Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 27, Problem 7TY
Summary Introduction
Introduction: Bacterial cells have developed various types of structures that helped them to survive under unfavorable conditions. These structures allow them to withstand extreme environmental conditions also.
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A bacterium has the following characteristics:∙ It adheres to the human intestinal lining using a feature that protects it from phagocytes, bacteriophages, and dehydration∙ It can survive being boiled∙ It contains no plasmids and relatively little peptidoglycanWhich of the following characteristics allows this bacterium to adhere to the intestinal lining?
Group of answer choices
A. fimbriae
B. pili
C. an endospore
D. a flagellum
Bacterial endospores usually function in a. reproduction. b. survival.c. protein synthesis d. storage
How do Gram-negative bacteria differ from Gram-positivebacteria?a. They are not pathogenic.b. Their peptidoglycan cell wall is thinner.c. Gram-negative bacteria cannot be Gram stained.d. They possess a single plasma membrane.e. Gram-negative bacteria do not photosynthesize.
Chapter 27 Solutions
Biology
Ch. 27.2 - Core Skill: Connections Look ahead to Section...Ch. 27.2 - Prob. 2CSCh. 27.2 - Structure and Movement Concept Check: Does the...Ch. 27.2 - Prob. 3CSCh. 27.3 - Prob. 1CCCh. 27.5 - Prob. 1EQCh. 27.5 - Prob. 2EQCh. 27 - Which of the following features is common to...Ch. 27 - The bacterial phylum whose members typically...Ch. 27 - Gram-staining is a procedure that microbiologists...
Ch. 27 - Place the following steps in the correct order,...Ch. 27 - What ecological role do cyanobacteria play? a....Ch. 27 - Prob. 6TYCh. 27 - Prob. 7TYCh. 27 - Prob. 8TYCh. 27 - Prob. 9TYCh. 27 - Prob. 10TYCh. 27 - Prob. 1CQCh. 27 - Prob. 2CQCh. 27 - Prob. 3CQCh. 27 - Prob. 1COQCh. 27 - Prob. 2COQ
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- Which of the following is present in both gram-positive and gramnegativecell walls?a. an outer membrane. c. teichoic acidb. peptidoglycan d.lipopolysaccharidesarrow_forwardWhich of the following is present in both gram-positive and gramnegativecell walls?a. an outer membrane c. teichoic acidb. peptidoglycan d. lipopolysaccharidesarrow_forwardWhat is/are the usual habitat(s) of endospore-forming bacteria that are agents of disease? a. the intestine of animals c. water b. dust and soil d. foodsarrow_forward
- Which of the following bacteria would have the above cell boundary structure? A. Mycobacterium B.Clostridium C. Mycoplasma D. Borreliaarrow_forwardA bacterium has the following characteristics: I. It adheres to the human intestinal lining using a feature that protects it from phagocytes , bacteriophages, and dehydration. II. It can survive being boiled. III. It contains no plasmids and relatively little peptidoglycan. Which of the following characteristics allows this bacteria to survive in a human who is taking penicillin pills? A. gram-negative cell wall B. peptidoglycan in the cell wall C. lipopolysaccharides in the cytoplasm D. long polypeptides in the cell wallarrow_forwardwas used by Joseph Lister to clean wounds and surgical instruments: A.Antibiotics b.Chlorine water Carbonic acid dAntitoxins e. Carbolic acid Which one of the following does not apply to the bacterial glycocalyx? It is not responsible for virulency b .It allows the organism to resist drying C. It may allow an organism to resist phagocytosis d.It is composed of carbohydrates E. It is enclosed by the cell wallarrow_forward
- Which of the following is NOT a characteristic for bacteria in general? a. Plasma membrane has no saccharide units b. Sterols is one of its major outer membrane component c. Genome present in the nucleiod region of the cytosol d. Granules are mostly polysaccharide in naturearrow_forwardWhich of the following is present in both gram-positive and gram-negative cell walls?a. an outer membrane b. peptidoglycanc. teichoic acidd. lipopolysaccharidesarrow_forwardWhat is/are the usual habitat(s) of endospore-forming bacteria thatare agents of disease?a. intestines of animals b. soil c. water d. foodsarrow_forward
- Which of the following is present in certain Gram positive bacteria and functions in resistance? O a. Pili O b. Spores Oc. Cytoplasm O d. Cell wallarrow_forwardThe following are critical factors for bacteria to survive EXCEPT? A. Appropriate temperature B. Humidiity as the water source C. Oxygen content D. Salty surface as the ions sourcearrow_forwardWhich of the following is not consistent with an endospore? a. It is not a means of asexual reproduction b. Considered as a virulence factor thereby increasing the bacteria's survival c. This structure makes the bacteria withstand harsh conditions in the environment d. It is presence increases bacterial susceptibility to disinfectants and radiationarrow_forward
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Bacterial Structure and Functions; Author: Osmosis;https://www.youtube.com/watch?v=b15Hy3jCPDs;License: Standard youtube license