Unit 2 Study Guide Ch. 5, 6, & 7
Unit 2 Study Guide Ch. 5, 6, & 7 BIOL 2051
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This 3 page Study Guide was uploaded by Emily Banks on Tuesday October 4, 2016. The Study Guide belongs to BIOL 2051 at University of Colorado Denver taught by Dr. Laurel Beck in Fall 2016. Since its upload, it has received 21 views. For similar materials see General Biology 1 in Biology at University of Colorado Denver.
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Date Created: 10/04/16
Unit 2 Study Guide Ch. 5, 6, & 7 Chapter 5 – Questions 1. What is the plasma membrane? 2. What does membrane transport do? 3. What are the 3 components of membranes? 4. What type of structure do membranes have? 5. What is the role of temperature in membranes? 6. What are the functions of a membrane? 7. What are the 4 types of membrane transport? 8. What is diffusion? 9. What is a concentration gradient? 10.Describe how each of the 4 types of diffusion work. 11.What is the difference between exocytosis and endocytosis? 12.What are the 3 types of endocytosis? Chapter 6 – Questions 1. What is metabolism? 2. What is the difference between a reversible reaction and an irreversible reaction? Give an example for each. 3. What are the 2 types of energy? 4. What are the two types of reactions? 5. What are the 2 laws of thermodynamics? 6. What is the difference between exergonic reaction and an endergonic reaction? 7. What does the model of induced fit have to do with the active site? 8. What are the steps of the catalytic cycle? 9. What might influence the ability of enzymes to do their jobs? 10.True or false, many biological catalysts are enzymes, and enzymes are proteins. Chapter 7 – Questions 1. What are metabolic pathways? 2. How do catabolic reactions make ATP? 3. What is cellular respiration? 4. What are the 4 steps of cellular respiration? Chapter 5 – Answers 1. The biomembrane that effectively separates the cell from the environment. 2. Moves items such as molecules or ions from one side of the membrane to the other. 3. Lipids, proteins, and carbohydrates. 4. Semifluid, fluid mosaic (not a rigid structure, made of different types of biological molecules) 5. Temperature keeps the membrane semifluid, at the perfect amount of fluidity. 6. Importing/ exporting, compartmentalizing, protein sorting, cytoskeletal anchoring, ATP/ NADPH production, cell signaling, cell/ nuclear division, cell adhesion 7. Simple diffusion, facilitated diffusion, active transport, vesicular transport 8. The inherent desire of molecules to evenly spread out in a solution 9. When there is more of some solute on one side of the membrane than the other. 10.Simple diffusion: without any sort of protein assistance. Facilitated diffusion: requires the help from a protein. Active transport: moving against the concentration gradient, low to high concentration. Vesicular transport: when a vesicle travels using the cytoskeleton and fuses with the plasma membrane and the contents of the vesicle are dumped into the extracellular fluid. 11.Exo- is when the vesicle buds off the Golgi apparatus and travels Endo- is when the plasma membrane invaginates around some molecule creating a vesicle inside of a cell. 12.Phagocytosis (big stuff), receptor mediated endocytosis (specific items), pinocytosis (“cell drinking” whatever it catches in the extracellular fluid). Chapter 6 – Answers 1. The total of all chemical reactions in an organism. 2. Reversible is a reaction that can be reversed, water. Irreversible cannot be reversed, burning paper. 3. Kinetic: associated with movement Potential: energy a substance possesses due to its structure. 4. Catabolic: breaks down larger molecules into smaller ones Anabolic: builds a larger molecule from smaller ones 5. Energy cannot be created or destroyed, it can only change forms. Transformation of energy from form to form increases entropy. 6. Exer- is a spontaneous reaction, energy releasing, - change in energy Ender- not spontaneous, energy consuming, + change in energy 7. Since there is not a perfect fit between the substrate and the active site, they both change their shapes slightly. 8. Reactants bind to the active site Enzyme goes through a conformational change Reactants are converted to products Products are released 9. Dramatic changes in pH and temperature 10.True, they are made up of proteins, sometimes RNA too. Chapter 7 – Answers 1. Series of chemical reactions that occur as a part of a process. 2. Substrate level phosphorylation and chemiosmosis 3. Process by which cells obtain energy/ liberate that energy from organic molecules 4. Glycolysis: breaking down molecules of glucose into pyruvate Pyruvate decarboxylation: pyruvate is converted to acetyl CoA and CO2 The citric acid cycle: acetyl groups are added to a 4 carbon molecule Oxidative phosphorylation: electron transport chain, series of protein complexes embedded within inner mitochondria membrane
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