Organic Molecules What do you think are the most common elements in the human body? (Hint: look at p. 113 in your pride book to help)

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Presentation transcript:

Organic Molecules What do you think are the most common elements in the human body? (Hint: look at p. 113 in your pride book to help)

Role of Carbon 4 valence electrons free Can covalently bond with up to 4 other atoms

Polymer A large molecule formed when many smaller ones (monomers) bond together

Label each tab and put your name on it.

Number off 1-4  1’s carbohydrates  2’s lipids  3’s proteins  4’s nucleic acids For your molecule find:  3 Functions  1 Example

Carbohydrates Functions main source of energy Structural support in plants and fungi Ex:

Lipids Store energy (fats & oils) Important part of cell membranes (phospholipid/cholestrol) Waterproof coverings (waxes)

Proteins Control rate of reactions and cell processes as enzymes Found in bones and muscles Help to fight disease (antibodies)

Nucleic Acids Stores (DNA) and transmits (RNA) genetic information to build proteins

Lipids

Nucleotides

Carbohydrates Functions main source of energy Structural support in plants and fungi

Proteins

Enzymes  biological catalysts  Speeds up reactions  Without them reactions would occur too slow for life  Lower the activation energy

Enzymes Enzymes provide a site where substrates can be brought together = Active Site  The fit is like a lock and key

Enzyme Regulation Work best at a particular pH  Digestion enzyme Affected by changes in temperature  Denaturization Concentration

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