science work

4. - protein filaments in the cytoplasm of eukaryotic cells that form part of the cytoskeleton
6. - cell organelle that breaks down lipids, carbohydrates, and proteins into small molecules that can be used by the rest of the cell
10. - flexible double-layered sheet that makes up the cell membrane and forms a barrier between the cell and its surroundings
12. - organism whose cells contain a nucleus
13. - fluid portion of the cell outside the nucleus
14. - specialized structure that performs important cellular functions within a eukaryotic cell
15. - network of protein filaments in a eukaryotic cell that gives the cell its shape and internal organization and is involved in movement
16. - strong, supporting layer around the cell membrane in some cells

1. - thin, flexible barrier that surrounds all cells; regulates what enters and leaves the cell
2. - tubular structured polymers which are found throughout the cytoplasm and forms a component of the cytoskeleton
3. - cell organelle that stores materials such as water, salts, proteins, and carbohydrates
5. - fundamental concept of biology that states that all living things are composed of cells; that cells are the basic units of structure and function in living things; and that new cells are produced from existing cells
7. - property of cellular membranes that only allows certain molecules to enter or exit the cell.
8. - in cells, structure that contains the cell's genetic material in the form of DNA
9. - unicellular organism that lacks a nucleus
11. - bubble-like membranous structure that stores and transports cellular products, and digests metabolic wastes within the cell
16. - basic unit of all forms of life