All of the following cause denaturation of proteins except:

All of the following cause denaturation of proteins except:
 a. bases.
 b. heat.
 c. alcohol.
 d. light.
 e. salts of heavy metals.

Q. 2

The sequences of amino acids that make up a protein molecule are specified by:
 a. the diet.
  b. age.
 c. gender.
 d. genes.
 e. sex.

Q. 3

How many amino acids are considered to be essential amino acids?
 a. 5
 b. 20
  c. 7
 d. 13
  e. 9

Q. 4

Which of the following is a protein catalyst, which facilitates chemical reactions?
 a. amino acid
  b. enzyme
 c. lipoprotein
  d. hormone
 e. antibody

Q. 5

A(n) ____ bond is formed between the amine group end of one amino acid and the acid group end of the next amino acid in a protein.
 a. peptide
 b. sulfur
 c. amino acid
  d. carbon
 e. denatured

Q. 6

The body normally makes tyrosine from the essential amino acid:
 a. leucine.
 b. lysine.
 c. isoleucine.
 d. valine.
 e. phenylalanine.

Q. 7

Which of the following accounts for the differences among the various amino acids?
 a. the presence or absence of nitrogen
  b. the amine group
 c. the side chain
 d. the type of bonds
 e. the acid group

Q. 8

Which of the following is found in protein but not in carbohydrate or fat?
 a. calories
 b. carbon
 c. hydrogen
  d. oxygen
 e. nitrogen