Lab 7 – Cellular Respiration Objectives: • To be able to define cellular respiration and fermentation. • To give the overall balanced equations for aerobic respiration and alcoholic fermentation. • To distinguish between inputs‚ products‚ and efficiency of aerobic respiration and those of fermentation. • Understand the relationship between respiration and photosynthesis. Note: You should perform experiments as described in this handout‚ which are adapted from Starr and
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Goldfish Respiration Abstract The purpose of this experiment is to tests the effects of temperature on the respiration (breathing) rate of goldfish. In order to determine the goldfish respiration change adding small amounts of crushed ice to the water‚ than behavior will be noted. Then‚ the goldfish will experience the same experiment four more times and be noted again. This experiment will be conducted with four students‚ one goldfish‚ a 250 mL and a 150 mL beaker‚ thermometer‚ crushed ice‚
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RESPIRATION * The release of energy from food * All living cells need energy to carry out M R S G R E N‚ contraction of muscles‚ build up of larger molecules (e.g. proteins)‚ maintains steady body temperature (homeostasis) * Aerobic: * needs oxygen * only occurs when a certain amount of oxygen is available * C6H12O6 + 6O2 6CO2 + 6H2O + Energy * releases large amount of energy (2900 KJ) * Anaerobic: * without oxygen * [glucose lactic acid]
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3.01 Cell Cycle Lab Report Safety Notes: * Always handle microscopes and glass slides carefully. * Wash your hands after handling the prepared specimens. Materials: * Compound light microscope * Glass microscope slide with prepared onion root tip specimen Purpose: * understand and identify the stages of the cell cycle and mitosis. * apply an analytical technique to estimate the relative length of each stage of the cell cycle. Hypothesis Procedure: I predict that
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Observing Onion Cells Science 8 Observing Onion Cells ***Do not write anywhere on this piece of paper!!! It will be used again this afternoon!!!***** Instructions. On a piece of paper‚ write the title (see above)‚ the date‚ your block‚ and your name. Then copy out the problem (see below). Problem. What structures can you observe in an onion cell when using a compound light microscope? Hypothesis. On your lab report‚ below your Problem‚ write a Hypothesis that will
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measure the rate of respiration in yeast and find out what factors affect the rate of respiration. I am going to change the concentration of the glucose solution and I’m going to measure the volume of gas produced during respiration in cm³. Yeast contains enzymes. Enzymes speed up a chemical reaction – they’re biological catalysts. Yeast can respire both aerobically and anaerobic; the anaerobic respiration of yeast is known as fermentation. The equation for this type of respiration in yeast is:
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Epidermis Cells Aim: To see if rhubarb changes when it is placed in solutions of different concentrations. Introduction: "Plasmolysis in Rhubarb Epidermis Cells" is an experiment to see whether or not rhubarb changed its cell structure when placed within different types or solutions. "A single layer of plant cell is placed on a micrscope slide and either distilled water or 5% NaCl solution is added to the cells. Osmosis will occur resulting in either turgid cells or plasmolysed cells." (www
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Energy In A Cell – Respiration & Photosynthesis Cellular respiration and photosynthesis are complementary reactions. In this lab‚ you will review both processes and put the steps of each in order of occurrence. You will gain from this exercise an overall understand of how these processes work hand-in-hand in cellular organisms. You will go to the following website: http://glencoe.mcgraw-hill.com/sites/dl/free/0078757134/383932/BL_25.html After reading the guide‚ you will work to move
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picture of a mitochondrion. Label the inner membrane‚ outer membrane‚ cristae‚ intermembrane space and matrix. 2. What are other names for the acetyl co-A formation stage? 3. Why are mitochondria often called the “powerhouses” of the cell? 4. Where in the cell does acetyl co-A formation occur? 5. What has to happen to the end product of glycolysis before the Krebs cycle will take place? 6. What molecule is found at the beginning of acetyl co-A formation? 7. a. How is pyruvic acid changed to
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storage‚ and lastly cellular respiration. All of these ideas are the reason that myself and others have energy to do anything and everything. Photosynthesis is one way plants(plants are the main source of energy for all things)get energy to do things. The reactants of this are water‚ carbon dioxide‚ and although light energy is not a reactant‚ it is necessary once the energy from the seed is gone. Carbon Dioxide needs to be present for photosynthesis to happen. In lab 7.2‚ we put an elodea in one
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