Which of the given is composed of a 121 ratio of carbon to

Reference no: EM13452272

1. Which of the following is composed of a 1:2:1 ratio of carbon to hydrogen to oxygen?

a. carbohydrate
b. protein
c. lipid
d. nucleic acid
e. steroid

2. Glucose and ribose

a. have the same number of carbon atoms.
b. have the same structural formulas.
c. are the two components of sucrose.
d. are monosaccharides.
e. are molecules whose atoms are arranged the same way.

3. Which element is NOT characteristic of the primary structure of proteins?

a. sulfur
b. carbon
c. phosphorus
d. oxygen
e. nitrogen

4. Proteins may function as

a. structural units.
b. hormones.
c. storage molecules.
d. transport molecules.
e. all of these

5. What kind of bond exists between two amino acids in a protein?

a. peptide
b. ionic
c. hydrogen
d. amino
e. hemiacetyl

Reference no: EM13452272

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