Exercise impacts the work that your body and cells do by having your systems work harder to produce more energy faster. It also helps to pump blood more quickly so that oxygen and glucose reach mitochondria faster. It works to increase heart rate and produce/exert carbon dioxide faster. Before exercise‚ the bromothymol took an average of 8.1 seconds to change its color. During exercise‚ however‚ we start to notice a gradual change. With an average of 6.2 seconds‚ it took the BTB 1.9 seconds less
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22‚ 2014 Biology 1112.317 Lab Report Amounts of Carbon Dioxide/ Oxygen Animals are Producing/ Consuming Introduction Every cell needs a source of energy in order to perform their daily functions. However the process to get this energy is different for plant and animal cells. Plants cells undergo a process called photosynthesis where light energy from the sun is used to convert carbon dioxide and water into glucose and oxygen. For animal cells‚ the process is known as cellular respiration by which
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increased consumption of oxygen and nutrients by muscle cells requires more blood supply. The functions of blood include delivering oxygen‚ removing CO2‚ removing heat and delivering nutrients and water. Therefore‚ blood flow is important in cellular respiration‚ which is the process where ATP is produced through the conversion of metabolites‚ also involving the consumption of oxygen and release of CO2 as a waste product. ATP is vital to skeletal muscle contraction‚ since the power stroke is facilitated
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Red Cabbage Indicator Aim – To create a pH indicator out of a red cabbage solution and to construct a basic pH scale to determine the pH of unknown solutions. Materials - • red cabbage leaves • 250 mL beaker • hotplate or Bunsen burner‚ tripod‚ gauze mat and bench mat • 10 test-tubes – equal size • test-tube rack Methods - Part A: Making the indicator 1. Tear up one or two red cabbage leaves‚ and place them in the beaker with enough water so that the cabbage is just covered. 2. Heat the beaker
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Life PowerPoint® Lecture Presentations for Biology Eighth Edition Neil Campbell and Jane Reece Lectures by Chris Romero‚ updated by Erin Barley with contributions from Joan Sharp Copyright © 2008 Pearson Education‚ Inc.‚ publishing as Pearson Benjamin Cummings Overview: Inquiring About the World of Life • Evolution • Biology Response Evolutionary to the environment adaptation • Life is recognized by what livings things do • Biology consists of more than memorizing factual details
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Name of Student: Bal Krishna Maharjan Course: Food Microbiology 17/FA Describe how to isolate and differentiate between molds and yeasts? Answer: Isolation of molds: Isolation of molds can be done in two ways: 1. Direct isolation: Under this different methods can be selected depending upon the nature of molds and need of study. The following are the different direct isolation techniques. a. Direct transfer: Involves simple transfer of a mold from its source to a pure culture‚ usually consists of
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purpose of this experiment was to study the rate of phagocytosis of the specific protist known as Tetrahymena vorax. This certain kind of protist feeds at a normal rate when conditions are normal. We began the experiment of understanding how Tetrahymena feeds at normal temperatures. Doing so‚ we allowed the Tetrahymena to feed at specific time limits and then killed the protist with gluderaldheyde to detect how much the protist gained. We then counted how many food vacuoles were filled with India ink
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How Cold Affects The Body B Y: G E N E S I S P O N C E How Cold Affects The Body The body tries to maintain body temperature by vasoconstriction and shivering. Shivering is the body’s main involuntary defense against the cold producing body heat by forcing muscles to contract and relax rapidly. Vasoconstriction is the tightening of blood vessels Vasoconstriction occurs in the uncovered skin when it is exposed to cold temperatures. The reduced blood flow in the skin conserves body heat
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Biology- Change in pH Aim: To investigate the affect that change in pH levels has on a particular enzyme‚ in this case amylase. Hypothesis: In this investigation I expect as the pH reaches the optimum level‚ the rate of reaction will be fastest‚ compared to other pH levels. It is also suspected that after the enzyme has reached optimum level the enzyme activity will decrease. Through further study of the optimum level of amylase I found that the enzyme usually has an optima pH of 8. It is known
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through the heart. Explain how heartbeats are controlled. Define a heart attack and cardiovascular disease. Explain what causes them and what can be done to reduce the chances of developing cardiovascular disease. 23.4 23.5 23.6 Structure and Function of Blood Vessels 23.7 23.8 Relate the structure of blood vessels to their function. Explain how and why blood pressure changes as blood moves away from the heart. Explain how blood is moved back to the heart. 23.9 Explain how blood pressure is measured
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