purposes. The mitochondrial matrix receives pyruvate from the cytoplasm after it crosses over the mitochondrial membrane. When the pyruvate enters the Krebs cycle it goes through many stages of biochemical enzyme-catalyzed reactions. In more detail about the cycle its main purpose is to produce little amounts of ATP by removing carbon dioxide and hydrogen from pyruvate molecules. Within the inner membrane of the mitochondrion the electron transport chain and chemiosmosis synthesis ATP with hydrogen
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occurred during the experiment was that some flies became stuck in the food source and died. The main cause of this was the fact that the fly vials were stood up (vertically) before the flies had fully recovered from the anaesthetic. This could be overcome in future experiments by ensuring that the vials are kept horizontal until all of the flies fully recover from the anaesthetic. One possible error that may have occurred was that some of the adult flies may have accidentally been left in the vials
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frog moth butterfly Grass Discussion In the pratical numerous organisms were detected; most of these organisms could be said to have 4 to eight legs. It is evident that some could fly and some could not ly. The trophic levels ranged from one to four; while the auto-troph was a tamarind tree and some grass. The herbivore was a butterfly which fed entirely on the tamarind tree. Also‚ a carnivore which fed on more than one
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observe the selected four invertebrates and familiarize ourselves with their taxonomic levels through the organism’s mechanisms of feeding‚ motility‚ and reproduction. Our group used the prior knowledge we possessed about the Hydra‚ Rotifer‚ Gammarus‚ and Planaria organisms to complete the lab. We knew that all of these small invertebrates have a freshwater habitat. Each organism differs in taxonomic levels from Genus to Species. We knew that the Hydra reproduces with one of two methods: 1) by “budding”
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Diffusion: Temperature’s Effect on Diffusion: We added potassium to a two tubes with different temperatures: Temperature Result Room Temperature Slow change in Color Boiled water Fast change in Color Conclusion : The increase in temperature assists in increasing the speed of diffusion. Diffusion of Glucose and Starch: A. Color Change: State/Results In the Tube In the Beaker Color Glucose Color Glucose Initial State (Before placing tube into graduated cylinder) Transparent Yes
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Period 1 10/14/12 Enzyme lab Enzymes are biological catalysts that speed up the process of chemical reactions. They are also proteins‚ and most enzymes activities occur within organism. They decrease activation energy‚ energy that is needed to start a chemical reaction. Enzymes are substrate specific substrates ending in "-ase"‚ enzymes ending in "-ase". External factors‚ such as temperature‚ pH‚ and concentration of the substrate‚ affect the enzymes activity in the lab‚ pectase and cellulase will
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Radio Lab: Inheritance Go here: http://www.radiolab.org/story/251876-inheritance/ Listen to the free podcast and complete worksheet. You only need to listen to the first 3 stories. Though‚ the 4th is VERY interesting. 1. What was Lamarck’s big idea? What a person does in their lifetime could be directly passed to their kids. 2. What human example did Lamarck use? A blacksmith‚ because they swing hammers all day they get muscles and those muscles pass down to their kids. 3.
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What are probable sources of acid precipitation in your community? What impact can this have on the environment in your region? Some of the probable sources of acid precipitation is Fog‚ and rain. During the summer it hardly rains which makes it hard for our crops to grow‚ also since we are in the valley it makes it hard for us to get the water that we need. During the fall it gets very foggy in the mornings and it makes it very difficult to see while your driving. Prevailing winds can also
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Siddharth Tirumala Mrs. Kiriazis IB1 Biology 22 August 2013 Diffusion Lab Write-Up Research Question: How does the temperature of the water affect the diffusion of food coloring? Hypothesis: Food coloring will dissolve faster as the temperature of the water increases. Variables: Name of Variable | What is it? | How is it measured? | Units | Range of the data | Independent | Temp. of Water | Thermometer | oC (Celsius) | | Dependent | Rate of diffusion of food coloring | Stopwatch
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stimulus that helps it search for the food (Stocker et al. 2007). There are flies such as dragon‚ house flies and various other flies in diptera order. Flies are attracted to sugar and seem to have certain neurons that activate upon encountering the sugary content. The compounds contained sugars‚ salts‚ bitter food‚ and certain other Molecules are detected by gustatory neurons‚ which are widely distributed in the body of the fly (Stocker et al. 2007 ). Neurons that influence feeding behavior are present
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