Active transport: requires that a cell expend energy to move molecules across a membrane against the solute’s concentration gradient (the side where it is more concentrated) Feedback inhibition: Metabolic reaction is blocked by its products. A product acts as an inhibitor of one of the enzymes in the pathway to regulate metabolism. Centriole: a structure in an animal cell composed of microtubule triplets arranged in a 9+0 pattern. An animal usually has a pair of centrioles within each of its centrosomes
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Electron Transport Chain The first step in the electron transport chain process is for the NADH2 produced during glycolysis‚ the intermediate step‚ and the citric acid cycle to be attracted to Complex I (FMN ·FeS)due to its high affinity for NADH2. This attraction pulls NADH2 to Complex I (NAD dehydrogenase) and the two electrons from H2 are pulled off by the FeS (ferrous sulfate) leaving two H+ ions and NAD+. These molecules repel each other and this results in the NAD+ being recycled
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TDDC17 -‐ Lab 3 Part 2 Q5 P (Meltdown) = 0‚02578 P(Meltdown | Ica weather) = 0.03472 b) Suppose that both warning sensors indicate failure. What is the risk of a meltdown in that case? Compare this result with the risk of a melt-‐down when there is an actual pump failure and water leak. What is the
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Unit 2 lab 1: common linux commands 1. try giving the following commands and observe the behavior with each combination of options and arguments. A. list the names of the files in the working directory Is. Desktop Documents Downloads Music Pictures Public Templates Videos B. by default‚ Is does not list files that have hidden filenames 9filenames that begin with a period; Sobell‚ page 190). List the names of all files in the working directory‚ including those with hidden file names. Is
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(Generating) a Nerve Impulse 1. Why don’t the terms depolarization and action potential mean the same thing? They require different things. Action potential requires depolarization and repolarization. Depolarization doesn’t require anything. 2. What was the threshold voltage in Activity 1? 3.0V 3. What was the effect of increasing the voltage? How does this change correlate to changes in the nerve? The action potential increases. 4. How did the action potential generated with the
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Assignment 1 Ashford University Business Research Methods & Tools BUS 642 Dr. Raj Singh Assignment 1 What is business research? Why should there be any question about the definition of research? In business‚ managers need to respond to any issues that may arise in the business. While one may be prone to do this based on past experience‚ the wiser choice would be to use business research to gather the information to make decisions as business research will increase the likelihood that
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Review Questions Exam 2 Although I try to cover all materials thoroughly in these questions‚ anything covered in lecture may appear on the exam. Membrane Transport 1. Describe the cell permeability and membrane transport. What can enter/exit the cell on its own? What requires assistance? Why? 2. Describe membrane potential. What is it? How is it established? How does it influence the transport of charged molecules? What are the components of the electrochemical gradient?
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4 OSI Transport Layer 4.1 Roles of transport Layer 4.1.1 Purpose The Transport layer provides for the segmentation of data and the control necessary to reassemble these pieces into the various communication streams. Its primary responsibilities to accomplish this are: Tracking the individual communication between applications on the source and destination hosts Segmenting data and managing each piece Reassembling the segments into streams of application data Identifying the different applications
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Review Sheet Exercise 1 Cell Transport Mechanisms and Permeability Activity 1: Simulating Dialysis (Simple Diffusion) • Describe two variables that affect the rate of diffusion: Two variables that affect the rate of diffusion are size and concentration gradient. The molecular size vs the MWCO size of the membrane can either increase‚ decrease‚ or prevent diffusion. The greater the concentration gradient the greater the diffusion rate due to molecules moving from areas of higher concentration
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Summary Transport Economics Inhoud Inhoud 1 Chapter 3 3 3.1 definitions 3 3.2 determinants of demand 3 3.3 Peak problem in road transport 4 3.4 elasticity of demand 5 3.5 Market price 6 3.6 market welfare 6 3.7 9/11 and the effects on the market 7 3.8 The problem of rural demand 7 Chapter 4 7 4.1 Definitions 7 4.2 Classification of costs according to their nature 7 4.3 Classification of costs according to their scale 8 4.4 Other types of cost important in TEM 9 4.5 Classification
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