Assignment 02: Exploring language diversity where you live Compiled by Hannelie Millar – student 49498843 Instructions: Task 1: Observe your community • Go out into the community where you live for one or two afternoons or evenings. For an example‚ we put a photo from the Bree taxi rank in Johannesburg. • Observe what you see around you. o Who is talking with whom? o What language are they using? o Why do they use one language or another? • Why do you think people are acting the way they do? Try
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rate of respiration of yeast? Apparatus: 1. Stopwatch with a resolution of 0.001 seconds 2. 4 test tubes 3. 200 ml of yeast in a beaker 4. 200 ml of glucose solution 5. 500 ml of limewater 6. 2 delivery tubes 7. 1 test tube rack 8. 1 water bath set to 37°C 9. 2 pipettes 10. 3 measuring cylinders with a resolution of 1ml‚ ranging from 0-30ml. 11. 200 ml of water Hypothesis: The higher the concentration of sugar: the faster the rate of respiration. I predict
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In the yeast discovery lab we had to decided what the outcome would be then perform the experiment. The experiment was done during class time‚ so everyone’s results would be the same. There were four bottles with warm water in them and to those bottles were added yeast. Then to one of each bottle there was added sugar‚ corn syrup‚ corn starch. To the fourth bottle there was only yeast added and used as a control group. Balloons were then stretched onto the top of the bottles to catch any gas the
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oD 4.1 Respiration Why organisms undergo respiration What is respiration and why do we need it? Respiration is the process whereby energy is released from food molecules (most usually glucose). It takes place inside living cells‚ both eukaryotic and prokaryotic. The process takes place inside the cytoplasm and the mitochondria. Energy is used to synthesise adenosine triphosphate (ATP)‚ which acts as a short-term energy store in cells. All living organisms need energy to drive their
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Respiration Objectives 1. 2. 3. 4. 5. 6. To describe oxidation and reduction in terms of electron and H+ transfer. To distinguish anaerobic from aerobic cellular respiration in terms of ATP‚ oxygen‚ and chemiosmosis. To demonstrate that carbon dioxide is a product of cell respiration. To determine the effect of boiling on the aerobic respiration of bean seeds and explain the result in terms of enzyme activity. To measure the rate of oxygen consumption in germinating bean seeds. To determine the
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Yeast which is also known as Saccharomyces Cerevisiae is a unicellular eukaryotic Fungi means that is made up of one cell with a nucleus(“What is Yeast”).Yeast is a very practical product that is used in mainy way like when baking Yeast helps raise the dough and also yeast is used in the process of making wine.The Reason why yeast was chosen to was to see how yeast can metabolize different sugars and how much Co2 they release when when metabolizing.To test the yeast at the lab we used 4 different
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Yeast fermentation Hypothesis - Yeast cells perform fermentation when supplied with a source of energy. Materials Two 250 mL Erlenmeyer flask Water‚ Sugar solution Bromothymol blue solution plastic tubing Rubber tubing Two rubber stopper 50 mL graduated cylinder Medicine dropper Blank slide
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There are more than one forms of fermentation; yeast fermentation is probably the most common method. This process is used in many everyday products today. Yeast was first discovered in 1676‚ but was used before. It has also led to numerous scientific advances. Yeast expands‚ especially well with a good amount of sugar‚ the more of the amount the greater it expands. Yeast is a single-celled organism‚ a fungus to be more specific. They consume carbohydrates‚ mainly sugars‚ and produce carbon dioxide
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Done by: Instructor: Introduction Respiration is the number of processes which leads to the oxidation of organic compounds to produce the energy. There are several types of respiration‚ and one of them is aerobic. During the aerobic respiration‚ human uses the oxygen from atmosphere and produce carbon dioxide. A cardiorespiratory system which includes lungs‚ heart‚ blood vessels and others is responsible for all the processes linked to the respiration and controlled by the nervous system. During
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Topic 8: Cell respiration and Photosynthesis 8.1 Cell respiration 8.1.1 State that oxidation involves the loss of electrons from an element‚ whereas reduction involves a gain of electrons; and that oxidation frequently involves gaining oxygen or losing hydrogen‚ whereas reduction frequently involves losing oxygen or gaining hydrogen Oxidation involves the loss of electrons from an element‚ whereas reduction involves a gain of electrons; and that oxidation frequently involves gaining oxygen
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