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studyguide part 1

by: Brooke Martin

studyguide part 1 Biology 2107

Brooke Martin
GPA 3.9

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exam 2 on thursday
Principles of Biology
Eric Gilbert
Study Guide
Bio, GSU
50 ?




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This 4 page Study Guide was uploaded by Brooke Martin on Monday February 22, 2016. The Study Guide belongs to Biology 2107 at Georgia State University taught by Eric Gilbert in Spring 2016. Since its upload, it has received 30 views. For similar materials see Principles of Biology in Biology at Georgia State University.


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Date Created: 02/22/16
1. What bonds/interactions hold the cell membrane together? a. Vander Waals b. Hydrophilic c. Hydrophobic d. More than one of the above are correct i. (A & C are correct) 2. What does it mean to be amphipathic? a. To move ions and molecules across a membrane i. Incorrect. This is the definition of a transporter b. To catalyze reactions i. Incorrect. This the definition of an enzyme c. To contain hydrophobic and hydrophilic regions i. CORRECT d. To be permanently attached to a membrane i. This is the definition of an integral protein 3. Which membrane protein can be separated from the membrane? a. Integral i. No, these permanently attach to membrane b. Peripheral i. CORRECT c. Transmembrane i. Three regions; two hydrohydrophillic and one hydrophobic d. Matrix i. This is the most interior space of the mitochondria 4. Transmembrane protein have three regions. What are they? a. Two hydrophilic and one hydrophobic i. CORRECT b. Two hydrophobic and one hydrophilic c. One hydrophilic, one hydrophobic and one hydrophalic d. More than one of the above i. Incorrect 5. How is homeostasis maintained? a. Selective barrier b. Hydrophobic layer c. Charged polar molecules d. More than one of the above i. All of the above are correct 6. Passive and active transport are examples of? a. Diffusion i. CORRECT b. Osmosis i. When water goes from a higher concentration to lower concentration c. Primary transport i. Type of active transport that uses ATP d. Secondary transport i. Type of active transport that uses electro chemical gradient TRUE OR FALSE 7. Prokaryotes have a nucleus a. F 8. eukaryotes have organelles a. T 9. Cytosol surrounds organelles a. T 10.Chloroplast is found in eukaryotic cells a. F – only plant cells 11.Genes are transferred via pili in eukaryptes a. F – carried in prokaryotes FILL IN THE BLANK 12.VESICLES are small enclosed sacs used for transportation and make up the endomembrane system. 13.The part of the cell responsible for modifying and sorting proteins and lipids is GOLGI APPARATUS. 14.Lysosomes BREAK DOWN macromolecules. 15.The ROUGH ER is where ribosomes bnd to cytosolic surface, while the SMOOTH ER is for lipid and steroid storage. 16.Chloroplasts contain THYLAKOID which are light collecting molecules. 17.PHOTOTROPHS get energy from sunlight. 18.CHEMOTROPHS get carbon from other organic molecules. 19.AUTOTROPHS get carbon by making their own. 20.HETEROTROPHS rely on other organisms for carbon. 21.The branch of metabolism that breaks down is CATABOLISM, th branch that builds up is ANABOLISM. 22.IRREVERISIBLE INHIBITORS inactivate enzymes permanently through covalent bonds. 23.COMPETITIVE INHIBITORS bind to active site and are structurally similar to the substrate. 24.NONCOMPETITIVE INHIBITORS alter the shape of the active site and reduce activity. 25.Exergonic reactions have a negative ∆G which means… a. The reaction releases energy i. correct b. The reaction absorbs energy i. This would be an enderogonic reaction c. The forward reaction is equal to the reverse reaction i. This is dynamic equilibrium d. More than one of the above i. Incorrect 26.The hydrolysis of ATP results in what? a. H2O b. Enzyme c. Energy d. Substrate 27.As inhibitors are to decreasing activity, activators are to… a. Decreasing activity b. Increasing activity c. Increasing free energy available d. Decreasing free energy available 28.Type of enzyme that changes shape and activity of enzyme? a. Allostoreic i. incorrect b. Cholesterol i. In animal cell membranes c. Amphipathic i. This is the structure of the cell membrane that has hydrophilic and hydrophobic regions d. Allosteric i. Correct 29.Cellular respiration is what type of reaction? a. Oxidation b. Reduction c. Catabolic i. Breakbown d. Anabolic i. Build up 30.All of the following are steps in cellular respiration except… a. Citrus acid cycle i. CITRIC acid cycle breaks down acetyl coA and produces CO2 b. Acetyl Coenzyme A production i. Synth from pyruvate c. Glycolysis i. Small amount of fuel is produced d. Oxidative phosphorylation i. Electron transport chain produces ATP 31.Where does the partial oxidation of glucose to yield a small amount of ATP take place a. Chloroplast b. Mitochondria c. Cytoplasm d. Nucleus 32.In a redox reaction, the reducing agent ______ and the oxidizing agent _______. a. Loses an electron; gains an electron b. Gains an electron; loses and electron c. Oxidizes; reduces d. More than one of the above 33.In cellular respiration, two important electron carriers that are oxidized are… a. NADH and FADH2 b. NAD and FAD c. ATP and ADP d. HCl and NaOH 34.Which stage provides the most ATP a. Substrate level phosphorylation i. Transfer phosphate from organic molecule to ADP b. Oxidative phosphorylation i. Correct c. Citric acid cycle i. 2 ATP created


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