Cells

3. The portion of the endoplasmic reticulum that is free of ribosomes; lipids.
6. A cell organelle constructed in the nucleolus, functioning as the site of protein synthesis in the cytoplasm.
9. A small dense spherical structure in the nucleus of a cell during interphase.
12. The region in a prokaryotic cell consisting of a concentrated mass of DNA.
13. A microscopic network of protein filaments and tubules in the cytoplasm of many living cells, giving them shape and coherence.
14. A complex of vesicles and folded membranes within the cytoplasm of most eukaryotic cells, involved in secretion and intracellular transport.
15. An organelle in the cytoplasm of eukaryotic cells containing degradative enzymes enclosed in a membrane.
17. An organelle "container" that holds waste.
19. A type of cell lacking a membrane-enclosed nucleus and membrane-enclosed organelles; found in Bacteria.
22. The fluid that fills a cell.
23. A protective layer external to the plasma membrane in plant, bacteria, and fungi cells.

1. The chromosome-containing organelle of a eukaryotic cell, the "Control center".
2. The outer membrane of the cell, that lets certain things in and out.
4. A basic unit of living matter separated from its environment by a plasma membrane; the fundamental structural unit of life.
5. A slimy layer around the cells of certain bacteria.
6. The portion of the endoplasmic reticulum studded with ribosomes; proteins.
7. An organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production occur.
8. The membrane surrounding the nucleus within a cell.
10. The plural form of a hair like appendage found on the surface of many bacteria.
11. A plastid that contains chlorophyll and in which photosynthesis takes place.
16. A large organelle "container" that holds water.
18. An organism whose cells contain membrane-bound organelles and whose DNA is enclosed in a cell nucleus and is associated with proteins.
20. One of several formed bodies with a specialized function, suspended in the cytoplasm and found in eukaryotic cells.
21. The plural form of a slender threadlike structure, especially a microscopic whiplike appendage that enables many bacteria to swim.
23. The plural form of a short, microscopic, hairlike vibrating structure.