EBK BROCK BIOLOGY OF MICROORGANISMS
15th Edition
ISBN: 8220103633352
Author: Stahl
Publisher: PEARSON
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Chapter 16, Problem 2AQ
Microorganisms can have a variety of different relationships with oxygen. Describe the terms used to characterize a cell’s response to oxygen, and give an example from this chapter of an organism that can be described by each of these terms.
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Which of the following proteins or protein complexes is directly required for the targeting of mitochondrial inner membrane multipass proteins, such as metabolite transporters, whose
signal sequence is normally not cleaved after import?
OA. TIM22
OB. TIM23
C. OXA
OD. Mia40
OE SAM
QUESTION 9
An animal cell has been wounded and has a small rupture in its plasma membrane. Which of the following is more likely to happen next?
OA. The cell rapidly cleaves by cytokinesis.
OB. The rate of receptor-mediati endocytosis is increased.
OC. The rate of exocytosis is increased.
OD. The rate of pinocytosis is increased.
For the a subunit of a trimeric G protein,
A. a G-protein-coupled receptor GPCR) acts as a guanine nucleotide exchange factor (GEF), whereas a regulator of G protein signaling (RGS) can act as a GTPase-activating protein
(GAP).
B. a GPCR acts as a GAP, whereas an RGS can act as a GEF.
C. both a GPCR and an RGS can act as a GEF.
O D. both a GPCR and an RGS can act as a GAP
OE. None of the above.
Chapter 16 Solutions
EBK BROCK BIOLOGY OF MICROORGANISMS
Ch. 16.1 - What are some ways in which Wolbachia species can...Ch. 16.1 - Prob. 2MQCh. 16.1 - Which genera of Alphaproteobacteria are known to...Ch. 16.2 - Prob. 1MQCh. 16.2 - Prob. 2MQCh. 16.2 - Prob. 1CRCh. 16.3 - Prob. 1MQCh. 16.3 - Prob. 2MQCh. 16.3 - What is the catalase test? What catalase reaction...Ch. 16.4 - What species of Pseudomonas is a common cause of...
Ch. 16.4 - What major characteristic could be used to...Ch. 16.4 - Prob. 1CRCh. 16.5 - What four metabolic traits are most common in...Ch. 16.5 - Why is Wolinella physiologically unusual among the...Ch. 16.5 - Prob. 1CRCh. 16.6 - Prob. 1MQCh. 16.6 - How can Streptococcus pyogenes be distinguished...Ch. 16.6 - What is the difference between homofermentative...Ch. 16.7 - Prob. 1MQCh. 16.7 - What characteristics differentiate Sarcina from...Ch. 16.7 - What characteristics of Listeria make it a...Ch. 16.8 - What is the major physiological distinction...Ch. 16.8 - What is the crystalline protein made by Bacillus...Ch. 16.8 - What is a good strategy for isolating...Ch. 16.9 - Prob. 1MQCh. 16.9 - Prob. 2MQCh. 16.9 - Prob. 1CRCh. 16.10 - What is snapping division and what organism...Ch. 16.10 - What organism is involved in the production of...Ch. 16.10 - Prob. 1CRCh. 16.11 - What is mycolic acid, and what properties does...Ch. 16.11 - Prob. 1CRCh. 16.12 - Prob. 1MQCh. 16.12 - Prob. 2MQCh. 16.12 - How are the spares of streptomycetes different...Ch. 16.13 - Prob. 1MQCh. 16.13 - What species of Bacteroidetes is most abundant in...Ch. 16.14 - Describe a method for isolating Cytophaga species...Ch. 16.14 - Prob. 2MQCh. 16.14 - Prob. 1CRCh. 16.15 - How are Chlamydia and Mycoplasma (Section 16.9)...Ch. 16.15 - Prob. 2MQCh. 16.15 - Prob. 1CRCh. 16.16 - Prob. 1MQCh. 16.16 - Prob. 2MQCh. 16.16 - What are two types of intracellular compartments...Ch. 16.17 - Prob. 1MQCh. 16.17 - Prob. 1CRCh. 16.18 - What is unique about the genome of Thermotoga and...Ch. 16.18 - Prob. 1CRCh. 16.19 - Prob. 1MQCh. 16.19 - Prob. 1CRCh. 16.20 - Describe a commercial application of Thermus...Ch. 16.20 - Describe an unusual biological feature of...Ch. 16.20 - What are some of the remarkable properties that...Ch. 16.21 - Prob. 1MQCh. 16.21 - Prob. 2MQCh. 16.21 - Prob. 3MQCh. 16.21 - Prob. 1CRCh. 16 - Enteric bacteria, lactic acid bacteria, and...Ch. 16 - Microorganisms can have a variety of different...
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- A cell expresses a transmembrane protein that is cleaved at the plasma membrane to release an extracellular fragment. The fragment binds to receptor proteins on nearby cells and activates signaling pathways resulting in altered gene expression patterns in the cells. What form of intercellular signaling does this represent? OA. Contact-dependent signaling B. Paracrine signaling OC. Synaptic signaling D. Endocrine signaling E. Autocrine signalingarrow_forwardWhich of the following drive nuclearly encoded proteins import into the mitochondrial matrix? OA. ATP hydrolysis OB. Membrane Potential OC. K+ Ions OD. A and B OE. None of the abovearrow_forwardWhich of the following statements is true regarding Cholesterol import into the cell? OA. It is transported within LDL B. Receptor mediated endocytosis is involved OC. Release of cholesterol occurs in the Lysosome D. All of the above are true statements OE. None of the above are true statementsarrow_forward
- In which of the following schematic drawings of signaling pathways does the activation of the receptor lead to gene expression? Activating and inhibitory steps are indicated with (+) and (-), respectively. OA OB ㅇㅂㅇㅂㅇㅁ (+) Gene Expression Activated Signaling proteins Transcription receptor activator Bl D Gene Expression Gene Expression ㅁㅁㅇ Gene Expression Gene Expressionarrow_forwardWhich of the following events normally activates a GTP-binding protein? OA. GTP hydrolysis by the protein OB. Activation of an upstream GTPase-activating protein OC. Activation of an upstream guanine nucleotide exchange factor OD. Phosphorylation of a bound GDP molecule by an upstream phosphorylase OE. Pi release after GTP hydrolysisarrow_forwardProteins that are synthesized on the Rough ER are imported into the ER lumen after their signal sequence is recognized. Which of the following is responsible for the signal recognition? OA. Signal Recognition Particle, OB. Signal Sequence C. Stop-transfer sequence OD. Both B and C OE. None of the abovearrow_forward
- Stroma Light 4 H 4 H I Thylakoid- membran 2 H₂O D1 D2 Min Light 2,6 ATP 2 NADP+ 2 NADPH/H+ Fp 2,6 ADP +2,6 P 8 H+ 12 H+ 4 H+ Lumen PS II Cyt bef PS I ATP-Synthase 12345 5a 5b 6arrow_forwardWhich of the following statements is TRUE regarding the signal recognition particle (SRP)? OA. SRP is made up of RNA and Proteins B. SRP binds to the signal sequence OC. SRP binds to the elongation factor binding site on the ribosome and pauses translation D. All of the above are true statements OE. None of the above are true statementsarrow_forwardWhich of the following pathways does NOT directly deliver materials to lysosomes? OA. Endocytosis B. Exocytosis OC. Phagocytosis OD. Autophagy OE. Macropinocytosisarrow_forward
- You suspect a protein to be secreted out of a cell. What experiment would you perform to follow the movement of this protein through the secretory pathway? A. Pulse - Chase Experiment OB. Signal Sequence Deletion C. Signal Sequence Mutation OD. All of the above E. None of the abovearrow_forwardA schematic drawing of the secretory and endocytic pathways is presented below. Indicate which component in the drawing (A to J) corresponds to each of the following. Your answer would be a 10-letter string composed of letters A to J only, c.g. HICDJABFGE. nuclear envelope Early endosome Late endosome ER Lysosome A ( ) cis Golgi cisterna () modial Golgi cisterna () trans Golgi cisterna [] cis Golgi network (CGN) () trans Golgi network (TGN) () Secretory Vesicle B C D E CYTOSOL F G H plasma membranearrow_forwardWhich of the following guide transport vesicles to their target membrane? A. Rab monomeric GTPases B. Signal Sequence OC. Heat Shock Proteins OD. All of the above O E. None of the abovearrow_forward
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