Biology 20 IB Design Lab Does increasing or decreasing the ph level of a 3% concentration H2O2 (l) solution affect the amount of oxygen released between 15.0ml of the solution and a 5g sample of liver? The reaction is measured by the difference in mass of a balloon that is used to capture the amount of gas released by the catalase enzyme found in liver reacting with a basified 3% H2O2 (l) and an acidified 3% H2O2 (l) . Chemical reactions occur when two or more molecules interact and the molecules
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Multiple-Choice Questions Chapter 2: Marine Ecology 1. Which environment has historically been the most stable? w. desert x. coral reef y. tundra z. tropical rain forest 2. Most sea life is found in which area? w. On or above continental shelves x. In trenches y. Along mid-ocean ridges z. Near deep-sea hydrothermal vents 3. Coastal upwelling results in ________. w. carbon dioxide-rich water surfacing x. warm water surfacing y. mixing of salt and freshwater z. lower high tides 4. The yellow-green
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Chapter 11: Cell Communication Cell-to-cell communication is essential in multicellular organisms. They must communicate to coordinate activities such as growth and development‚ and reproduction. In addition unicellular organisms communicate with each other. Signals may use light‚ or touch but we will focus on chemical signals. 1. External signals are converted to responses within the cell a. Evolution of cell signaling i. In yeast a cells and αcells both secrete chemicals
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Chapter 23 French Revolution Which of the following is an accurate description of the tax system in France in the years proceding the French Revolution? The members of the Third Estate paid almost all of the taxes What does the word plediscite mean? A vote of the people Which of the following did Napoleon NOT accomplish An equal-oppurtunity public education system What strategy did Czar Alexander I use to defeat Napoleon in Russia? Scorched-earth policy Which of the following traits
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Biology notes for FST Project *ADD SUMMARIES AT END OF CHAPTERS UNIT 1 Macromolecules * Large molecules sometimes composed of a large number of repeating subunits * Four major classes: Carbohydrates (made of simple sugar/glucose)‚ Lipids (Glycerol and Fatty Acids)‚ Proteins (Amino Acids) and Nucleic Acids (Nucleotides) * Condensation reaction/dehydration synthesis: a reaction that creates a covalent bond between two interacting subunits. Removal of H from one functional group
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APBIO5._____________________.FR23 2014 December 3‚ Respond to the following. 1. Distinguish genetic drift from gene flow in terms of how they occur and their implications for future genetic variation in a population. Genetic drift‚ defined as the process in which chance events cause unpredictable fluctuations in allele frequencies from one generation to the next‚ can increase or decrease variability within particularly small populations. Certain genotype/phenotype frequencies‚ for example‚ may
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Name Period Chapter 7: Membrane Structure and Function Concept 7.1 Cellular membranes are fluid mosaics of lipids and proteins 1. The large molecules of all living things fall into just four main classes. Name them. Explain what is meant when we say a molecule is amphipathic. 3. In the 1960s‚ the Davson-Danielli model of membrane structure was widely accepted. Describe this model and then cite two lines of evidence that were inconsistent with it. 4
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Energy and Metabolism Chapter 6 Energy and Metabolism • Organisms require the constant input of free energy and matter for growth‚ reproduction‚ and maintenance of living systems • Life requires a highly ordered system ▫ What is free energy? Energy available to do work in any system G What other types of energies do cells use? • Potential ▫ Stored energy ▫ Chemical • Kinetic ▫ Energy of motion Thermal Energy • • • • All forms of energy can be converted to heat Thermodynamics
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World Series 23 times The Uranium isotope used in Nuclear bombs is U235 AOL chat rooms only allow 23 people at a time In the film Airport‚ the mad bomber has seat 23 ***There are exactly 23 charicters‚ numbers and letters‚ on the face of all U.S. coins ***Every 23rd wave crashing on a beach averages twice the size as normal In the film Airplane II‚ the name of the spaceship is XR-2300 230 people died in the conspiracy plagued TWA flight 800 disaster The Unibomber killed or wounded 23 people The
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Chapter 2 Biology and Psychology MULTIPLE CHOICE 1. Which of the following would not be possible without the functioning of the nervous system? a. ideals‚ thoughts‚ and plans c. behaviors‚ emotions‚ and cognitions b. imagery and cognitions d. all of these ANS: D DIF: 2 REF: 2-26 OBJ: 1 MSC: TYPE: Conceptual 2. A(n) _________ is a nerve cell. a. axon c. dendrite b. neuron d. glial cell ANS: B DIF: 1 REF: 2-26 OBJ: 1 MSC: TYPE: Factual NOT: BTC 3. ________
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