BIOLOGY 12TH ED (LL) W/ CONNECT
12th Edition
ISBN: 9781264898091
Author: Raven
Publisher: MCG
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Chapter 31, Problem 2A
Summary Introduction
Introduction: The ribosome is a major bacterial target for antibiotics. The drugs inhibit the function of ribosomes either by blocking the peptide bond formation at the peptidyl transferase center or by interfering in messenger RNA translation. These effects are the consequences of drugs binding to the subunits of a ribosome.
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Students have asked these similar questions
A prokaryotic gene was transcribed then translated. During the process,
antibiotics X was added, and the products of translation were only f-met. What
steps in translation was inhibited by antibiotic X?
A. Transpeptidation or the formation of peptide bonds
B. Binding of amino-acyl t-RNA to the 30S subunit of the ribosome
C. Formation of the functional ribosome
D. Translocation or the movement of empty t-RNA to the E site.
E. Hydrolysis of GTP
An experimental drug therapy to treat patients with antibiotic-resistant bacteria involves introduction of a highly specific bacteriophage to the infected patient's bloodstream. Which of the following bacteriophage types would be the LEAST useful for this therapy?
a. a lytic bacteriophage
b. An enveloped virus
c. An RNA virus
d. a lysogenic bacteriophage
What is the purpose of a Poly-A tail being added to mRNA?
a.
To attach to viral sequences
b.
To weigh down mRNA
c.
To terminate translation
d.
To change the chemical structure
e.
Unknown
Chapter 31 Solutions
BIOLOGY 12TH ED (LL) W/ CONNECT
Ch. 31.1 - Prob. 1LOCh. 31.1 - Prob. 2LOCh. 31.2 - Prob. 1LOCh. 31.2 - Compare cell division in fungi and higher...Ch. 31.2 - Prob. 3LOCh. 31.2 - Prob. 4LOCh. 31.3 - Prob. 1LOCh. 31.3 - Prob. 2LOCh. 31.3 - Compare and contrast arbuscular mycorrhizae and...Ch. 31.4 - Prob. 1LO
Ch. 31.4 - Prob. 2LOCh. 31.5 - Prob. 1LOCh. 31.5 - Prob. 2LOCh. 31.5 - Prob. 3LOCh. 31.6 - Explain which cells in the life cycle of an...Ch. 31.6 - Prob. 2LOCh. 31.6 - Prob. 3LOCh. 31.7 - Describe the ecological importance of the...Ch. 31.7 - Prob. 2LOCh. 31.8 - Prob. 1LOCh. 31.8 - Prob. 2LOCh. 31.8 - Prob. 3LOCh. 31.9 - Prob. 1LOCh. 31.9 - Prob. 2LOCh. 31.9 - Prob. 3LOCh. 31.10 - Prob. 1LOCh. 31 - Data analysis Comparative analyses of fossil and...Ch. 31 - A fungal cell that contains two genetically...Ch. 31 - Prob. 2UCh. 31 - Prob. 3UCh. 31 - Prob. 4UCh. 31 - Prob. 5UCh. 31 - If two genetically different, haploid (n) hyphae...Ch. 31 - Prob. 7UCh. 31 - Prob. 1ACh. 31 - Prob. 2ACh. 31 - Prob. 3ACh. 31 - Prob. 4ACh. 31 - Prob. 5ACh. 31 - Prob. 6ACh. 31 - Prob. 1SCh. 31 - Prob. 2SCh. 31 - Prob. 3SCh. 31 - Prob. 4S
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- Which of the following best describes the mechanism of action of the antibiotic streptomycin? A. it disrupts protein synthesis in resistant bacteria. B. Streptomycin inhibits cell wall synthesis in all bacterial species. C. Streptomycin creates mutations in bacteria which cause them to become resistant. D. It disrupts protein synthesis in nonresistant bacteria.arrow_forwardRefer to the figure to answer these questions:a. Add labels for mRNA (including the 5′ and 3′ ends) and tRNA. Inaddition, draw in the RNA polymerase enzyme and the ribosomes,including arrows indicating the direction of movement for each.b. What are the next three amino acids to be added to polypeptide b?c. Fill in the nucleotides in the mRNA complementary to thetemplate DNA strand.d. What is the sequence of the DNA complementary to the templatestrand (as much as can be determined from the figure)?e. Does this figure show the entire polypeptide that this geneencodes? How can you tell?f. What might happen to polypeptide b after its release from theribosome?g. Does this figure depict a prokaryotic or a eukaryotic cell? How canyou tell?arrow_forwardTargeting topoisomerase or DNA gyrase with an inhibitory antibiotic would inhibit which of the following processes in the bacterial cell? A.Peptidoglycan synthesis B.Plasma membrane synthesis C.Translation D.DNA replicationarrow_forward
- Plasmids are circular extrachromosomal DNA in bacteria that play a role in: d. degradation of viruses a. growth of bacteria b. pathogenicity and antibiotic resistance c. production of antibodiesarrow_forwardTetracyclines are a class of prokaryotic antibiotic that ?? A. Consist of lactone rings and target the 50s ribosomal subunit to prevent protein synthesis B. Consist of a napthacene ring and target the 30s ribosomal subunit to prevent protein synthesis C. Consist of aminoglycosides and target folic acid formation D. Consist of a B-lactam ring and prevent transpeptidation during cell wall formationarrow_forwardChaperones are: please explain the answer a.proteins that promote proper amino acid incorporation b.proteases that degrade improperly folded proteins c.proteins that promote proper polypeptide folding d.proteases that degrade improperly coded polypeptide chains e,proteins that promote rRNA stabilityarrow_forward
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