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Chemistry for Biology (Structure of Matter (Elements (Atoms- smallest…
Chemistry for Biology
Organic molecules
all organic molecules contains carbon a part of their structure, because carbon bonds with itself and many other elements in stable covalents bonds.
types of Org. molecules
Proteins :
Contains C,H,O, and N
Structural part of animals, enzymes, fast acting hormones, immune system
Nucleic acids
Contains C, H, O, N and P
Genetic info storage and use- DNA, RNA
Lipids
Contain C, H, O, no set ratio
Long term energy storage, steroid hormones, cell membrane, insulation
Carbohydrates
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Contain C, H, and O 2.1 ratio H to O
Short and medium term energy storage, structural parts of plants, exoskeletons for anthropoids.
Monomers vs. Polymers monomers are smaller repeating molecular units that get joined to make complex molecules (polymers)
Lipid monomers glycerol, cholesterol, fatty acids
Proteins, monomers, amino acids
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Nucleic acid monomers, nucleotide
Structure of Matter
Elements
Living organisms 99% composed of C, H, O, N
Pure substances that can't be broken down into simpler substances, 92 are naturally occurring
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States of Matter
Liquid- Particles have enough kinetic energy that they move past each other but can't escape each other
Gas- particles have enough kinetic energy, that they move past and escape each other
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