Respiration and Fermentation Lab on-line #10 Objectives: Monitor respiration activity in yeast by observing CO2 production as sugar is metabolized Investigate the effects of temperature on yeast fermentation Respiration Living cells use ATP (adenosine triphosphate) as their energy "currency". The energy released when a molecule of ATP is hydrolyzed (ATP ADP + PO4) is used to drive cellular reactions. To stay alive‚ a cell must continually regenerate its supply of ATP (from ADP
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reproduce by fission. Protozoans-Group of single-celled eukaryotic organisms. protozoans are colorless mobile organisms. They feed on other organisms for their source of energy. Fungi-A non-photosynthetic eukaryotic heterotroph. fungi can consist of yeast‚ mold‚ and mushrooms. They are not microbes. Some are pathogenic and can cause disease in humans and animals. Viruses-Acellular or non-living agent composed of nucleic acid surrounded by a protein coat. Prions-Infectious protein that has no nucleic
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04/09/2013 - Glucose is your basic 6-carbon molecule - Always starts anaerobic in the cytosol – glycolysis – only 2 ATP saved - By the end of the process‚ you get 2 pyruvate – 3-carbon molecules NO O2 - Fermentation 1. Lactic Acid – your muscles ache because of the accumulation of lactic acid. 2. Alcohol Fermentation- ethanol is fancy word for alcohol. Alcohol fermentation is alcohol + CO2 O2 Aerobic * Respiration * Mitochondria * Matrix – Krebs Cycle – C6 – gives you 2
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once the oxygen is gone‚ and the yeast will respire anaerobically. It is proven once it smelled like alcohol. 2. Aerobic respiration occurs in the presence of oxygen‚ CO2 and water are produced‚ and occur in plant and animal cells. In Aerobic respiration‚ glucose is broken down into CO2‚ H20 and ATP; more ATP is released (38). Anaerobic respiration happens in the presence of no oxygen and occurs in many anaerobic bacteria and in muscle cells. During this respiration‚ either lactic acid or alcohol
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Cellular Respiration: ATP Production What is ATP? -stands for Adenosine Triphosphate. -often called the “molecular unit of currency” -a chemical compound which cells use to store energy or to release energy. -consists of the adenine‚ ribose sugar‚ and 3 other phosphate groups. ATP’s main purpose is to transport chemical energy within cells for metabolism. In this production‚ the Mitochondrion is the production centers of ATP. NADH and FADH2 • Are electron carriers that
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plants‚ and take the carbon in the sugars‚ inside their cells they take the energy from the food‚ this is cellular respiration‚ which takes oxygen (product of photosynthesis) and makes carbon dioxide (also used in photosynthesis) ‚ it then gives energy by breaking down the food molecules‚ this is the link between the two. There are two types of cellular respiration; aerobic and anaerobic. Both use the same steps‚ where the sugar created during photosynthesis is broken down. (Audesirk‚ T.‚ Audesirk
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By examining where and when genes are expressed in a cell or organism‚ one can acquire valuable hints to its function‚ for genes compile the genetic make-up of an organism and exploring the function of genes is helping to uncover the complexity of ourselves and of other forms of life (1). Significant developments have been made in gene monitoring techniques specifically in DNA microarrays which only very recently revolutionized genome expression analysis (1). Despite continuous improvements and
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materials‚ are used for life by an organism? Q. 3. What are enzymes? Q. 4. Explain the action of saliva secreted from salivary glands on the food? Q. 5. Name the common process‚ both in the aerobic and anaerobic respirations? Q. 6. Name the products produced by the fermentation of glucose by the yeast cell? Q. 7. Why is it necessary to separate oxygenated and deoxygenated blood in mammals and birds? Q. 8. Name the functional unit of human kidney? Q. 9. The xylem in plants is responsible for __________
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CELLULAR RESPIRATION Prepared by: Ms. Kinsley Meg G. Perez Figure 1. Energy flow and chemical recycling involved in photosynthesis and cellular respiration. Cellular respiration * a process by which energy from food is converted into chemical energy of ATP. * two types of cellular respiration are aerobic and anaerobic respiration. Table 1. Comparison between aerobic and anerobic respiration. Type of respirationCharacteristics | Aerobic | Anaerobic | Requires oxygen | YES |
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that we‚ and all other organisms‚ need to survive. It is produced primarily in the processes of aerobic and anaerobic respiration by oxidative and substrate phosphorylation. 4 molecules of ATP are produced from 4 ADP and 4 inorganic phosphates in glycolysis in the cytoplasm of every cell‚ by the oxidation of a triose phosphate into two molecules of pyruvate. In anaerobic respiration these are the only 4 ATP molecules produced per molecule of glucose as there is no oxygen available for the
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