Ch 3 Flashcards
Metabolism
chemical reaction process that provides energy for vital function creation of new organic material in the body
Dehydration Synthesis
water is removed to bond 2 molecules
Hydrolysis
water is added to break apart 2 molecules
What happens to the food you eat?
Digestive system breaks it down and converts it to energy
Starts in the mouth (saliva breaks down)
Carbohydrate Functions
- short term energy
- makes cellulose (plant cell wall)
- glycogen (stores energy)
- chitin (bug exterior)
Lipid Functions
- long term energy storage
- insulation
- animal cell membrane
- cell to cell communication
Protein Functions
- cellular functions/jobs (muscle movement)
- attacks foreign particles
- energy provided only when necessary
- catalyzes anabolic or catabolic reactions
- structure of hair and nails
How does a protein’s structure determine its function?
the specific arrangement of amino acids in a protein chain folds into a unique three-dimensional shape, which dictates which molecules it can interact with and what chemical reactions it can catalyze
Protein Primary Structure
chain of amino acids
Protein Secondary
folding of the polypeptide chains
(alpha helix or beta pleated helix)
Protein Tertiary
interaction of the secondary folds
Quaternary
combination fo teriarties (looks a 3D mess)
Nucleic Acid Functions
- gives instructions for building proteins
- stores and conveys genetic information for offspring
