Human Physiology: An Integrated Approach (7th Edition)
7th Edition
ISBN: 9780321981226
Author: Dee Unglaub Silverthorn
Publisher: PEARSON
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Chapter 18, Problem 15RQ
Why did oxygen-transporting molecules evolve in animals?
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Ch.23
How is Salmonella able to cross from the intestines into the blood?
A. it is so small that it can squeeze between intestinal cells
B. it secretes a toxin that induces its uptake into intestinal epithelial cells
C. it secretes enzymes that create perforations in the intestine
D. it can get into the blood only if the bacteria are deposited directly there, that is, through a puncture
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Which virus is associated with liver cancer?
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C. hepatitis C
D. both hepatitis B and C
—
explain your answer thoroughly
Ch.21
What causes patients infected with the yellow fever virus to turn yellow (jaundice)?
A. low blood pressure and anemia
B. excess leukocytes
C. alteration of skin pigments
D. liver damage in final stage of disease
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What is the advantage for malarial parasites to grow and replicate in red blood cells?
A. able to spread quickly
B. able to avoid immune detection
C. low oxygen environment for growth
D. cooler area of the body for growth
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Which microbe does not live part of its lifecycle outside humans?
A. Toxoplasma gondii
B. Cytomegalovirus
C. Francisella tularensis
D. Plasmodium falciparum
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explain your answer thoroughly
Ch.22
Streptococcus pneumoniae has a capsule to protect it from killing by alveolar macrophages, which kill bacteria by…
A. cytokines
B. antibodies
C. complement
D. phagocytosis
—
What fact about the influenza virus allows the dramatic antigenic shift that generates novel strains?
A. very large size
B. enveloped
C. segmented genome
D. over 100 genes
—
explain your answer thoroughly
Chapter 18 Solutions
Human Physiology: An Integrated Approach (7th Edition)
Ch. 18 - Cellular metabolism review: which of the following...Ch. 18 - Why doesnt the movement of oxygen from the alveoli...Ch. 18 - If nitrogen is 78% of atmospheric air, what is the...Ch. 18 - At the summit of Mt. Everest, an altitude of 8850...Ch. 18 - Prob. 5CCCh. 18 - If alveolar ventilation increases, what happens to...Ch. 18 - True or false? Plasma with a PO2 of 40 mm Hg and a...Ch. 18 - A saline solution is exposed to a mixture of...Ch. 18 - Can a person breathing 100% oxygen at sea level...Ch. 18 - What effect does hyperventilation have on the...
Ch. 18 - A muscle that is actively contracting may have a...Ch. 18 - How would an obstruction of the airways affect...Ch. 18 - List five factors that influence the diffusion of...Ch. 18 - Prob. 2RQCh. 18 - Prob. 3RQCh. 18 - Describe the structure of a hemoglobin molecule....Ch. 18 - Prob. 5RQCh. 18 - Describe the chemoreceptors that influence...Ch. 18 - Describe the protective reflexes of the...Ch. 18 - What causes the exchange of oxygen and carbon...Ch. 18 - List five possible physical changes that could...Ch. 18 - Concept map: Construct a map of gas transport...Ch. 18 - Prob. 11RQCh. 18 - Prob. 12RQCh. 18 - Prob. 13RQCh. 18 - Define hypoxia, COPD, and hypercapnia.Ch. 18 - Why did oxygen-transporting molecules evolve in...Ch. 18 - Draw and label the following graphs: a. the effect...Ch. 18 - Prob. 17RQCh. 18 - Prob. 18RQCh. 18 - Create reflex pathways (stimulus, receptor,...Ch. 18 - Prob. 20RQCh. 18 - Which person carries more oxygen in his blood? a....Ch. 18 - What would happen to each of the following...Ch. 18 - In early research on the control of rhythmic...Ch. 18 - Prob. 24RQCh. 18 - Prob. 25RQCh. 18 - Prob. 26RQCh. 18 - Prob. 27RQCh. 18 - Prob. 28RQCh. 18 - Adolph Fick, the nineteenth-century physiologist...Ch. 18 - Prob. 30RQ
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