| A | B |
|---|
| cell theory | a theory that explains the relationship between cells and living things. |
| cell membrane | The _____ controls what enters and exits the cell. |
| organelle(s) | A structure inside a cell that does a certain job is called an ____. |
| cytoplasm | The fluid mixture with organelles and other vital compounds in cells is the____. |
| prokaryotic cell | Bacteria are _______cells. |
| eukaryotic cell | a cell that has a nucleus and membrane-covered organelles. |
| mitochondria | Muscle cells have a lot of ____ to produce the large amounts of energy necessary to do their work. |
| vacuole | an organelle that stores food, water, and other materials needed by the cell. |
| endoplasmic reticulum | The ____ is the organelle that transports materials like proteins around the cell. |
| ribosome | A____ is a protein factory in the cell. |
| golgi body | Proteins move from the ribosome to the ___ for packaging before distribution around the cell. |
| lysosome | Enzymes found in a _____ are used to break down old cell parts that are then recycled by the cell. |
| cytoskeleton | Fibers inside the cell that give structure and shape are called the____. |
| chloroplast | an organelle that converts light energy into chemical energy in the form of molecules. |
| cell wall | Animal cells can change shape to move because they don't have a ____, which is what makes plant cells rigid. |
| nucleus | Eukaryotic cells all have a ____ that contains DNA. |
| chlorophyll- | the main pigment used in photosynthesis that absorbs blue and red light and reflects green light. |
| organelle | a structure inside of a cell that helps it perform its functions |
| cell | the smallest unit of a living thing |
| homeostasis | the process of maintaining a life-supporting internal environment |
