Which of the following bonds connect amino acids in the primary structure of a protein? :

a)hydrogen bonds
b)phosphodiester bonds
c)peptide bonds
d)alpha 1,4-glycosidic bonds
e)ionic bonds

C.Peptide bonds

Explanation:

The amino acids in the protein structure are linked by peptide bonds.

These bonds join the alpha carboxylic group of one amino acid to the alpha amino group of another amino acid. This forms a chain called the amino sequence

c. because step up transformer steps up the input voltage i.e increases the input voltage  

the number of turns are greater on the secondary side of step up transformer  

transformer does not handle dc current