or foreign particles. Can destroy organelles or vesicles, resulting in recycling substances or expelled. |
| What are Lysosomes important in the destruction of? | Worn out cellular parts |
| Peroxisomes (functions) | Detoxify substances that are produced by the cell Protets the cell from its own toxic biproducts |
| Micro villi (Components) | Fingerlike extensions of the plasma membrane that project from the cell's surface. They increase the surface area of the plasma membrane. |
| Micro Villi (Function) | Found on the surfaces of absorption cells such as intestinal and kidney tubal cells. |
| Cillia (description and function) | Tubules which project form the cell membrane and move together in one motion. Functions to propel fluid over the surface of the cell. Eg: ciliatred cells propel mucus laden dust particles / bacteria out of hte lungs. |
| Flagellum | Single large projection which functions to move the cell in surrounding fluid. EG sperm tail |
| Nucleus | the brain of the cell functions to control the actions of the cell Contains DNA Prokaryotes = no nucleous eg: bacteria Eukaroytes = have nucleous eg: plants, animals and humans. |
Created by:
heweijun8
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