chapter 3 review.???? the total of all chemical reactions in an organism
TRANSCRIPT
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Chapter 3 Review
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• the total of all chemical reactions in an organism
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Metabolism
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• assist reactions and causes a change, but the always stays the same
• can be used again and again
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enzymes
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• Draw an enzyme breaking down a substrate
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• organisms that make their own food.
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Autotrophs or Producers
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• organisms that cannot make their own food
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Heterotrophs or Consumers
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• when producers convert light energy into chemical energy, or sugars that can be used as food.
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Photosynthesis
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• Where does photosynthesis happen?
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Chlorophyll
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• a green pigment that is used in photosynthesis to capture light.
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Chlorophyll
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• What happens to the excess sugar made during photosynthesis?
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Excess sugar is stored as starches or used to make other
carbohydrates
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• What is the photosynthetic equation?
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• The process in which chemical reactions break down food molecules into simpler substances and release stored energy
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Respiration
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• What is the equation for respiration?
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• In what TWO places does respiration occur?
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The cytoplasm then the mitochandria
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• Cells that do not have enough oxygen for respiration use this to release some of the stored energy in glucose molecules
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Fermentation
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• What are the products of fermentation?
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Lactic acid, alcohol, and carbon dioxide
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• Give me an example of fermentation
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• Movement of substance through the cell membrane without the input of energy
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Passive Transport
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• A group of atoms held together by the energy of chemical bonds
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Molecule
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• The random movement of molecules from an area where there is relatively fewer of them
• Continues to happen until the amount in both areas is equal =EQUILIBRIUM
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Diffusion
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• Made up of two or more elements in specific portions
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Compound
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• the diffusion of water through a cell membrane
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Osmosis
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• transport proteins in the cell membrane are used to move substances in and out of the cell– For example: Glucose molecules are too big to
enter without the help of transport proteins• NO ENERGY!
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Facilitated Diffusion
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• Two or more substances dissolved evenly throughout another substance
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Solution
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• when an input of energy is required to move materials through a cell membrane using transport proteins
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Active transport
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• Negatively charged particles moving around outside a nucleus
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Electrons
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• When the cell membrane folds in on itself, enclosing a substance in a vesicle. The vesicle pinches off and enters the cytoplasm, acting as a transport and storage structure.
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Endocytosis
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• Atoms of the same kind that are bonded together
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Element
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• The vesicles membrane fuses with the cell membrane’s, and the vesicle contents are released
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Exocytosis
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• Smallest particle that makes up all matter solid, liquid, gas
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Atom
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• Occur when different atoms share their outermost electrons
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Molecular Compound
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• Opposite charges attract to form an electrically neutral compound
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Ionic Compound
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• Two or more substances evenly spread throughout a solution, but will eventually settle out
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Suspension
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• Combination of substances that retain their own properties
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Mixture
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• Center of an atom, contains protons and neutrons
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Nucleus
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• An electrically charged atom that has lost or gained an electron
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Ion
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• Type of compound that contains carbon and hydrogen and usually found in living things
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Organic Compound
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• Type of compound that contains elements other than carbon and usually found in nonliving things
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Inorganic Compound
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• When the relative number of molecules of a substance are equal in two areas
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Equilibrium