I need help with questions 1 part a & b. And 2, part a & b. la. Hydrogen bonding
ID: 570972 • Letter: I
Question
I need help with questions 1 part a & b. And 2, part a & b.
la. Hydrogen bonding between which functional groups stabilizes protein secondary structure arrangements? Clearly explain 1b. What is the difference between the types of hydrogen bonding that occur in secondary and tertiary protein structure? Clearly explain. 2a. In the following reaction, fumarate undergoes (select one) a a reduction. b. an oxidization. succinate dehydrogenase 0 0 0 CH-CH-C-o2 O-C-CH2-CH2-C-0 + fumarate succinate As fumarate is reacting, the co-enzyme is under-going (select one) a. a reduction. 2b. b, an oxidizationExplanation / Answer
1a. The structural stability of protien secondary stucture is a result of hydrogen bonding between amide proton
(N-H)and carbonyl oxygen(c=o)
amide proton: a hydrogen atom which is bonded to N-H bond( peptide bond)
carbonyl oxygen or acyl oxygen: the oxygen atom attached to the acrbon atom in the amide plane.
2b. hydrogen bonds in tertiary structure is formed between the the polar hydrogen of one amino acid and a lone pair of electrons on other. Where as in seconadry structure hydrogen bond formed between every N-H group and C=O group which is next turn of helix.
2A. ans: A.fummarateundergoes reduction takes place from the addition of hydrogen and double bond is aslo removed by the removal of electrons. thereby reduction.
2B: ans:B, as fumarate undergose reduction the other enzyme gets oxidized.