proteins

Question 1

proteins functions

Answer 1

enzymes (catalizers)
transport
structural
defensive
hormonal
receptor

Question 2

R groupe of protein

Answer 2

what changes between different proteins,

Question 3

peptide bonds

Answer 3

formed during translation, dehydration synthesis reactions (dygestion breaks down peptide bond, hyrolysis reaction)
Involves formation of molecule of water

Question 4

4 levels of protein structure

Answer 4

primary: amino acids sequence, each unic, shape depends on primary sequence
secondary: shape, coiled (alpha helix, flexible, stretch) or folded (beta pleated, strong)
tertiary structure: folding on itself, 3D

quaternary: not all have, 2 or more polypeptide chains

if polypeptide can accompich a function on its own, then protein, if not, then quartiary structure needed to be a protein, and alone called polypeptide

Question 5

mutation/denaturation

Answer 5

mutation: change in amino acid sequence, may or may not change primary structure because of repitition of codons

denaturation: due to cellular conditions (heat, oH, heavy metals etv) change in 2nd or 3rd structure, possibly 4th primary unchanged, cna be reversible or irreversible

change in structure causes change in function

Question 6

How many different kinds of monomers are there in
proteins?

Answer 6

20 (all types of amino acids generally)