Alkaline substances include which of the following?
a. Gastric juice
b. Water
c. Blood
d. Lemon juice
e. Ammonia

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Alkaline substances include which of the following?
a. Gastric juice
b. Water
c. Blood
d. Lemon juice
e. Ammonia
Glucose is to starch as:
a. A steroid is to a lipid
b. A nucleotide is to a nucleic acid
c. An amino acid is to a protein
d. A polypeptide is to an amino acid
What lipid type is stored in fat deposits beneath the skin?
a. Triglyceride
b. Steroid
c. Vitamin D
d. Phospholipid
e. Prostaglandin
Pick out the correct match(es) of element and number of valence electrons. Draw a planetary model of each atom to help you choose the best answer.
a. Oxygen—6
b. Chlorine—8
c. Phosphorus—5
d. Nitrogen—3
e. Carbon—4
Which of the following is (are) true concerning the atomic nucleus?
a. It contains the mass of the atom.
b. The negatively charged subatomic particles are here.
c. Subatomic particles can be ejected.
d. It contains subatomic particles that determine atomic number.
e. It contains subatomic particles that interact with other atoms.