Mindtap Biology, 1 Term (6 Months) Printed Access Card For Solomon/martin/martin/berg's Biology, 11th
11th Edition
ISBN: 9781337393096
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 25.5, Problem 2C
Summary Introduction
To determine: The habitats where biofilms could be found.
Introduction: Biofilms are slimy masses of microbes that adhere to a substance by means of glycocalyx and fimbriae. They may be beneficial or harmful. Additionally, biofilms keep microbes together so that they can acquire nutrients from the shores.
Summary Introduction
To determine: The name of organisms expected to be found in biofilms.
Introduction: Biofilms, which are the primary natural habitat of microbes, is a synergistic association in which different microbial species are found attached to a substrate.
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Where would you expect to find biofilms? Name organisms you would expect to find in biofilms.
What is a biofilm? What is the advantage for microbes to form a biofilm?
Which of the following is correct about biofilms?
O 1) They are comprised only of psychrophiles.
O 2) They are more sensitive to changes in growth conditions than planktonic cells
O 3) Quorum sensing allows the biofilm community to behave differently than
planktonic organisms
4) Biofilms only form within the environment.
5) Pure cultures are necessary for biofilm formation.
Chapter 25 Solutions
Mindtap Biology, 1 Term (6 Months) Printed Access Card For Solomon/martin/martin/berg's Biology, 11th
Ch. 25.1 - Describe the structure and common shapes of...Ch. 25.1 - Prob. 2LOCh. 25.1 - Prob. 3LOCh. 25.1 - Prob. 1CCh. 25.1 - Prob. 2CCh. 25.1 - Prob. 3CCh. 25.2 - Describe asexual reproduction in prokaryotes and...Ch. 25.2 - State specific factors that contribute to the...Ch. 25.2 - Prob. 1CCh. 25.2 - Prob. 2C
Ch. 25.2 - Prob. 3CCh. 25.3 - Describe the principal modes by which prokaryotes...Ch. 25.3 - Prob. 1CCh. 25.3 - Prob. 2CCh. 25.3 - Prob. 3CCh. 25.4 - Compare characteristics of the three domains:...Ch. 25.4 - Prob. 8LOCh. 25.4 - Prob. 9LOCh. 25.4 - Prob. 1CCh. 25.4 - Prob. 2CCh. 25.5 - Prob. 10LOCh. 25.5 - Prob. 11LOCh. 25.5 - Prob. 1CCh. 25.5 - Prob. 2CCh. 25.5 - Prob. 3CCh. 25.5 - Prob. 4CCh. 25.6 - Prob. 12LOCh. 25.6 - Prob. 13LOCh. 25.6 - Why are Kochs postulates important?Ch. 25.6 - Prob. 2CCh. 25 - Peptidoglycan is a chemical compound found in the...Ch. 25 - Bacterial flagella (a) are homologous with...Ch. 25 - Prob. 3TYUCh. 25 - In conjugation, (a) two bacterial cells of...Ch. 25 - The majority of heterotrophic bacteria are (a)...Ch. 25 - Bacteria that are autotrophs (a) do not require...Ch. 25 - Bacteria that thrive in puncture wounds are likely...Ch. 25 - Which of the following do not belong to domain...Ch. 25 - Prob. 9TYUCh. 25 - Robert Koch (a) proposed a set of guidelines to...Ch. 25 - Which group of bacteria contains the...Ch. 25 - VISUALIZE Label the diagram.Ch. 25 - Prob. 13TYUCh. 25 - What would be the consequences for eukaryotes if...Ch. 25 - Prob. 15TYUCh. 25 - Prob. 16TYU
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- Where would you expect to find barotolerant and piezophilic bacteria? Explain your answer.arrow_forwardWhat are the advantages of biofilms as a growthmode over a planktonic lifestyle?arrow_forwardBy accident, you placed a mesophile organism in a growth medium at pH 8. You expected it to die but there was some growth. What mechanism could it have used?arrow_forward
- Describe a microbial biofilm. Discuss why it is likely that a biofilm contains bacteria with different energy metabolisms?arrow_forwardDiseases that involve biofilm-producing bacteria are of serious concern. They are not as easily treated compared with those involving free-floating (or planktonic) bacteria. Explain three reasons why biofilms can be more pathogenic.arrow_forwardBiofilms are often formed on artificial surfaces in the human body. During medical procedures, when artificial joints, intravenous catheters, urinary catheters are placed and injections are made, commensals/mutualists may be introduced into new sites in the body and there they may form biofilms. Which statement below is NOT a reason to explain why such bacteria living in biofilms are so difficult to eliminate? O layers of biofilm prevent phagocytes from killing bacteria O layers of biofilm acts a a diffusion barrier against antibiotics O biofilm stimulates bacteria to grow continually in the log/exponential phase of growth O layers of biofilm acts a a diffusion barrier against antibodies/immunoglobulins O bacteria often in stationary phase of growtharrow_forward
- What functions do endospores have in the proliferation, dispersal and survival of bacteria? Please explain.arrow_forwardWhich of the following is not true about biofilms a) are caused by many Gram positive and Gram negative bacteria as well as algae and fungi b) are highly contagious c) are hard to treat due to impermeability to drugsarrow_forwardwhat microbial features would you use a scanning electron microscope and transmission electron microscope to observe.arrow_forward
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