AP Biology Chapter 6 & 7 Review

1. An open channel through the cell wall that connects the cytoplasm of adjacent plant cells, allowing water, small solutes, and some larger molecules to pass between the cells.
3. The contents of the cell bounded by the plasma membrane; in eukaryotes, the portion exclusive of the nucleus.
7. A protein with one or more covalently attached carbohydrates.
8. A type of intercellular junction in animal cells that functions as a rivet, fastening cells together.
10. A membrane-enclosed sac of hydrolytic enzymes found in the cytoplasm of animal cells and some protists.
13. An organelle containing enzymes that transfer hydrogen atoms from various substrates to oxygen, producing and then degrading hydrogen peroxide.
14. A membrane-bounded vesicle whose specialized function varies in different kinds of cells.
15. A structure in the centrosome of an animal cell composed of a cylinder of microtubule triplets arranged in a “9 plus 0” pattern.

2. The compartment of the mitochondrion enclosed by the inner membrane and containing enzymes and substrates for the citric acid cycle, as well as ribosomes and DNA.
3. A cellular structure consisting of one DNA molecule and associated protein molecules.
4. A structure present in the cytoplasm of animal cells that functions as a microtubule-organizing center and is important during cell division.
5. The meshwork surrounding animal cells, consisting of glycoproteins, polysaccharides, and proteoglycans synthesized and secreted by cells.
6. The membrane at the boundary of every cell that acts as a selective barrier, regulating the cell’s chemical composition.
9. A membrane-bound sac in or outside a cell.
11. A hollow rod composed of tubulin proteins that makes up part of the cytoskeleton in all eukaryotic cells and is found in cilia and flagella.
12. The semifluid portion of the cytoplasm.