Campbell Biology in Focus
3rd Edition
ISBN: 9780134710679
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Rebecca Orr
Publisher: PEARSON
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Textbook Question
Chapter 34.7, Problem 1CC
What determines whether O2, or CO2, undergoes net diffusion into or out of capillaries? Explain.
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What does an erythrocyte gain by the loss of its nucleus and organelles? What three cellular processes can it no longer engage in due to the loss of its (a) nucleus and (b) mitochondria?
Why does hemoglobin have high affinity for oxygen in arterial blood and lower affinity in capillaries beds? Explain in terms of blood oxygen pressure.
Assume the following pressures on the arterial end of a capillary:
Plasma hydrostatic pressure = 35mmHg
Plasma osmotic pressure = 26mmHg
Interstitial hydrostatic pressure = 0mmHg
Interstitial osmotic pressure = 1mmHg
Given the pressures listed above, what is happening to fluid in this scenario?
A. Fluid is leaving the capillary
B. Fluid is entering the capillary
C. Fluid is leaving the cell
D. Fluid is entering the cell
Chapter 34 Solutions
Campbell Biology in Focus
Ch. 34.1 - How is the now of hemolymph through an open...Ch. 34.1 - Three-chambered hearts with incomplete septa were...Ch. 34.1 - Prob. 3CCCh. 34.2 - Prob. 1CCCh. 34.2 - Why is it important that the AV node delay the...Ch. 34.2 - Prob. 3CCCh. 34.3 - What is the primary cause of the low velocity of...Ch. 34.3 - Prob. 2CCCh. 34.3 - Prob. 3CCCh. 34.4 - Prob. 1CC
Ch. 34.4 - Prob. 2CCCh. 34.4 - Prob. 3CCCh. 34.4 - Prob. 4CCCh. 34.5 - Why is an internal location for gas exchange...Ch. 34.5 - After a heavy rain, earthworms come to the...Ch. 34.5 - MAKE CONNECTIONS Describe similarities in the...Ch. 34.6 - Prob. 1CCCh. 34.6 - Prob. 2CCCh. 34.6 - WHAT IF? If an injury tore a small hole in the...Ch. 34.7 - What determines whether O2, or CO2, undergoes net...Ch. 34.7 - How does the Bohr shift help deliver O2, to very...Ch. 34.7 - Prob. 3CCCh. 34 - Which of the following respiratory systems is not...Ch. 34 - Blood returning to the mammalian heart in a...Ch. 34 - Pulse is a direct measure of A. blood pressure. B....Ch. 34 - Prob. 4TYUCh. 34 - One feature that amphibians and humans have in...Ch. 34 - If a molecule of CO2 released into the blood in...Ch. 34 - Prob. 7TYUCh. 34 - DRAW IT Plot blood pressure against time for one...Ch. 34 - Prob. 9TYUCh. 34 - Prob. 10TYUCh. 34 - Prob. 11TYUCh. 34 - SYNTHESIZE YOUR KNOWLEDGE The diving bell spider...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- what is the contribution of enucleated erythrocytes to homeothermy?arrow_forwardContrast diffusion and bulk flow. Which mechanism is more important in the exchange of nutrients, oxygen, and metabolic end products across the capillary wall?arrow_forwardA trout exposed to acid mine drainage experiences an increase in mucus production along the gills. According to Fick’s law of diffusion, how would that affect the movement of oxygen through the gill capillaries?arrow_forward
- . Erythropoietin is available as a drug. Why would athletesabuse it?arrow_forwardIn a resting person, how many O2 molecules are attached to each hemoglobin molecule, on average, in blood in the pulmonary arteries? In blood in the pulmonary veins?arrow_forwardThe heart of a normally developing human fetus has a hole between the left and right atria. In some cases, this hole does not close completely before birth. If the hole weren’t surgically corrected, how would it affect the O2 content of the blood entering the systemic circuit?arrow_forward
- In pneumonia, fluid accumulates in the alveoli of the lungs. How would this accumulation affect vital capacity?arrow_forwardBlood pressure at the arterial end of capillaries is about 40 mm Hg in humans. If blood pressure at the venous end is about 15 mm Hg, and colloid osmotic pressure is 25 mm Hg throughout, what is the net effect on fluid movement between capillaries and tissue spaces?arrow_forwardWhat is the pulmonary circulatory path of deoxygenated blood from the neck to the oxygenated blood to the kidneys?arrow_forward
- What is the functional significance of the shape of an erythrocyte?arrow_forwardSevere hemorrhage increases peripheral vasoconstriction and heart rate. Why does it cause rapid breathing?arrow_forwardWhat is the relationship between the number of reticulocytes in the peripheral blood and erythropoietin activity in the bone marrow?arrow_forward
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