Acetylcholinesterase (ache) is a protein that catalyzes the conversion of acetylcholine to acetate and choline. when the concentration of ache in an aqueous solution is held constant, the rate of the reaction catalyzed by ache increases with increasing concentrations of substrate. at low concentrations of acetylcholine, a small increase in the substrate concentration results in a large increase in the reaction rate. at high concentrations of acetylcholine, however, a large increase in the substrate concentration results in only a small increase in the reaction rate.

4) this is any functional structure within the confines of a cell; literally a. "small organ; " it usually has a membrane-based structure 5) this is a tiny fluid-filled cavity in the cytoplasm. it can be used for storage of biochemicals. 6) this is a two-part process that ends in the assembly of proteins at the ribosomes within cells. the first part, transcription, begins in the nucleus, when the dna code is transferred to mrna. the second part, translation, takes place at the ribosomes, where both mrna and trna work to assemble proteins. 7) these are singular, relatively long, whip-like organelles that many unicellular organisms use for motion. 9) this holds an organisms hereditary information. 10) energy stored in chemical bonds of molecules. - down 1) this kind of cell from a multicellular organism does not have a large central vacuole. 2) this organelle serves to process and package lipids and proteins in the cell. 3) this kind of cell has a large central vacuole and a cell wall. 8) chloroplast thylakoids are frequently stacked to form these disks. submit