Cell theory

2. organelles, or cell parts, often referred to as the powerhouses of cells.
3. storage areas for cells and important cell parts
7. a watery, gel-like substance made of mostly salt and water that provides a structure for the cell parts so they can move freely within the cell membrane
9. membrane-enclosed organelles that contain an array of enzymes capable of breaking down all types of biological polymers—proteins, nucleic acids, carbohydrates, and lipids.
10. a cell or organism that possesses a clearly defined nucleus
11. the material of which the chromosomes of organisms other than bacteria
12. paired barrel-shaped organelles located in the cytoplasm of animal cells near the nuclear envelope.

1. an organelle within the cells of plants and certain algae that is the site of photosynthesis
4. simple, single-celled organism that lacks a nucleus and membrane-bound organelles.
5. separates the interior of the cell from the outside environment.
6. a spherical structure found in the cell's nucleus whose primary function is to produce and assemble the cell's ribosomes
7. a strong, protective structure that surrounds a plant cell.
8. a small organelle involved in the process of making protein, which is called protein synthesis.