Define the standard reduction potential. Why aerobic grow generates the highest amount of energy (ATP). How this value plays a role in organization of electron transport system. Compare Eo of aerobic and anaerobic respiration 3. Describe the flow of electron in fermentation and respiration. What happened to the electron in each of the above processes 4. Describe how enzymes are involved in chemical reactions. (activation energy‚ lowering Eo 5. Define apoenzyme andcofactor. What is the
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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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1. What is life? Life is the state of a material‚ complex or individual‚ characterized by the capacity to perform certain functional activities which include metabolism‚ growth‚ reproduction‚ and some form of responsiveness and adaptation. 2. What are the characteristics of living things? Organization Homeostasis Metabolism Growth Adaptation Response Reproduction 3. Create a table with two columns with the headings living and non-living and place the following under the appropriate columns
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glycogen breaks down into ATP as well as lactic acid. This system supplies ATP slower than the Phosphocreatine system. The body cannot produce enough ATP to maintain this energy source for longer than around 2 minutes. There is a limit to anaerobic respiration because of the lactic acid. The buildup of lactic acid will end up stopping the movement of the muscles are it beings to become painful. The anaerobic energy system is commonly associated with the 400m sprint‚ 100m swim‚ most teams sports and
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carried out by living organisms. This process is carried out in two different ways: anabolic and catabolic. The catabolic breaks down large chemical compounds while anabolic synthesizes components to create larger molecules. Respiration provides energy for these reactions‚ and respiration needs oxygen to occur. Thus‚ calculating the change in oxygen can determine metabolic rate (University‚ 59). In this experiment‚ we will observe and analyze the oxygen consumption of Carassius auratus‚ also known as goldfish
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Cancer cells produce energy at a rate of two ATPs per glucose molecule. Cancer cells make more glucose for energy for the cell. Respiration dysfunction in cancer cells prevents glucose oxidation. Without glucose oxidation‚ cells aren’t able to turn that energy into the chemical form cells use.1 Mitochondria have a way of shutting off the cell so it doesn’t mutate. When cells get older
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“Investigate the factors affecting the rate of yeast respiration” Lab Report Introduction The aim of this experiment was to investigate the effect of different amounts of a substrate on the respiration rate of yeast and to compare this to the effect of different amounts of glucose on the rate of yeast respiration. The substrate which I chose to further investigate was fructose. Fructose is a fruit sugar which is one of the three‚ along with glucose and galactose‚ dietary monosaccharides that
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ATP and its Role in Living Organisms An exemplary biology essay ATP (adenosine triphosphate) is vital to living organisms. It acts as a short-term store of energy in a cell‚ carrying it from where it is synthesised (e.g. the mitochondria) to where it is needed for biological processes. It is well suited to this job for the following reasons: it is small and soluble (and so can be easily transported around a cell); it is easily broken down to release energy; it can transfer energy to other molecules;
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CE BIO 1994 1. (a) (i) The formation of red precipitate indicates the presence of reducing sugar (glucose) in the water ------------------------------------------------------------------- 1 This shows that the dialysis tubing is permeable to glucose / permits the diffusion of glucose into the external solution ------------------------------------------ 1 (ii) (1) Increased amount of precipitates in set-up a indicates the presence of more reducing sugar -------------------------------------------------------------
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of two ATPs are produced as the process uses two ATPs and produces four. Glycolysis consists of ten chemical reactions; each reaction is catalysed using a different enzyme. Oxygen is not required during glycolysis so it is considered anaerobic respiration. Glycolysis must be regulated so that energy is produce only when required. During glycolysis there are three enzymes that catalyse or inhibit the rate of reaction. These are hexokinase‚ phosphofructokinase and pyruvate kinase. During the first
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