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| Life's unique properties emerge when certain kinds of molecules are organized into cells. These "molecules of life" are complex carbohydrates, complex fats and other lipids, proteins, DNA and RNA. |
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| Basis of life genetic material.The signature molecule of life is the nucleic acid called DNA. DNA= Deoxyribonucleic acid. |
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| Organism keep the internal environment within a range that cells can toloerate. This state is called homeostasis, and it is one of the dey defining characteristics of life. |
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List the Classification scheme |
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Keep purple cows off Fred's green sofa. K = Kingdom P = Phylum C = Class O = Order F = Family G = Genus S = Species
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| Who was Charles Darwin's theory? |
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Theory of Natural Selection - They adapt to their enviornment. Survival of the Fittest. |
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| An explanation of the cause of range of related phenomena; has been rigorously tested but is still open to revision. |
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| A group used as a standard for comparison with an experimental group. |
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| Positively charged sbatomic particle found in an atom's nucleus. |
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| Subatomic particle found in an atom's nucleus, has mass but no charge. |
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| Material consisting of atoms all with the same atomic number. |
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| What is the difference between molecules, compunds, mixtures |
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| Interaction between ions held together by attraction of opposite charges. |
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| Sharing of one or more electrons between atoms. |
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| An intermolecular interaction between a covalently bonded hydrogen atom and a different atom bearing a negative charge. ( e.g. ocygen, florine, nitrogen) |
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| Nucleic acids DNA RNA What do they look like? |
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Single-stranded or double-stranded molecule composed of nucleotides joined at phosphate groups. DNA - Deoxyribonucleic acid. Carries the primary hereditary information for all living organisms and many virus. RNA - Ribonuclic acid. Any of a class of single-stranded nucleic acids with roles in transcription, translation and catalysis. |
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| A measure of the H+ concentration (acidity) of blodd, water and other solutions. pH 7 is neutral. |
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| Nonpolar hydrocarbon; gats, oils, waxes, phospholipids, and sterols are lipids. |
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| Saturated/unsaturated fats |
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| What is the importance of Phoshpolipids? |
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| Lipid with a phosphate group. Major constituen of biological membranes. |
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| What is the function of protiens? |
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| Protien is an organic compound consistion of one or more polypeptide chains folded and twisted into a three-dimensional shape. |
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| What causes protiens to become denatured? |
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| Give an example of a Nucleotide. |
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| Small organic compound with a five-carbon sugar, a nitrogen-containing base, and a phosphate group. |
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