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chapter 1
organelles
| Term | Definition |
|---|---|
| mRNA | takes the code written on the DNA to the ribosome for protein synthesis |
| Cell membrane | Regulates what is allowed to enter and exit the cell. Is selectively permeable. |
| lysosome | A saclike structure that contains enzymes that can digest bacteria or even other organelles |
| Flagellum | A long whip-like structure used in cellular locomotion |
| Golgi Apparatus | Modifies and packages molecules into small membrane bound sacs called vesicles. |
| Ribosome | The site of protein production |
| Chromosome | Contains hereditary genetic information |
| Amyloplast | Stores starch. |
| Mitochondria | The “powerhouse” of the cell |
| Cell Wall | The tough outer exterior, made up mostly of cellulose. It protects and give structure to the cell. |
| Nucleolus | Thought to be the site of ribosome production; contains a high concentration of RNA. |
| Chloroplast | Contains chlorophyll; the site of photosynthesis |
| Nucleus | The “control centre” of the cell (it contains the genetic information) |
| Smooth Endoplasmic Reticulum | Produces lipids |
| ATP | Adenosine triphosphate. The cell's main energy-carrying compound is a product of cellular respiration |
| Protoplasm | Includes the nucleus, organelles, and cytoplasm |