Conformation(s) that has (have) both a favorable hydrogen bonding pattern and φ and ψ values that fall within the allowed ramachandran conformational regions is (are) _.

a) α helix
b) collagen helix
c) β sheet
d) all of the above
e) none of the above

 A) α helix

                C) β sheet

Explanation:

it is used to visualise  the dihedral angles of amino acid residues in protein structure.

The R. plot  can be used to determine the secondary structure of proteins.it has 4 quadrant . in Quadrant l is the location of  left handed helices.Quadrants ll is  the location of beta strands , while right –handed alpha helices  occupied quadrant lll.

oxidation

explanation:

answer

materials water oxygen those are the things i can think of in this moment.