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1. Where does transcription occur in a eukaryotic cell?
a) cell membrane
b) nucleus
c) cytoplasm
d) golgi
e) ER: b) nucleus
2. 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.: e) All of these substances are found in
the nucleus.
3. 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.: e) It helps generate ATP in the cell.
4. 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.: d) One type is yeast.
5. 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: b)Caenorhabditis elegans
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6. 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: e) synthesis of secreted
and membrane-associated proteins
7. 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: a) basic, acidic, uncharged polar,
and nonpolar
8. 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.: a) it would reduce the flexibility of the
polypeptide backbone
9. Which of the following short protein chains (or PEPTIDES) would be consid-
ered 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.: c) leucine-valine-proline-ala-
nine-methionine-isoleucine
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10. 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: a) arginine
11. 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.: e) More than one of these answers is correct.
12. 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
f) -4
g) -5: b) +4
13. f a protein contained the sequence: lysine-arginine-histidine-glycine-lysine,
which of the amino acid chains below would it most likely form ionic bonds
with?
a) glutamic acid-glycine-aspartic acid-leucine-glutamic acid-aspartic acid
b) lysine-arginine-histidine-glycine-lysine
c) proline-leucine-valine-proline-alanine-methionine
d) cysteine-methionine-cysteine-valine-lysine
e) All of these answers.: a) glutamic acid-glycine-aspartic acid-leucine-glutamic acid-aspartic acid
14. According to lecture, the macromolecules found in a cell are all _____.
a) polymers