Across
- 4. Genetic control center of a eukaryotic cell; it controls the cells activities by directing the synthesis of ____ in the cytosol
- 6. Lacking ribosomes, this part of the membranous network may have many functions, including detoxifying poisons in liver cells, storing calcium in muscle cells, and making ____ in most cells.
- 7. Network of membranes inside and around a eukaryotic cell, related either through direct physical contact or by the transfer of membranous _____
- 8. Organelle containing enzymes to break down fatty acids and detoxify alcohol and peroxides, but unlike ______, these organelles are not part of the endomembrane system
- 10. Dense region of DNA in a prokaryotic cell; unlike it's eukaryotic counterpart, it is not enclosed by a ____
- 12. A structure in an animal cell composed of cylinders of microtubule triplets arranged in a 9 and 0 pattern; it's involved in ______ _______
- 13. Organelle in eukaryotic cells consisting of stacks of membranous sacs that _____, _____ and _____ products of the endoplasmic reticulum.
- 15. This sets a cell off from its surroundings and acts as a selective barrier to the passage of ions and molecules into and out of the cell; it consists of a ___ ____ in which are embedded proteins and cholesterol.
- 18. This membrane-enclosed sac occupies most of the interior of a mature plant cell; some of its possible storage functions are 3 P's: pigments, pisons, or _____
- 21. Extensive membranous network in a eukaryotic cell, continuous with the nuclear _____
- 22. Long, single appendage specialized for movement of the cell, this contains an internal arrangement of "9 + 2" ___.
- 23. Thinnest of the three main kinds of protein fibers making up the cytoskeleton of a eukaryotic cell; a solid, helical rod composed of the globular protein _____
- 24. Thickest of the three main kinds of fibers making up the cytoskeleton of a eukaryotic cell; a straight, hollow tube made of globular proteins called _______
- 26. This double membrane structure that encloses the nucleus contains many ___ through which pass materials into and out of the nucleus.
- 28. Network of protein fibers in the cytoplasm of a eukaryotic cell; includes microfilaments, intermediate filaments, and microtubules; these fibers provide ____ ____ and ____ _____
- 29. Cell structure consisting of RNA and protein organized into two subunits and functioning as the site of protein synthesis; there are 2 types in a cell, depending on their association with membranes: _____ & ____
- 30. Digestive organelle in eukaryotic cells; contains hydrolytic _____ that digest the cell's food and wastes
- 31. Organelle in eukaryotic cells where cellular respiration occurs. Enclosed by two membranes, it is where most of the cell's ___ is made.
Down
- 1. Type of cell that has a membrane-enclosed nucleus and other membrane-enclosed organelles; these cells make up organisms of protists, plants, fungi, and _____
- 2. Structure within the nucleus of a eukaryotic cell where ribosomal RNA is made and put together with proteins from the cytoplasm into ____ subunits.
- 3. Studded with ribosomes, this part of the membranous network is responsible for making more ____ proteins (such as insulin).
- 5. An open channel in a plant cell wall through which strands of cytoplasm connect from adjacent cells; both the plasma membrane and the _____ extend through this.
- 7. Substance in which the cells of an animal tissue are embedded; this ____ the cell to its place.
- 9. Organelle in plants responsible for photosynthesis, converting light energy into chemical energy in the form of sugar molecules; like mitochondria, these also contain circular ____
- 11. Short, numerous appendages specialized for movement of the cell or of material past the cell, they are wrapped in an extension of the ______ ______
- 14. Mid-sized protein fiber that is one of the three main kinds of fibers making up the ____
- 16. Only found in plant cells and some prokaryotes, this provides support and rigidity to a cell; with plants, the main macromolecule in this feature is ____
- 17. This states that cells make up all living things, cells are the basic unit of life, and cells come only from other cells. Who discovered cells? ___
- 19. Membrane-enclosed structure with a specialized function within a cell; a ribosome is not technically considered one of these because…
- 20. This type of cell lacking a membrane-enclosed nucleus and other membrane-enclosed organelles, but they do contain ____ which make proteins.
- 25. Sac made of membrane in the cytoplasm of a eukaryotic cell; many of these are transported to or from the ____ _____
- 27. Aqueous mixture inside a cell between the plasma membrane and the nucleus; in eukaryotic cells, it is a complex mix that holds many _____-enclosed organelles