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Created by Terri Street Copyright, 2000 1,000,000 500,000 250,000 125,000 64,000 32,000 16,000 8,000 4,000 2,000 1,000 500 300 200 100 Click to return to question, Cont-P to switch to the pen, cross out two incorrect answers, then Cont-A to switch back to pointer. Click to return to the question and poll the class Click on link to Ask Jeeves, or click on this oval to return to question and ask a friend The smallest unit of matter is called A. atom C. proton B. ion D. neutron A. 100 Atom Back to Board Where are protons found A.proton land B. outside nucleus C. in the nucleus D. outer space C. 200 Nucleus Back to Board After atoms gain or lose electrons, they are called A. onions B. ions C. idiots D. acids B. 300 Ions Back to Board What type of bond involves the sharing of electrons? A. covalent B. hydrogen C. peptide D. ionic A. 500 Covalent Back to Board A substance dissolved in water is called a A. solvent B. suspension C. mixture D. solution D. 1,000 Solution Back to Board What subatomic particles are equal in a neutral atom? A. protons & neutrons C. protons & electrons B. neutrons & electrons D. electrons and ions C. 2,000 Protons & electrons Back to Board Glucose is an example of a A. starch B. monosaccharide C. polysaccharide D. disaccharide B. 4,000 Monosaccharide Back to Board A substance that accelerates a chemical reaction is called A. nucleic acid B. calalyst C. molecule D. heat B. 8,000 Catalyst Back to Board An acid has a pH A. above 7 C. 0-14 B. 0-7 D. below 7 D. 16,000 Below 7 Back to Board Like carbohydrates, lipids contain A. carbon, hydrogen, oxygen, nitrogen B. carbon, hydrogen, oxygen only C. carbon, hydrogen, phosphorus D. carbon, nitrogen, oxygen B. 32,000 Carbon, hydrogen, & oxygen Back to Board Always looking forward to another break! Proteins are A. polymers of amino acids B. monomers of amino acid C. enzymes D. polymers of sugars A. 64,000 Polymers of Amino acids Back to Board The process by which a polysaccharide is formed A. dehydration synthesis B. hydrolysis C. polypeptide D. protein synthesis A. 125,000 Dehydration synthesis or Polymerization Which is main source of energy ? A. Carbohydrates B. Lipids C. nucleic acid D. Protein A. 250,000 Carbohydrates Back to Board The region on an ezyme where a substance bonds is called A. substrate B. nucleus C. open site D. active site D. 500,000 Active site Back to Board An enzyme is a kind of A. lipid B. protein C. monosaccharide D. carbohydrate B. 1,000,000 Protein Back to Board Sorry, try again! Thanks for playing!