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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monoxide consists of one carbon atom and one oxygen atom‚ connected by a triple bond that consists of two covalent bonds as well as one dative covalent bond. Since four of the shared electrons come from the oxygen atom and only two from carbon‚ one bonding orbital is occupied by two electrons from oxygen‚ forming a dative or dipolar bond. This causes a C ← O polarization of the molecule‚ with a small negative charge on carbon and a small positive charge on oxygen. How is it produced? Carbon monoxide
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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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Blood is a necessary component of the majority of living organisms (all vertebrates and some invertebrates); it carries vital nutrients‚ oxygen and proteins to body tissues and carries away waste products. Blood‚ although most commonly red‚ can also be found in such colours as green‚ blue‚ clear‚ pink and violet. However‚ the common misconception surrounding the idea that human blood is blue before oxygenation is false. All human blood is varying shades of red; these wild alternate colours are
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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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called photosynthesis occurs in the chloroplast of the plant cell. During this process‚ oxygen (O2) is created as a waste product and is released into the air for us to breath. The formula for photosynthesis is: (reactants) (products) CO2 + H2O + sunlight ----> C6H12O6 + O2 This formula says that carbon dioxide + water molecules are combined with the energy from sunlight to produce sugar and oxygen. The reactants in photosynthesis (what is used) are CO2‚ water and sun. The plant gets water
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Lab Activity #3: Collection and Identification of Plankton at Lake St.George Discussion Questions 1. Phytoplankton are the organisms that were the most abundant in my sample‚ specifically from the Protista kingdom 2. I think that phytoplankton are more indicative of oligotrophic lakes‚ where-as zooplankton are more indicative of eutrophic lakes. I think this because‚ since phytoplankton are capable of producing their own energy‚ they don’t need the nutrients that eutrophic lakes offer‚ and they would
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to explain that photosynthesis is important. So even though photosynthesis can kill the plant‚ photosynthesis is important‚ because it helps grow food for omnivores and herbivores. Photosynthesis grows plants and trees‚ which produce clean‚ fresh oxygen. Photosynthesis helps us living organisms with lungs breathe. It helps us when plants go through the process called photosynthesis. During this process they snatch three main ingredients from the atmosphere. They need sunlight‚ water‚ and carbon
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cell activities. Anaerobic respiration is respiration in the absence of oxygen‚ hence anaerobic bacteria does not breathe at all. The purpose of respiration is to provide the cell with the appropriate molecules for creating energy in the form of adenosine triphosphate‚ ATP Many types of bacteria respire anaerobically. In other words‚ they can go through the process of respiration without oxygen present. Instead of using oxygen to help them burn the energy in their food‚ these types of bacteria use
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