A) Proteins
B) Nucleic acids
C) Lipids
D) Chlorophylls
Answer: D
Bloom's Level: 1-2: Remembering/Understanding
Learning Outcome: 1.2
12) An amphipathic molecule provides the foundation for biological membranes because they have both ________ and ________ functional groups.
A) Exergonic, Endergonic
B) Hydrophobic, Hydrophilic
C) Enthalpic, Entropic
D) Organic, Inorganic
Answer: B
Bloom's Level: 1-2: Remembering/Understanding
Learning Outcome: 1.2
13) Genomics is concerned with the entire ________.
A) Cell
B) Lipid network
C) Genome
D) Proteome
Answer: C
Bloom's Level: 1-2: Remembering/Understanding
Learning Outcome: 1.5
14) Wohler showed that a chemical found only in living organisms can be made from inorganic substances when he synthesized ________.
A) Ammonium cyanate
B) Amino acids
C) Urea
D) Uric acid
Answer: C
Bloom's Level: 1-2: Remembering/Understanding
Learning Outcome: 1.1
15) The lock-and-key theory described the action of ________.
A) Enzymes as keys that fit different chemicals
B) Substrates as keys that fit different enzymes
C) Enzymes as locks that fit other enzymes
D) Substrates as locks that fit different enzymes
Answer: B
Bloom's Level: 1-2: Remembering/Understanding
Learning Outcome: 1.2
16) According to Crick's Central Dogma of molecular Biology, there can be NO transfer of information from ________.
A) DNA to RNA
B) RNA to RNA
C) RNA to protein
D) Protein to RNA
Answer: D
Bloom's Level: 1-2: Remembering/Understanding
Learning Outcome: 1.2
17) Which linkage(s) occur extensively in nucleotides?
A) Amide
B) Ester
C) Phosphate ester
D) Ether
Answer: C
Bloom's Level: 1-2: Remembering/Understanding
Learning Outcome: 1.2
18) Which functional group is shown?
A) Primary amine
B) Acyl
C) Amide
D) Anhydride
Answer: C
Bloom's Level: 1-2: Remembering/Understanding
Learning Outcome: 1.2
19) Proteins in biological membranes ________.
A) May be porous
B) May not be attached to the membrane surface
C) May not span the membrane
D) May be integrally-bound only
Answer: D
Bloom's Level: 1-2: Remembering/Understanding
Learning Outcome: 1.2
20) Sugars such as glucose are monomers of polysaccharides that are linked together when covalent bonds form between one ________ groups of one sugar to the same group on another sugar.
A) Ester
B) Carboxyl
C) Amino
D) Hydroxyl
Answer: D