Aim: To investigate the effect of skin sensitivity in response to cold temperature in different parts of the body by timing the maximum amount of time in which ice-pack can be held to that area. Hypothesis: If the layer of skin is relatively thin‚ the nerve response to cold will be the fastest‚ increasing the skin’s sensitivity. This therefore means that the fastest responses to cold will be in the face‚ and specifically the nose. The skin consists of 3 main layers; the epidermis‚ dermis and
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Enzyme Catalase Activity in Reaction with the Substrate Hydrogen Peroxide Abstract We performed these experiments to observe the effects of enzymes on the rate of reactions. We tested and compared the activity of the enzyme catalase on the substrate H2O2 in various states and percentages‚ and observed the absorption values of the enzyme-substrate relationship at different concentrations. Our results show that the more substrate available‚ the quicker the reaction will happen except in one test
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randomize our data we had a sheet of random numbers that we used and we had four cases of replication‚ which went like this: • Rep 1: Bounty‚ School‚ Wal-Mart‚ Viva • Rep 2: Wal-Mart‚ Bounty‚ Viva‚ School • Rep 3: Viva‚ Wal-Mart‚ School‚ Bounty • Rep 4: School‚ Viva‚ Wal-Mart‚ Bounty Other materials we used besides the paper towels were: • A pipette • An iPhone stop-watch • And a three inch by two inch piece of each paper towel Results: Figure 1: Average absorbency times
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perceiving‚ learning‚ and thinking C. behavioral neuroscience—examines the relationship between the nervous system and behavior D. social—examines the processes of behaving in the social environment Answer Key: A Question 4 of 10 1.0 Points Which figure best approximates the percentage of American psychologists who belong to racial minority groups? A. 35% B. 25% Incorrect C. 15% D. 5% Answer Key: D Feedback: This is a figure from
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highest setting‚ place the pot on and time it with a stopwatch. Record the time and temperature of the solution as soon as it begins to boil. Record the data on your table. 3. Rinse pot vigorously to remove impurities‚ and allow the stovetop to cool. 4. Pour 2 cups of water in the pot add 1 tablespoon of salt and stir. Repeat steps 2 and 3. 5. Pour 2 cups of water in the pot then add 1 tablespoon of water. Repeat step 2. Observations When boiling the water it was quite pure and clear. There
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Now let’s pass around the offering plates.” Student Answer: Ad hominem Hasty Generalization Diversion Appeal to Force No Fallacy Points Received: 0 of 1 Comments: Question 4. Question : “You only oppose her policies because you lost the election to her.” Student Answer: Appeal to popularity Appeal to ignorance Hasty Generalization Ad hominem No fallacy Points Received:
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Experiment for the measurement of carbon dioxide and oxygen concentrations and their functions during the act of breathing. Introduction: Humans‚ like all living organisms need‚ O2 in order to live‚ they take the necessary O2 from the atmospheric air. The O2 is transferred from the blood to all cells of the body and serves for oxidation of nutrients for example glucose. By oxidize the nutrients released energy‚ which is necessary for the functions of the human body. During oxidation produces
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structure of the enzyme is mainly dependent on the active site and variable groups. Extreme temperatures or extreme pHs can alter the structure of an enzyme. Enzymes function to lower the activation energy to break the bonds. They achieve this by putting stress and pressure on the bonds or creating a microenvironment for the substrate. Enzymes are regulated by inhibitors or activators and can be inhibited by the products of the reaction‚ called feedback inhibition. Enzymes are catalytic proteins;
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AP Biology August 23‚ 2012 Egg Osmosis Lab Definition of osmosis: The diffusion of water across a selectively permeable membrane from high to low concentrations Hypothesis: If I place an egg in vinegar‚ then the outer layer of the egg is going to become slimy and look like rubber. It will also become larger and bubbles will form on and around the egg. Hypothesis: If I place an egg in corn syrup‚ then the egg will become small and the outer layer will not look like rubber any longer. Day one:
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Activity: 1. Get 1 bag of M&M’s. 2. Guess how many M&M’s are in your bag of M&M’s. Write it down. That is your hypothesis. (DO NOT OPEN BAG) 3. Open your bag of M&M’s and answer your questions (data collection/experimentation) 4. Also‚ be sure to count the total number of M&M’s in your bag and the number of each color M&M in your bag. Fill in the following information as you work: Question: Hypothesis: Repeat this experiment 2 more times. Fill in Table:
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