BIOL 1107K Chapter Notes - Chapter 3: Alpha Helix, Structural Isomer, Chemical Formula
Document Summary
Chapter 3: polymers are made up of monomers, proteins. Not te(cid:272)h(cid:374)i(cid:272)ally a poly(cid:373)er (cid:271)e(cid:272)ause they are(cid:374)"t (cid:271)uilt (cid:449)ith (cid:272)o(cid:448)ale(cid:374)t (cid:271)o(cid:374)ds. Macromolecules: polymers with molecular weights > 1,000. Interact with each other, depending on functional groups: specific chemical properties (polar, acidic, etc. ) Isomers: molecules with the same chemical formula, but with atoms arranged differently, structural isomer: differ in how atoms are joined together, optical isomer: building something in the same orientation, but the mirrored version (reacts differently) Biochemical unity: the four macromolecules are present in the same proportions in all living organisms, can get them by eating other organisms, eating things similar to us is beneficial, want 75% water and 25% macromolecules. Water is a byproduct: hydrolysis (catabolic, breaking down, need to add water. Speeds up or gets a reaction started: defensive proteins. Defends against foreign substances: hormonal/regulatory proteins. Resistance to other reactions: transparent proteins, genetic regulatory proteins.
