Tyler Cowan Professor Foltz Biology 181 April 8th 2015 Lab Report: Respiration Abstract: The objective of this lab was to figure out which has a higher cell respiration rate between crayfish and elodea. In order to figure this out we first set up three beakers to represent our control‚ elodea and crayfish and filled them with 75mL of culture solution which were dechlorinated making the solution acidic. We then had to place both the elodea and the crayfish in separate beakers filled with 25mL of
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Colleen Hamilton AP Lab 4: Determining the Rate of Cellular Respiration of Peas at Varying Temperatures and Stages of Germination I. Purpose and Intro The purpose of this lab is to determine the rate at which germinating peas respirate at varying temperatures and stages of germination. Cellular respiration is the set of metabolic reactions and processes that takes place in an organism’s cells in order to create ATP from sugar. It occurs in the mitochondria and comprises three stages: glycolysis
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ADP‚ Pi‚ and NAD+ is finite (limited). What happens to cellular respiration when all of the cell’s NAD+ has been converted to NADH? If NAD is unavailable‚ the cell is unable to conduct 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
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Cellular Respiration I/ Introduction - Cellular respiration is the cellular process whereby carbon-containing compounds are broken down through the series of reactions that result in the gradual release of energy. - Cellular respiration consumes oxygen (O2) and produces (CO2). Because oxygen is required so cellular respiration is aerobic. - Include metabolic pathways: glycolysis‚ transition reaction‚ the Krebs cycle‚ electron transport system and oxidative phosphorylation. - Overall reaction:
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produce a gas when sugar is available. For the third hypothesis‚ we did not expect yeast to produce a gas when no sugar or other food is available. The reason is that carbon dioxide is a product of respiration and is formed when the yeast respires. Therefore‚ when no food and sugar is available‚ respiration cannot take place. Hence‚ no carbon dioxide is formed.
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CELLULAR RESPIRATION -is the set of metabolic reactions and processes that take place in the cells of organisms to convert biochemical energy from nutrients into adenosine triphosphate (ATP)‚ and then release waste products. The reactions involved in respiration are catabolic reactions‚ which break large molecules into smaller ones‚ releasing energy in the process as weak so-called "high-energy" bonds are replaced by stronger bonds in the products. Respiration is one of the key
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Photosynthesis and cellular respiration go hand in hand‚ but there are differences of the two that most people overlook. Without either of these processes though‚ the human species wouldn’t exist. Along with every other plant or animal. Photosynthesis starts off the cycle‚ with light energy being trapped within the cell and transported into the chloroplast. Water and carbon dioxide follow the similar route of the light energy and as so is collected into the chloroplast. Photosynthesis tends to take
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Chapter 9 Cellular Respiration and Fermentation Life is Work 9.1 Catabolic pathways yield energy by oxidizing organic fuels Intro Catabolic Pathways and Production of ATP 1. Distinguish fermentation and cellular respiration. Fermentation Partial degradation of glucose Uses no O2 Yields some ATP Cellular respiration Complete degradation to CO2 and H2O Requires O2 = aerobic Yields much more ATP 2. Describe the summary equation for cellular respiration
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vital capacity‚ forced expiratory volume‚ minute respiratory volume‚ surfactant‚ and pneumothorax. To describe the role of muscles and volume changes in the mechanics of breathing. To understand that the lungs do not contain muscle and that respirations are therefore caused by external forces. To explore the effect of changing airway resistance on breathing. To study the effect of surfactant on lung function. To examine the factors that cause lung collapse. To understand the effects of
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Chapter 6-Intro to Metabolism METABOLISM= all the chemical reactions in an organism CATABOLIC PATHWAY (CATABOLISM)• release of energy by the breakdown of complex molecules to simpler compounds EX: digestive enzymes break down food ANABOLIC PATHWAY (ANABOLISM) • consumes energy to build complicated molecules from simpler ones EX: linking amino acids to form proteins ORGANISMS TRANSFORM ENERGY ENERGY- capacity to do work KINETIC ENERGY- energy of moving objects POTENTIAL ENERGY- energy
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