PCB 3023 (questions with verified
answers) already passed
Where does transcription occur in a eukaryotic cell?
a) cell membrane
b) nucleus
c) cytoplasm
d) Golgi
e) ER - correct answer b) nucleus
Which of the following IS NOT found in the nucleus?
a) DNA
b) RNA
c) proteins
d) nucleotides
e) All of these substances are found in the nucleus. - correct answer e) All of these substances are
found in the nucleus.
Which of the following does NOT pertain to the cytoskeleton?
a) Contains actin filaments, microtubules and intermediate filaments
b) Provides structure to the cytoplasm of the cell.
c) It gives shape and strength to the cell
d) It is involved in cell movement.
e) It helps generate ATP in the cell. - correct answer e) It helps generate ATP in the cell.
Which of the following is NOT true about prokaryotes?
a) One type is bacteria.
b) One type is Archaea.
c) Some can do photosynthesis.
d) One type is yeast.
,e) Some can use oxygen to oxidize food molecules. - correct answer d) One type is yeast.
Which of the following model organisms is a multicellular worm used to study the process of
development?a)Saccharomyces cerevisiae
b)Caenorhabditis elegans
c) Mus musculus
d) Arabidopsis thaliana
e) Xenopus laevis - correct answer b)Caenorhabditis elegans
The major function of the rough endoplasmic reticulum is _____.
a) generation of energy
b) synthesis of cytosolic proteins
c) cell motility
d) generation of phospholipids
e) synthesis of secreted and membrane-associated proteins - correct answer e) synthesis of secreted
and membrane-associated proteins
The four groups that amino acids are classified into are _____.
a) basic, acidic, uncharged polar, and nonpolar
b) hydrophobic, hydrophilic, uncharged polar, and nonpolar
c) basic, acidic, uncharged, and charged
d) uncharged, charged, uncharged polar, and charged polar
e) amino group, carboxyl group, hydrogen, and R group - correct answer a) basic, acidic, uncharged
polar, and nonpolar
Which of the following effects would the amino acid proline have within a polypeptide chain? (Hint:
Think about what must happen to a polypeptide in order to make it a functional protein.)
a) it would reduce the flexibility of the polypeptide backbone
b) It would introduce positive charge to the polypeptide.
c) It would introduce negative charge to the polypeptide.
d) It would increase flexibility of the polypeptide backbone
e) It would improve the solubility of the polypeptide. - correct answer a) it would reduce the
flexibility of the polypeptide backbone
, Which of the following short protein chains (or PEPTIDES) would be considered the MOST
HYDROPHOBIC?
a) leucine-arginine-histidine-lysine-glycine-serine
b) glutamic acid-glycine-aspartic acid-leucine-glutamic acid-aspartic acid
c) leucine-valine-proline-alanine-methionine-isoleucine
d) cysteine-methionine-cysteine-valine-glutamic acid-tyrosine
e) All of these answers are roughly equally hydrophobic. - correct answer c) leucine-valine-proline-
alanine-methionine-isoleucine
Which of the following amino acids would likely be found on the SURFACE of a folded protein?
a) arginine
b) proline
c) glycine
d) leucine
e) alanine - correct answer a) arginine
Which of the following amino acids contain a sulfur atom?
a) tryptophan
b) cysteine
c) methionine
d) arginine
e) More than one of these answers is correct. - correct answer e) More than one of these answers is
correct.
What would be the NET charge of the following peptide in at cellular pH (pH = 7.4)?LYS-LYS-ARG-GLU-
ARG-LYS-GLY-VAL
a) +5
b) +4
c) +2
d) 0
e) −2
answers) already passed
Where does transcription occur in a eukaryotic cell?
a) cell membrane
b) nucleus
c) cytoplasm
d) Golgi
e) ER - correct answer b) nucleus
Which of the following IS NOT found in the nucleus?
a) DNA
b) RNA
c) proteins
d) nucleotides
e) All of these substances are found in the nucleus. - correct answer e) All of these substances are
found in the nucleus.
Which of the following does NOT pertain to the cytoskeleton?
a) Contains actin filaments, microtubules and intermediate filaments
b) Provides structure to the cytoplasm of the cell.
c) It gives shape and strength to the cell
d) It is involved in cell movement.
e) It helps generate ATP in the cell. - correct answer e) It helps generate ATP in the cell.
Which of the following is NOT true about prokaryotes?
a) One type is bacteria.
b) One type is Archaea.
c) Some can do photosynthesis.
d) One type is yeast.
,e) Some can use oxygen to oxidize food molecules. - correct answer d) One type is yeast.
Which of the following model organisms is a multicellular worm used to study the process of
development?a)Saccharomyces cerevisiae
b)Caenorhabditis elegans
c) Mus musculus
d) Arabidopsis thaliana
e) Xenopus laevis - correct answer b)Caenorhabditis elegans
The major function of the rough endoplasmic reticulum is _____.
a) generation of energy
b) synthesis of cytosolic proteins
c) cell motility
d) generation of phospholipids
e) synthesis of secreted and membrane-associated proteins - correct answer e) synthesis of secreted
and membrane-associated proteins
The four groups that amino acids are classified into are _____.
a) basic, acidic, uncharged polar, and nonpolar
b) hydrophobic, hydrophilic, uncharged polar, and nonpolar
c) basic, acidic, uncharged, and charged
d) uncharged, charged, uncharged polar, and charged polar
e) amino group, carboxyl group, hydrogen, and R group - correct answer a) basic, acidic, uncharged
polar, and nonpolar
Which of the following effects would the amino acid proline have within a polypeptide chain? (Hint:
Think about what must happen to a polypeptide in order to make it a functional protein.)
a) it would reduce the flexibility of the polypeptide backbone
b) It would introduce positive charge to the polypeptide.
c) It would introduce negative charge to the polypeptide.
d) It would increase flexibility of the polypeptide backbone
e) It would improve the solubility of the polypeptide. - correct answer a) it would reduce the
flexibility of the polypeptide backbone
, Which of the following short protein chains (or PEPTIDES) would be considered the MOST
HYDROPHOBIC?
a) leucine-arginine-histidine-lysine-glycine-serine
b) glutamic acid-glycine-aspartic acid-leucine-glutamic acid-aspartic acid
c) leucine-valine-proline-alanine-methionine-isoleucine
d) cysteine-methionine-cysteine-valine-glutamic acid-tyrosine
e) All of these answers are roughly equally hydrophobic. - correct answer c) leucine-valine-proline-
alanine-methionine-isoleucine
Which of the following amino acids would likely be found on the SURFACE of a folded protein?
a) arginine
b) proline
c) glycine
d) leucine
e) alanine - correct answer a) arginine
Which of the following amino acids contain a sulfur atom?
a) tryptophan
b) cysteine
c) methionine
d) arginine
e) More than one of these answers is correct. - correct answer e) More than one of these answers is
correct.
What would be the NET charge of the following peptide in at cellular pH (pH = 7.4)?LYS-LYS-ARG-GLU-
ARG-LYS-GLY-VAL
a) +5
b) +4
c) +2
d) 0
e) −2
