Exam 2: The Cell: Structure and Function

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A) DNA is a polymer of nucleotides.
B) A protein is a polymer of amino acids.
C) ATP is a polymer of phosphates.
D) Starch is a polymer of glucose.
E) Glycogen is a polymer of glucose.

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A) adenine
B) ribose
C) uracil
D) both adenine and thymine
E) both thymine and deoxyribose

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Tight junctions are composed of integral...

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A) dynein
B) connexons
C) tubulin
D) cadherins
E) occludins

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A) interphase, prophase, prometaphase, metaphase, telophase
B) prophase, interphase, metaphase, anaphase, telophase
C) prophase, prometaphase, metaphase, anaphase, telophase
D) prophase, prometaphase, anaphase, metaphase, telophase
E) prophase, metaphase, anaphase, protelophase, telophase

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A) primary
B) secondary
C) tertiary
D) quaternary
E) quinary

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A) RNA is synthesized from DNA in the cytoplasm.
B) protein is synthesized from RNA in the cytoplasm.
C) RNA is synthesized from DNA in the nucleus.
D) protein is synthesized from RNA in the nucleus.
E) DNA is synthesized from DNA in the nucleus.

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A) disulfide bridges
B) covalent bonds
C) van der Waals forces
D) ionic bonds
E) hydrogen bonds

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A) stipplings
B) Lewy bodies
C) Heinz bodies
D) inclusions
E) granules

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A) binding of tRNA to the initiator codon
B) binding of helicase to the DNA
C) binding of DNA polymerase to the leader sequence
D) binding of RNA polymerase to the promoter sequence
E) binding of ubiquitin to the DNA

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A) They align the first tRNA with the A site on a ribosome.
B) They trigger binding of the small ribosomal subunit to AUG.
C) They form a complex with small ribosomal subunits.
D) They bind to the cap group at the 5' end.
E) They form a complex with charged tRNA.

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A) cadherins
B) occludins
C) dynein
D) connexons
E) tubulin

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A) the triplet of nucleotides found in a gene's sequence.
B) the genetic code.
C) the portion of mRNA that is retained after processing.
D) DNA language coding for a particular amino acid.
E) mRNA language coding for a particular amino acid.

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A) intron strand.
B) exon strand.
C) promoter sequence.
D) template strand.
E) ribophorin.

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A) They are important forces for tertiary structure of proteins.
B) They can form between neighboring molecules.
C) They are responsible for many of the unique properties of water.
D) They can occur within a single molecule.
E) They are strong attractive forces between hydrogen atoms and negatively charged atoms.

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A) microfilament
B) integral protein
C) microtubule
D) intermediate filament
E) globular protein

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A) amino : polar
B) hydroxyl : polar chemical groups makes carbohydrates .
C) carboxyl : polar and acidic
D) amino : acidic
E) hydroxyl : nonpolar

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