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cell parts
cells
Term | Definition |
---|---|
Organelles: | the general name of tiny cell structures that carry out specific functions within the cell. |
Cell Wall | A rigid layer that surrounds the cells of plants and some other organisms, it protects and supports the cell. |
Cell Membrane | controls which substances pass into and out of a cell. |
Nuclear Membrane | the double membrane surrounding the nucleus within a cell. Also called the nuclear envelope. **Not in the textbook** |
Nucleolus | small round structure in the nucleus where ribosomes are made. |
Chromatin | thin strands of material that fill the nucleus, contains information for directing the cells function. |
Nucleus | Control center of the cell, directs all of the cells activities. |
Ribosomes: | small grain-shaped organelles that produce proteins. |
Cytoplasm | jelly-like substance that fills all the open areas in the cell. |
Mitochondria | Rod-shaped structures that convert energy from food into energy for the cell, nicknamed the “powerhouse” |
Endoplasmic Reticulum | The ER forms a maze of passageways in which proteins and other materials are carried from one part of the cell to another. |
Golgi apparatus | receives proteins and other newly formed materials from the ER, packages them, and distributes them to other parts of the cell or outside the cell wall. |
Vacuole | stores water, food, and other materials needed by the cell, they can also carry waste products until it is removed. |
Chloroplasts | captures energy from the sunlight and changes it to a form of energy cells can use in making food. |
Lysosomes | Contains substances that break down large food particles into smaller ones.Chapter 9: Lesson 2: Looking Inside Cells |