
Brock Biology of Microorganisms (15th Edition)
15th Edition
ISBN: 9780134261928
Author: Michael T. Madigan, Kelly S. Bender, Daniel H. Buckley, W. Matthew Sattley, David A. Stahl
Publisher: PEARSON
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Chapter 30.2, Problem 1MQ
Summary Introduction
The major species in the group of A Streptococci are Streptococcus pyogenes, which is often isolated from the upper respiratory tract of the humans. It can cause serious infections, if the defense mechanism of the host is week or extremely virulent strain is encountered. Streptococcus pyogenes cause Streptococcal pharyngitis or strep throat. It also causes infections of the mammary gland (mastitis), middle ear infections (otitis media), and skin infections (impetigo).
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Normal dive (for diving humans)
normal
breathing
dive
normal
breathing
Oz level
CO2 level
urgent need
to breathe
Oz blackout zone
high CO2 triggers breathing
6. This diagram shows rates of oxygen depletion and carbon dioxide accumulation in the blood in
relation to the levels needed to maintain consciousness and trigger the urgent need to breathe in
diving humans.
How might the location and slope of the O₂ line differ for diving marine mammals such as
whales and dolphins?
•
How might the location and slope of the CO₂ line differ for diving marine mammals such as
whales and dolphins?
•
•
Draw in predicted lines for O2 and CO2, based on your reasoning above.
How might the location of the Urgent Need to Breathe line and the O2 Blackout Zone line
differ for diving marine mammals?
What physiological mechanisms account for each of these differences, resulting in the ability
of marine mammals to stay submerged for long periods of time?
foraging/diet type
teeth
tongue
stomach
intestines
cecum
Insectivory
numerous, spiky, incisors procumbentExample: moleExample: shrew
--
simple
short
mostly lacking
Myrmecophagy
absent or reduced in numbers, peg-likeExample: tamandua anteater
extremely long
simple, often roughened
short
small or lacking
Terrestrial carnivory
sharp incisors; long, conical canines; often carnassial cheek teeth; may have crushing molarsExample: dog
--
simple
short
small
Aquatic carnivory
homodont, spiky, numerousExample: common dolphin
--
simple or multichambered (cetaceans only)
variable
small or absent
Sanguinivory
very sharp upper incisors; reduced cheek teethExample: vampire bat
grooved
tubular, highly extensible
long
small or lacking
Herbivory (except nectivores)
incisors robust or absent; canines reduced or absent; diastema; cheek teeth enlarged with complex occlusal surfacesExample: beaver
--
simple (hindgut fermenters) or multichambered (ruminants)
long
large
Filter feeding
none…
3. Shown below is the dental formula and digestive tract anatomy of three mammalian species
(A, B, and C). What kind of diet would you expect each species to have? Support your
answers with what you can infer from the dental formula and what you can see in the
diagram. Broadly speaking, what accounts for the differences?
Species A
3/3, 1/1, 4/4, 3/3
པར『ན་
cm 30
Species B
4/3, 1/1, 2/2, 4/4
cm 10
Species C
0/4, 0/0,3/3, 3/3
020
Chapter 30 Solutions
Brock Biology of Microorganisms (15th Edition)
Ch. 30.1 - Why can it be said that respiratory pathogens have...Ch. 30.1 - Prob. 2MQCh. 30.1 - Prob. 1CRCh. 30.2 - Prob. 1MQCh. 30.2 - What is the primary virulence factor for...Ch. 30.2 - Prob. 1CRCh. 30.3 - Prob. 1MQCh. 30.3 - What measures can be taken to decrease the current...Ch. 30.3 - Prob. 1CRCh. 30.4 - Why is Mycobacterium tuberculosis a widespread...
Ch. 30.4 - Prob. 2MQCh. 30.4 - QDescribe the process of infection by...Ch. 30.5 - Identify the symptoms and causes of meningitis.Ch. 30.5 - Describe the infection by Neisseria meningitidis...Ch. 30.5 - QDescribe the symptoms of meningococcemia and...Ch. 30.6 - How do the genomes of the measles virus and the...Ch. 30.6 - Describe the potential serious outcomes of...Ch. 30.6 - Identify the effects of immunization on the...Ch. 30.6 - Prob. 1CRCh. 30.7 - Prob. 1MQCh. 30.7 - Discuss the possibilities for effective treatment...Ch. 30.7 - QWhy are colds such common respiratory diseases,...Ch. 30.8 - Distinguish between antigenic drift and antigenic...Ch. 30.8 - Prob. 2MQCh. 30.8 - Prob. 1CRCh. 30.9 - What is the normal habitat of Staphylococcus...Ch. 30.9 - Prob. 2MQCh. 30.9 - QDistinguish between pathogenic staphylococci and...Ch. 30.10 - Prob. 1MQCh. 30.10 - How can gastric ulcers be diagnosed? How can they...Ch. 30.10 - QDescribe the evidence linking Helicobacter pylori...Ch. 30.11 - Prob. 1MQCh. 30.11 - Prob. 2MQCh. 30.11 - Prob. 1CRCh. 30.12 - Prob. 1MQCh. 30.12 - Prob. 2MQCh. 30.12 - Prob. 1CRCh. 30.13 - Prob. 1MQCh. 30.13 - Explain at least one potential reason for the high...Ch. 30.13 - Prob. 3MQCh. 30.13 - QWhy did the incidence of gonorrhea rise...Ch. 30.14 - Prob. 1MQCh. 30.14 - Prob. 2MQCh. 30.14 - Prob. 1CRCh. 30.15 - Prob. 1MQCh. 30.15 - Prob. 2MQCh. 30.15 - Prob. 3MQCh. 30.15 - QDescribe how human immunodeficiency virus (HIV)...Ch. 30 - Prob. 1AQCh. 30 - Prob. 2AQCh. 30 - Prob. 3AQCh. 30 - Discuss the molecular biology of antigenic shift...
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- 3. Shown below is the dental formula and digestive tract anatomy of three mammalian species (A, B, and C). What kind of diet would you expect each species to have? Support your answers with what you can infer from the dental formula and what you can see in the diagram. Broadly speaking, what accounts for the differences? Species A 3/3, 1/1, 4/4, 3/3 cm 30 Species B 0/4, 0/0, 3/3, 3/3 cm 10 Species C 4/3, 1/1, 2/2, 4/4 E 0 cm 20 AILarrow_forwardNormal dive (for diving humans) normal breathing dive normal breathing Oz level CO₂ level urgent need to breathe Oz blackout zone high CO₂ triggers breathing 6. This diagram shows rates of oxygen depletion and carbon dioxide accumulation in the blood in relation to the levels needed to maintain consciousness and trigger the urgent need to breathe in diving humans. • How might the location and slope of the O2 line differ for diving marine mammals such as whales and dolphins? • How might the location and slope of the CO2 line differ for diving marine mammals such as whales and dolphins? • • Draw in predicted lines for O2 and CO2, based on your reasoning above. How might the location of the Urgent Need to Breathe line and the O2 Blackout Zone line differ for diving marine mammals? What physiological mechanisms account for each of these differences, resulting in the ability of marine mammals to stay submerged for long periods of time?arrow_forwardHow much ATP will be produced during the following metabolic scenario: Aerobic respiration of a 5mM lipid solution that is made up of one glycerol and an 8-carbon fatty acid and 12-carbon fatty acid. Recall that when glycerol breaks down to Glyceraldehyde-3-phosphate it costs one ATP but your get an extra FADH2. Every two carbons of a fatty acid break down to one acetyl-CoA. Units cannot be entered in this style of question but the units of your answer should be in mM of ATP.arrow_forward
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