Transcript ANSWER
Chemistry of Life Review Activity Copyright ©2004 MathBits.com Organic Compounds More organic! Water & stuff Enzymes Misc! 10 10 10 10 10 20 20 20 20 20 30 30 30 30 30 40 40 40 40 40 50 50 50 50 50 10 points Two elements always contained in organic molecules Return to Question Board See Answer 10 points A N S W E R: Carbon and hydrogen Return to Question Board 20 points Benedict’s solution is used to test the presence of what organic molecule? Return to Question Board See Answer 20 points A N S W E R: • monosaccharides Return to Question Board 30 points Venus Flytraps obtain much of their nitrogen from amino acids found in the insects. Which of the chemical compounds are the source of the amino acids? Return to Question Board See Answer 30 points A N S W E R: proteins Return to Question Board 40 points Monomers for carbs, lipids, proteins, and nucleic acids? Return to Question Board See Answer 40 points A N S W E R: Carbs = monosaccharides Lipids = glycerol & fatty acids Proteins = amino acids Nucleic acids = nucleotides Return to Question Board 50 points What is the function of carbs, lipids, proteins, & nucleic acids? Return to Question Board See Answer 50 points A N S W E R: Carbs = immediate energy; structural support (plant cell walls) Lipids = long-term energy storage; cell membrane structure Proteins = motion, defense, signals, chemical rxns, transport, etc. Nucleic acids = Store and transport important information Return to Question Board 10 points What organic molecule is found in potatoes? Return to Question Board See Answer 10 points A N S W E R: Carbohydrates (starch) Return to Question Board 20 points What organic molecule is responsible for storing and tranferring our genetic information? Return to Question Board See Answer 20 points A N S W E R: Nucleic acids Return to Question Board 30 points What are the building blocks for all 4 organic molecules? Return to Question Board See Answer 30 points A N S W E R: Carbs = monosaccharide Lipids = fatty acid chains Proteins = amino acids Nucleic acids = nucleotide Return to Question Board 40 points What are the elements in each macromolecule? Return to Question Board See Answer 40 points A N S W E R: Carbs = C,H,O Lipids = C,H,O Proteins = C,H,O,N Nucleic acids = C,H,O,N,P Return to Question Board 50 points What parts of the cell would you find ALL of the organic molecules? (hint: different parts for all) Return to Question Board See Answer 50 points A N S W E R: Carbs = chloroplast makes it Lipids = found in cell membranes Proteins = ribosome makes it Nucleic acids = found in nucleus Return to Question Board 10 points What is the function of vitamins and minerals? Return to Question Board See Answer 10 points A N S W E R: •Nutrients that help organic molecules and their functions •Acts as “ingnitions” for chemical rxns Return to Question Board 20 points What is polar or nonpolar? Return to Question Board See Answer 20 points A N S W E R: Polar = uneven charge distribution Nonpolar = even charge distribution Return to Question Board 30 points Describe the structure of water Return to Question Board See Answer 30 points A N S W E R: “mickey mouse” Bent shape – due to polarity Uneven distribution of charge! Return to Question Board 40 points What is the difference between organic and inorganic? Return to Question Board See Answer 40 points A N S W E R: Organic – contain carbon-based molecules and hydrogen “living things” Inorganic – non-carbon based “non-living things” Return to Question Board 50 points The human stomach has an acidic environment. If I, II, III, and IV on the scale above represent enzymes, which one most likely functions in the stomach? Return to Question Board See Answer 50 points A N S W E R: III – pH of 3 0-6.9 = acid 7.1-14 = base Return to Question Board 10 points What organic molecule are enzymes? Return to Question Board See Answer 10 points A N S W E R: proteins Return to Question Board 20 points Describe the “lock and key” analogy and why it is used to describe enzymes Return to Question Board See Answer 20 points A N S W E R: “Lock & Key” = SPECIFIC substrate attaches to active site, changes, and released as products. Return to Question Board 30 points What do enzymes do to chemical reactions? Return to Question Board See Answer 30 points A N S W E R: Alter the rate (SPEED IT UP) Lower activation energy Return to Question Board 40 points What environmental factors influence how well an enzyme does its job? Return to Question Board See Answer 40 points A N S W E R: Temperature ** pH Substrate concentration Return to Question Board • Describe the steps in a 3step process for enzymes • Label all the parts listed 50 points D1 & D2 B C A A D 1 & D2 Return to Question Board See Answer 50 points A N S W E R: •A = enzyme – remains unchanged! •B = substrate •C = enzyme-substrate complex •D1 & D2 = products Return to Question Board 10 points What are the functions of vitamins and minerals? Return to Question Board See Answer 10 points A N S W E R: Act as coenzymes and cofactors, working with enzymes to make chemical reactions possible Return to Question Board 20 points Define homeostasis. Return to Question Board See Answer 20 points A N S W E R: Maintain an internal environment despite changes in the external environment “to stay the same” Return to Question Board 30 points Name 3 important vitamins and their function. Return to Question Board See Answer 30 points A N S W E R: Vit K = clotting Vit D = bone growth Vit C = healthy gums Return to Question Board 40 points Put the following in order from least to greatest: molecule, atom, organ system, cell, tissue, organ Return to Question Board See Answer 40 points A N S W E R: Least to greatest: Atom – molecule – cell – tissue – organ – organ system Return to Question Board 50 points What is an the scientific method, why it is important, and the steps involved? Return to Question Board See Answer 50 points A N S W E R: A method for testing a hypothesis Important to study our observations and how things work, while keeping a controlled experiment Problem/Observe, research, hypothesis (create variables), experiment, analyze data, conclusion Return to Question Board BONUS!!! • Name and define 5 properties of water! • Why is water so important to living things?