Biology: The Unity and Diversity of Life (MindTap Course List)
14th Edition
ISBN: 9781305073951
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Textbook Question
Chapter 20, Problem 10SQ
Formation of a(n) ___ allows some soil bacteria to survive adverse conditions.
- a. pilus
- b. nucleoid
- c. endospore
- d. plasmid
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Chapter 20 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 20 - Prob. 1SQCh. 20 - Prob. 2SQCh. 20 - Prob. 3SQCh. 20 - Prob. 4SQCh. 20 - __________ do not reproduce sexually. a....Ch. 20 - Prob. 6SQCh. 20 - Adapting to Host Defenses Surface proteins called...Ch. 20 - Prob. 2DAACh. 20 - Prob. 3DAACh. 20 - Adapting to Host Defenses Surface proteins called...
Ch. 20 - Prob. 7SQCh. 20 - Bacteria that serve as decomposers are ___ . a....Ch. 20 - Prob. 9SQCh. 20 - Formation of a(n) ___ allows some soil bacteria to...Ch. 20 - Prob. 11SQCh. 20 - Prob. 12SQCh. 20 - Which of these diseases is caused by bacteria? a....Ch. 20 - Prob. 14SQCh. 20 - Prob. 15SQCh. 20 - If a cut or scrape becomes infected,...Ch. 20 - The adenoviruses that cause colds do not have a...Ch. 20 - Prob. 3CTCh. 20 - Prob. 4CT
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- Some groups of bacteria can go dormant during periods of environmental stress through the formation of _______. A) magnetosomes B) peptidoglycan C) endospores D) piliarrow_forwardPrototrophs A. Can grow on complete media and minimal media B. Can grow on complete media but not minimal media C. Cannot grow on complete media but can grow on minimal media D. Are temperature sensitive E. Can’t make vitamins and amino acids de novoarrow_forwardWhy is the top part of a broth or slant culture heated in a flame immediately after removing the cap? a. to kill all the bacteria on the glass b. to sterilize the glass in case you touch it with your loop c. to stimulate the growth of bacteria in the tube d. to create warm air currents that keep other bacteria out e. to expand the glass of the test tube top so that the cap will fit more securelyarrow_forward
- Which 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_forwardEndospores are a) resistant to extreme temperatures b) produced by some prokaryotes c) can survive for decades d) all of the abovearrow_forwardCompared with their growth in the laboratory, bacteria innature generally growa) more slowly.b) faster.c) at the same rate.arrow_forward
- Considering what you know about molds and yeasts, why do you think that we do not use the same nutrient agar used for bacteria to grow yeasts and moldsarrow_forwardWhy are bacterial decomposers important? a. They produce spores. b. Common in biotechnology. c. They fix nitrogen. d. They break down complex organic molecules in wastes and remains. e. Most cause disease.arrow_forwardWhen do bacteria form endospores? a-When environmental conditions are unfavourable b-When they want to carry out photosynthesis c-When they want to reproduce through binary fission d-When they want to reproduce through conjugationarrow_forward
- Alexander Fleming was working with bacteria called staphylococcus, which looked like bunches of grapes under the microscope. He could grow colonies of these bacteria on petri dishes with a growth medium. When he returned from vacation, he found that several of these dishes had become contaminated with a fungus. The colonies near where the fungus was growing had been destroyed. Fleming then grew the mold and purposefully added it to a petri dish that contained bacteria colonies. The colonies exposed to the mold died. Fleming named the substance within the mold that killed bacteria "penicillin." REASONING: If mold contains a substance that kills bacteria, then ... a) bacteria exposed to mold would be destroyed b) bacteria could be grown on a growth medium c) fungus can be grown as easily as bacteriaarrow_forwardDoctors prescribe synergistic drug combinations to treatbacterial infections. The purpose of such treatment is to:(a) Change the bacteria with cell walls to L forms lackingcell walls(b) Reduce the treatment time of the disease(c) Prevent microorganisms from acquiring drug resis-tance(d) Reduce the toxic side effects of the antibiotics(e) Use lower doses of antibioticsarrow_forwardWhich of the following characteristics is not true of a plasmid?a. It is a circular piece of DNA.b. It is required for normal cell function.c. It is found in bacteria.d. It can be transferred from cell to cell.arrow_forward
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