Biology Notes 1.02 Sometimes a practice or belief claims to be science but does not follow the scientific method or cannot be proven reliable through experimentation. These practices are examples of pseudoscience‚ which literally means "fake science." Charms‚ astrology = stars‚ and phrenology= reading the bump on skull 1.03 * In the mid 1600s in the Netherlands‚ the scientist Antonie van Leeuwenhoek developed the first known microscope using a single magnifying lens. He was the first person
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Research Question Investigate the effect of temperature on the rate of respiration of various parts of plants (germinating seeds and dormant (non-germinating) seeds)‚ by measuring the oxygen consumption and change in gas volume of respirometers containing either germinating or non-germinating seeds at different temperatures to measure the rate of respiration of these beans at different temperatures. Hypothesis 1.Germinating seeds have a higher rate of respiration as compared to non-germinating
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was to investigate and identify the chemical properties of the gases tested. DATA Gas | FLAME REACTION | GLOWING SPLINT | LIMEWATER REACTION | BROMOTHYMOL BLUE REACTION | Hydrogen | NO REACTION | | | | Oxygen | | BURNED BRIGHTER | | | Hydrogen & Oxygen | QUICK FLAME BURST | | | | Carbon Dioxide | | PUT THE FIRE OUT | NO REACTION | TURNED YELLOW | Alka Seltzer | | | BUBBLED | | Breath | | | HUGE BUBBLES | | CONCLUSION Based off this experiment
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reacts within cells. Cellular respiration is the process by which cells break down sugars (ATP) in order to produce energy for other chemical reactions. Cellular respiration takes place mainly in the mitochondria and the reactants in this process are oxygen and glucose and the main product in this process is ATP as well as waste products which include carbon dioxide and water. Almost all organisms perform cellular respiration. There are two types of cellular respiration
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be aerobic respiration or anaerobic respiration. During the process‚ prokaryotic cells carry out cellular respiration within the cytoplasm‚ or‚ in the inner surfaces of the cells. In cellular respiration‚ the reactants are oxygen and glucose. When an organism breathes‚ oxygen enters into its body. When an organism eats and consumes‚ glucose enters the body. The output of cellular respiration is carbon dioxide and water. During the process‚ carbon dioxide is being taken from the mitochondria out of
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Structure of Gaseous Exchange Surfaces in Humans‚ Fish‚ Insects and Frogs Gaseous Exchange is a biological process where oxygen diffuses into the body or bloodstream and carbon dioxide diffuses out of the body or blood stream. This process is different for Humans‚ Fish. Frogs and Insects. Humans: In humans the gas exchange system is known as the Respiratory system. The respiratory surface is the Alveoli located on Bronchial tubes inside of the lungs. The average human adult has about 600 million
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electron carriers to the next stage. The citric acid cycle occurs only when oxygen is present in the mitochondrion after the cell splits during the first phase glycolysis. What is the role of the electron transport system? Include the reactants and the products. Where does it occur? The electron transport system is the final stage in cell respiration. The main role is to transport electrons formed from NADH to oxygen in order to release the energy cells use to make ATP. Photosynthesis:
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Chapter 4 CLO 1.A branch of chemistry dealing with compounds of Carbon. 2.Carbon’s has 4 valence electrons that can form covalent bonds with others atoms (Hydrogen‚ Nitrogen‚ Oxygen and Carbon atoms mostly) to make large‚ complex and diverse organic molecules. 3.The carbon skeleton vary in 4 areas‚ 1. Length 2. Branching 3. Double Bond Position 4. Presence of Rings. Carbon skeletons can have double bonds in different locations and also different numbers of double bonds. 4.Hydrocarbons
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(floating algae). When these organisms die‚ they undergo decomposition. In order to decompose these dead phytoplankton‚ bacteria need oxygen. As they consume oxygen‚ they create ‘dead zones‚’ or zones devoid of oxygen—and non-bacterial life. It is not the excess nutrients that directly causes the death of ecosystems‚ rather it is the resulting deprivation of oxygen that does them in.
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It’s really extraordinary how humans came to be‚ it all started from atoms‚ a strike of lightning and macromolecules. Carbon atoms have four valence electrons allowing them to form strong covalent bonds with many other elements‚ including hydrogen‚ oxygen‚ phosphorus‚ sulfur‚ and nitrogen. Living organisms are made up of molecules that consist of carbon and these three other elements. Carbon atoms can also bond to each other‚ which gives carbon the ability to form millions of different large and complex
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