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Week 4 notes

by: Jacob Edwards

Week 4 notes 1030

Marketplace > Clemson University > BIO > 1030 > Week 4 notes
Jacob Edwards
GPA 3.2

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About this Document

These note cover week 4
General Biology
Dr. William Baldwin
Class Notes
25 ?




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This 2 page Class Notes was uploaded by Jacob Edwards on Friday September 16, 2016. The Class Notes belongs to 1030 at Clemson University taught by Dr. William Baldwin in Fall 2016. Since its upload, it has received 13 views. For similar materials see General Biology in BIO at Clemson University.


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Date Created: 09/16/16
Week 4 Bio 1030  Cells o Diffusion  Tendency of molecules to move from an area of high concentration to a  low concentration  Often goes with the concentration gradient  Transport proteins help in a process called facilitated diffusion o Passive transport  Along the concentration gradient  Requires no energy o Active Transport  Requires energy  Typically moves against the concentration gradient o Osmosis  The passive diffusion of water  Osmoregulation  The control of water balance o Exergonic Reaction  Releases energy in covalent bonds of reaction  A good example is cellular respiration  Uses released energy for ATP o Endergonic Reaction  Requires an input of energy  A good example is photosynthesis  Yields products rich in energy o Metabolism  Total of an organisms chemical reaction  Metabolic Pathway  Builds a complex molecule  Breaks down complex molecules to be simple  ATP o Adenosine Triphosphate o Nitrogenous Base  Adenine o Five Carbon Sugars  Ribose o Three Phosphate Groups o Enzymes  Lower activation energy  Engage at the active site  Can be aided by coenzymes o Feedback Inhibition  The product acts as an inhibitor of one of the enzymes in the path it  produced  Cellular Respiration o Glucose + Oxygen ­> Carbon Dioxide + Water + Heat  Glucose loses hydrogen atoms and oxidizes to Carbon Dioxide  Most organs prefer to run on glucose o Oxygen  Gains Hydrogen atoms  Reduces to water o The movement of elctrons from one molecule to another is called a redox  reaction  The loss of electrons fromone substance is oxidation (Gains charge)  The addition of electrons is reduction (Reduces charge) o NAD +  Important coenzyme in oxidizing glucose  Accepts electrons  Reduces to NADH


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