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Chapter 2 vocab

QuestionAnswer
enzyme protein thar catalyzes chemical reactions for organisms
protein polymer made of momomers called amino acids
monosaccharide a carbohydrate with one sugar molecule
polysaccharide a polymer of many monosaccharides
catalyst substance that decreases activation energy and increases reaction rate in a chemical reaction
disaccharide sugars formed when monosaccharides are linked
pH measurement of acidity:related to free hydrogen ion concentration in a solution
digestion process by which large, complex molecules are broken down into smaller molecules that can be used by cells
substrate reactant in a chemical reaction upon which an enzyme acts
product substance formed by a chemical reaction
activation energy energy input necessary to initiate a chemical reaction
carbohydrate molecule composed of carbon, hydrogen, and oxygen; includes sugars and starches
nucleic acid polymer of nucleotides; genetic material of organisms
ATP (adenosine triphosphate) high- energy molecule that contains within its bonds, energy that cells can use
hormone chemical signal thar us produced in one part of an organism and affects cell activity in another part
glycerol three- carbon molecule found in triglycerides
lipid nonpolar molecule composed of carbon, hydrogen, and oxygen; includes fats and oils
monomer molecule subunit of a polymer
phospholipid molecule that forms a double- layered cell membrane
amino acid molecule that makes up proteins; composed of carbon, hyrdrogen, oxygen, and sulfur
RNA nucleic acid molecule that allows for the transmission of genetic information and protein synthesis
nucleotide monomer that forms DNA and has a phosphate group, a sugar, and a nitrogen-containing base
substrate reactant in a chemical reaction upon which an enzyme acts
macromolecule a very large molecule, composed od hundreds or thousands of atoms
amylase any of several digestive enzymes that break down starches
indicator a substance that changes color in the presence of an acid or base
hydrolysis reaction chemical reaction during which molecules of water are split into hydrogen cations
glycogen a white, tastless polysaccharide
steroid any of a large group of fat- soluable organic compounds
cholesterol a sterol that occurs in all animale tissues functioning cheifly as a proctective agent
graduated cylinder a cylindrical container used to precisely measure the volume of liquids
Created by: kfran0112
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