APBIO 2a Cells and Organelles

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Across
  1. 4. Genetic control center of a eukaryotic cell; it controls the cells activities by directing the synthesis of ____ in the cytosol
  2. 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.
  3. 7. Network of membranes inside and around a eukaryotic cell, related either through direct physical contact or by the transfer of membranous _____
  4. 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
  5. 10. Dense region of DNA in a prokaryotic cell; unlike it's eukaryotic counterpart, it is not enclosed by a ____
  6. 12. A structure in an animal cell composed of cylinders of microtubule triplets arranged in a 9 and 0 pattern; it's involved in ______ _______
  7. 13. Organelle in eukaryotic cells consisting of stacks of membranous sacs that _____, _____ and _____ products of the endoplasmic reticulum.
  8. 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.
  9. 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 _____
  10. 21. Extensive membranous network in a eukaryotic cell, continuous with the nuclear _____
  11. 22. Long, single appendage specialized for movement of the cell, this contains an internal arrangement of "9 + 2" ___.
  12. 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 _____
  13. 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 _______
  14. 26. This double membrane structure that encloses the nucleus contains many ___ through which pass materials into and out of the nucleus.
  15. 28. Network of protein fibers in the cytoplasm of a eukaryotic cell; includes microfilaments, intermediate filaments, and microtubules; these fibers provide ____ ____ and ____ _____
  16. 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: _____ & ____
  17. 30. Digestive organelle in eukaryotic cells; contains hydrolytic _____ that digest the cell's food and wastes
  18. 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. 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. 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. 3. Studded with ribosomes, this part of the membranous network is responsible for making more ____ proteins (such as insulin).
  4. 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.
  5. 7. Substance in which the cells of an animal tissue are embedded; this ____ the cell to its place.
  6. 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 ____
  7. 11. Short, numerous appendages specialized for movement of the cell or of material past the cell, they are wrapped in an extension of the ______ ______
  8. 14. Mid-sized protein fiber that is one of the three main kinds of fibers making up the ____
  9. 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 ____
  10. 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? ___
  11. 19. Membrane-enclosed structure with a specialized function within a cell; a ribosome is not technically considered one of these because…
  12. 20. This type of cell lacking a membrane-enclosed nucleus and other membrane-enclosed organelles, but they do contain ____ which make proteins.
  13. 25. Sac made of membrane in the cytoplasm of a eukaryotic cell; many of these are transported to or from the ____ _____
  14. 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