1. Explain how photosynthesis and respiration are linked in order to provide you with energy from the food you eat. Include in your paper: •Complete descriptions of photosynthesis and aerobic respiration. •Describe how these two processes are linked between plants and animals based on the reactants and products (water‚ carbon dioxide‚ glucose and oxygen) of both pathways. •Include a description of how energy is transferred from sunlight to ATP‚ from ATP to sugars‚ and from sugars
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MUSCLE FATIGUE HOW DO MUSCLES GET THE ENERGY TO WORK? In muscles‚ it is essential that Calcium is present‚ as this gives the muscles the ability to contract and relax. For muscles to contract energy is needed: the energy can only be provided by the breakdown of a chemical called adenosine triphosphate (ATP). As ATP is broken down‚ a phosphate molecule is broken off‚ reducing the phosphate molecules‚ from 3 to 2. This produces adenosine triphosphate. However for the muscles contraction to continue
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UNIVERSITY OF PORT HARCOURT COLLEGE OF NATURAL AND APPLIED SCIENCES FACULTY OF BIOLOGICAL SCIENCES DEPARTMENT OF ANIMAL AND ENVIRONMENTAL BIOLOGY A REPORT ON RESPIRATION IN INVERTEBRATES COMPILED & PRESENTED BY DEPARTMENT OF ANIMAL AND ENVIRONMENTAL BIOLOGY 2012/2013 SESSION COURSE: FSB201 (CELL BIOLOGY) COURSE LECTURER: DR. NOUTCHA DATE : 7TH MARCH‚ 2013 INTRODUCTION Respiration is one of the characteristics of ALL LIVING THINGS. In the simplest terms‚ "respiration" simply means "breathing"
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Definition/comparison questions Evolution / Selection Evolution is a slow continuous process of change that happens in plants and animals over a long period of time resulting in a change from simpler to more complex forms. This is the reason modern day plants and animals are different from those of past. The competition for resources will favour organisms with better adaptability and certain variations over others hence leading to change in the rate of occurrence of certain traits within that population
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and the third being regeneration of the carbon dioxide acceptor or the creation of ribulose bisphosphate. This dark reaction takes place in the stroma of the chloroplast. Whereas in cellular respiration there four main parts. The first part being glycolysis which includes four steps‚ this breaks down glucose into pyruvate. Second we have the oxidation of pyruvate‚ this changes the pyruvate into acetyl-CoA then the kreb’s cycle starts. Kreb’s cycle has three segments and nine reactions producing three
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any processes that involve the conversion of NAD+ to NADH. Because both glycolysis and the Krebs cycle produce NADH‚ both of these processes shut down when there is no available NAD+. 5. If the Krebs cycle does not require oxygen‚ why does cellular respiration stop after glycolysis when no oxygen is present? When no oxygen is present‚ oxidative phosphorylation cannot occur. As a result‚ the NADH produced in glycolysis and the Krebs cycle cannot be oxidized to NAD+. When no NAD+ is available
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Cellular respiration is the process of converting chemical energy of organic molecules such as glucose into a form of energy usable by organisms. This energy is mainly produced in the mitochondrial matrix and takes form in the molecule adenosine triphosphate [also known as ATP]‚ which is made up of an adenosine with a three phosphate tail group. The reason why ATP produces energy is due to the loss of the third phosphate group. The third phosphate‚ when released‚ releases the bond energy and supplies
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monosaccharide into two molecules of pyruvate called glycolysis. Glycolysis is an energy dependent process; however it can not get its energy directly from sugars such as glucose so an alternative is needed. During respiration energy is released‚ that energy is then converted into ATP. ATP is made from inorganic phosphate and ADP. The energy released from respiration is then stored in the bond (phosphate bond) in ATP. This supplies the energy for glycolysis to take place to produce pyruvate. So when respiration
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Understanding Health Related Physical Fitness 1. What are 8 different health reasons to exercise given in the reading? ■increases longevity ■reduces risk for heart disease ■reduces risk for diabetes ■maintains work capacity ■helps reduce high blood pressure
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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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