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Oxygen

Cellular respiration/photosynthesis review

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Photosynthesis in Spinach discs lab

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Metabolic rate in selected invertebrates.

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Practical 2: Metabolic rate in selected invertebrates. Ayman Shaik Abstract In this experiment was designed to determine the metabolic rate of three small invertebrates in relation to the animal?s body mass. The hypotheses for this experiment would be that the animal with the highest Oxygen consumption, would have the highest metabolic rate. The above hypothesis is accepted. The cockroach of the mass 1,07g, has an Oxygen consumption of 4,8ml and the highest metabolic rate of Introduction

Chapter 10 Notes

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Chapter 10 notes Photosynthesis Photosynthesis In Nature All life acquires organic compounds for energy and carbon skeletons by one of two ways - ______________: (autos = self, trophos = feed) - they sustain themselves w/out eating other organisms Photosynthesis In Nature - plants are _________________ because they use light as a source of energy - __________: (hetero = other, different) - live on compounds produced by other organisms Heterotrophs are dependent on photoautotrophs for food and oxygen Photosynthesis In Nature ________________ are the site of photosynthesis in plants All green parts of plants have chloroplasts - color is from ____________, the green pigment in the chloroplasts

Chapter 18 Powerpoint

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Chapter 18: Chemistry of the Environment Priyal Patel AP Chemistry 0pd 18.1 Earth?s Atmosphere Temperature varied due to altitude Decreases with increasing altitude Layer of atmosphere Troposphere Stratosphere Mesosphere Thermosphere Composition of the Atmosphere Not uniform Bombarded with radiation and energetic particles Lighter atoms rise to top N2 triple bond for between Nitrogen atoms O2 Much more reactive Reacts to form oxides 18.2 The Outer Regions of the Atmosphere Outer portion of atmosphere is important in determining conditions of life Upper layer forms outer defense against radiation and high-energy particles Photodissociation Rupture of a chemical bond resulting form absorption of a photon by a molecule Does not form ions Forms two neutral particles

AP Bio Chapter 3 notes

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Chapter 3 ? Water & Fitness of the Environment Effect of Water?s Polarity Polarity of water causes hydrogen bonding Water is made up of 2 hydrogen and 1 oxygen; held together by 1 covalent bond Oxygen is slightly negative and hydrogen is slightly positive ?> polarity Polarity causes hydrogen to be attracted to other oxygen molecules, creating hydrogen bonds; each molecule can be connected to 4 other molecules 4 properties of water Water?s cohesion Stabilization of temperature Expansion upon freezing Versatility as a solvent Cohesion of water molecules Hydrogen bonds keep water molecules sticking together - hydrogen bonds are very weak; they form and reform with great frequency Cohesion: the process in which hydrogen bonds hold the substances together

Campbell Biology 9th Edition Chapter 4 Outline

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Chapter 4 Carbon and the Molecular Diversity of Life Outline Carbon: The Backbone of Life Organisms are made up of chemicals based mostly on carbon Carbon comes into the atmosphere through the action of plants: plants use solar energy to transform CO2 Carbon forms molecules that are large, complex, and varied Organic Chemistry is the Study of Carbon Compounds Organic Chemistry: The branch of chemistry that specializes in the study of carbon compounds Overall percentages of the major elements of life are quite uniform from one organism to the next Chemists learned to make many simple compounds in the lab by combining elements under the right conditions by the 1800s Vitalism: The belief in a life force outside the jurisdiction of physical and chemical laws

Photosynthesis Notes

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Photosynthesis Wednesday, March 06, 2013 11:00 PM ? Photosynthesis Photosynthesis - the process of converting energy in sunlight to energy in chemical bonds, especially glucose 6CO2 + 6H2O + light -> C6H12O6 + 6O2 Begins with light-absorbing pigments in plant cells A pigment molecule is able to absorb energy from light only within a narrow range of wavelengths In order to absorb as much of the entire bandwidth from sunlight as possible, different pigments, capable of absorbing different wavelengths, act together to optimize energy absorption These pigments include the green chlorophyll a and chlorophyll b and the carotenoids, which are red, orange, or yellow

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Michael Treacy 3/3/2010 Pd. 3 Ozone Hole @ TD 1. What is the Ozone and why do we need it in our atmosphere to have a healthier planet? The Ozone is the Gas O3. This gas is located in the Stratosphere and absorbs UV Rays. We need the ozone in our atmosphere because it absorbs 98% of the UV Rays. Without the ozone to filter all these UV Rays many animals would have medical / health problems. 2. Describe how the ozone protects us. The ozone protects us by filtering out and absorbing most of the UV Rays before they reach the earth. Most of the Rays are biologically harmful and know to damage tissues and cells. 3. How is a chlorine atom harmful to the ozone in the stratosphere?

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