MICROBIOLOGY-ACCESS >CUSTOM<
13th Edition
ISBN: 9780135668825
Author: Tortora
Publisher: PEARSON
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Textbook Question
Chapter 20, Problem 7MCQ
Which of the following will not affect eukaryotic cells?
- a. inhibition of the mitotic spindle
- b. binding with sterols
- c. binding to 80S ribosomes
- d. binding to DNA
- e. All of the above will affect them.
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Students have asked these similar questions
Which of the following statements about ribosomes is correct? *
a. the number of ribosomes in a cell seldom exceeds 50
b. the active site of a ribosome contains mostly protein molecules
c. structurally, ribosomes have two rRNA- protein subinuts
d. no correct response
What is the complementary hnRNA base sequence produced from the DNA base sequence 5' C-T-A-T-A-C 3' ? *
a. 3' C-T-A-G-A-T 5'
b. 3' C-G-G-A-T-A 5'
c. 3' G-A-U-A-U-G 5'
d. 3' G-A-T-A-T-G 5'
The product of the first phase in protein synthesis is *
a. DNA molecules
b. RNA molecules
c. both RNA and DNA molecules
d. neither RNA and DNA molecules
A rare mutation can result in eukaryotic cells that causes a failure in the cell to synthesize the Signal Recognition Particle (SRP). Failure to make the SRP would impact protein synthesis by ________ .
A. Preventing transition of bound ribosomes to free ribosomes
B. Preventing binding of ribosomes to the rough ER during synthesis of proteins with a signal sequence
C. Preventing export of mRNA out of the nuclear envelope
D. Preventing binding of ribosomes to the smooth ER during synthesis of proteins with a signal sequence
Which of the following is NOT correct?
A. Normal fasting blood glucose level is 200 mg/dL
B. Translation is the process whereby MRNA is produced from a DNA template
C. Synthesis of secretory proteins, integral membrane proteins, or proteins/enzymes for the
lysosomes are made by free ribosomes
D. Chaperonins are cytoplasmic proteins that maintain protein folding and are found in smooth ER
E. All of the above
F. None of the above
Chapter 20 Solutions
MICROBIOLOGY-ACCESS >CUSTOM<
Ch. 20 - DRAW IT Show where the following antibiotics work:...Ch. 20 - List and explain five criteria used to identify an...Ch. 20 - What similar problems are encountered with...Ch. 20 - Define drug resistance. How is it produced? What...Ch. 20 - List the advantages of using two chemotherapeutic...Ch. 20 - Why does a cell die from the following...Ch. 20 - How does each of the following inhibit...Ch. 20 - The OH is missing from carbon 39 in ddI. How does...Ch. 20 - Compare the method of action of the following...Ch. 20 - NAME IT This microorganism is not susceptible to...
Ch. 20 - Which of the following pairs is mismatched? a....Ch. 20 - Prob. 2MCQCh. 20 - Prob. 3MCQCh. 20 - An antimicrobial agent should meet all of the...Ch. 20 - The most selective antimicrobial activity would be...Ch. 20 - Prob. 6MCQCh. 20 - Which of the following will not affect eukaryotic...Ch. 20 - Cell membrane damage causes death because a. the...Ch. 20 - A drug that intercalates into DNA has the...Ch. 20 - Chloramphenicol binds to the 50S portion of a...Ch. 20 - Prob. 1ACh. 20 - Why is idoxuridine effective if host cells also...Ch. 20 - Some bacteria become resistant to tetracycline...Ch. 20 - The following data were obtained from a...Ch. 20 - Prob. 5ACh. 20 - The following results were obtained from a broth...Ch. 20 - Vancomycin-resistant Enterococcus faecalis was...Ch. 20 - Prob. 2CAECh. 20 - Prob. 3CAE
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- Which of the following is true of ribosome rescue? (C & E wrong) A. The process produces a protein that is tagged for degradation. B. Proteases enter the A-site of the ribosome to degrade the C-terminus of the synthesized peptide. C. A partially translated mRNA becomes fully degraded before it can be translated further. D. No protein is produced in the process. E. Stalled ribosomes are released in the absence of a stop codon.arrow_forwardThe long distance transport of molecules on microtubules requires Select one: a. proteases b. motor proteins c. p53 d. none of the above e. ubiquitin Clear my choicearrow_forwardThe antibiotic binds reversibly to an allosteric site on the ribosome. Which of the following will be affected by this inhibitor? a. Vmax will increase b. Vmax will decrease c. Km will increase d. Km will decreasearrow_forward
- Which of the following is NOT correct? A. Normal fasting blood glucose level is 110 mg/dL B. transcription is the process whereby MRNA is produced from a DNA template C. Synthesis of secretory proteins, integral membrane proteins, or proteins/enzymes for the lysosomes are made by bound ribosomes D. Chaperonins are cytoplasmic proteins that maintain protein folding and are found in rough ER E. All of the above F. None of the abovearrow_forward26.With regard to cell signalling, which of the following do not represent exogenous signals? A. Neurotransmitters B. Invading microorganisms C. Light D. Odours E. All of the above statements are correct 27.Which of the following statements correctly describe distinct aspects of microtubule dynamic instability? A. αβ-tubulin dimers must contain GTP bound to both subunits to be added to a microtubule B. Terminal β-subunits have essentially negligible rates of GTP hydrolysis C. The addition of a new αβ-tubulin dimer to a growing microtubule results in GTP hydrolysis within the formerly terminal β-tubulin subunit D. The end of each microtubule has a cap of GTP-bound β-subunits, with the central region of the microtubule primarily consisting of GDP-bound β-subunits E. All of the above statements are true 28.All of the following statements regarding myosin are true, with the exception of: A. Myosin is a multimeric protein made up of heavy and light chains B.…arrow_forwardSynthesis of new molecules of deoxyribonucleic acid is the process of A. replication B. translation C. transcription D. ossification E. cytokinesisarrow_forward
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