Enzymes are naturally occurring biological catalysts that are extremely efficient and specific. Enzymes accelerate the rate of a reaction by factors of at least a million as compared to the same reaction without the enzyme. Most biological reaction rates are not perceivable in the absence of the enzyme. The term enzyme was first used by a German pshysiologist Wilhelm Kühne in 1897. There are over 700 different kinds of enzymes that have been identified. Enzymes can be classified into several categories
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Enzyme Catalase What Factors Affect Enzyme Activity Michelina Bartolotto Lab Biology 111B February 2‚ 2014 /media/common.studymode/studymode-upload/stm/files/e1b9a3d6adf94ca848b12159c31f11b0.docx INTRODUCTION Enzymes are proteins that function as biological catalysts (Perry‚ Morton 2007). They maintain the body’s stable internal balance‚ and without them life would
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The Effects of Environmental Stimuli on Animal Behavior AP Biology Emily Olsen April 26‚ 2012 I. Introduction: The purpose of this lab is to test the effect certain stimuli has on the behavior of a terrestrial isopod. These bugs are more commonly known as pill bugs and potato bugs. The objective of this experiment is to determine which kinds of habitats potato bugs favor. Potato bugs have an innate behavior called taxis which will cause the animal to move away from a stimulus that is unwanted
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AP-2 Lab 02 – Lab Report Name: Lab Report: Exercise 2: Blood Purpose: Explain why you did this lab and what if any safety precautions needed to be followed. This lab was done to learn about blood on a micro and macroscopic level. There are safety concerns when using bodily fluids. Gloves were needed and caution with the use of the lancet was important‚ which included keeping it sterile. Activity 1: Observing Your Own Blood Observations: Sketch and describe what you
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Diffusion and Osmosis Through Dialysis tubing We did this experiment to test the diffusion of different substances through dialysis tubing. We used what we knew about diffusion to make predictions on what we thought the mass of the dialysis tubing to be after submerging them for 30 mins and we knew that diffuse occurs from highest concentration to lowest concentration. Since the dialysis tubings are filled with different substances than what they are being put into then they should all gain
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Effects of Temperature on Enzyme Biology Introduction In order to understand the activity of enzymes at different temperatures the ability of the enzyme to function can be measured. This is important in many applications such as Polymerase Chain Reaction for forensics as well as genetics research where manipulation of temperature-dependent enzymes allows for replication of DNA segments. Bennett states‚ “when the energy - measured
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1 of 22 4.0/ 4.0 Points Who proposed that all of the present continents were once joined together in a single supercontinent called Pangaea? A.Alfred Wegener B.Charles Darwin C.Arthur Holmes D. Harry Hess Answer Key: A Question 2 of 22 4.0/ 4.0 Points The scientific community rejected the theory of plate tectonics because Alfred Wegener could NOT A.identify a mechanism to move the continents. B.disprove competing theories that were not accepted by scientists. C.find
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CHM130 Lab 2 Measurements: Accuracy and Precision A. Data Tables (36 points) Place your completed data tables into your report here: Data Table 1 Measurement Data Length of aluminum plastic packet 5 cm Height of aluminum plastic packet 6.5 cm Temperature of faucet water 23°C Temperature of ice water 11°C Volume of water in 10-mL graduated cylinder 10 ML Volume of water in 50-mL graduated cylinder 10 ML Data Table 2 Measurement Data Inside diameter of 50-mL graduated cylinder 2.5 cm
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PART A 1. Buying a new PC. Low Yat Plaza in Jalan Bukit Bintang is a well-known place for computer sales. Assume that you want to buy a new PC for your personal use. Your task is to: i. Make a list of your hardware and software requirements‚ be as specific as possible. (For software‚ you must at least choose 1 type of operating system and 3 application programs.) HARDWARE * CPU (Central Processing Unit): responsible for handling all instructions it receives from hardware components
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AP Lab Seven Genetics of Organisms Dan Torres AP Biology Block 1 January 24‚ 2011 Introduction & Background Fruit flies have made a huge contribution towards knowledge about genetics‚ but for most people‚ they are just annoying insects that are attracted to their fruit. Their scientific name is Drosophila melanogaster‚ and to scientists‚ they have been a key to understand many principles of heredity including sex linked inheritance‚ epistasis‚ multiple alleles‚ and gene mapping. Fruit
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