Prescott's Microbiology
11th Edition
ISBN: 9781260211887
Author: WILLEY, Sandman, Wood
Publisher: McGraw Hill
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Chapter 30.1, Problem 1CC
What factors influence oxygen solubility? How is this important in considering aquatic environments?
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how does the body increase oxygen availability at high altitude?
Chapter 30 Solutions
Prescott's Microbiology
Ch. 30.1 - Prob. 1MICh. 30.1 - What factors influence oxygen solubility? How is...Ch. 30.1 - Describe the buffering system that regulates the...Ch. 30.1 - Prob. 3CCCh. 30.1 - What features of a thermocline make it similar to...Ch. 30.2 - How is sulfur cycled between the anoxygenic...Ch. 30.2 - Prob. 1.1CCCh. 30.2 - Prob. 1.2CCCh. 30.2 - How do heterotrophic microbes contribute to the...Ch. 30.2 - Prob. 3MI
Ch. 30.2 - What is marine snow? Why is it important in CO2...Ch. 30.2 - Prob. 2.2CCCh. 30.2 - Prob. 2.3CCCh. 30.2 - Prob. 2.4CCCh. 30.2 - Prob. 2.5CCCh. 30.2 - Explain what is meant by upside-down microbial...Ch. 30.2 - Prob. 2.7CCCh. 30.3 - Figure 30.15 Nutrient Cycling in Antarctic Lakes...Ch. 30.3 - How does the contribution of benthic autotrophs...Ch. 30.3 - Why does water turbulence play only a minor role...Ch. 30.3 - Why is mixotrophy suited for survival in Antarctic...Ch. 30.3 - What is an oxygen sag curve? What changes in a...Ch. 30.3 - What are point and nonpoint source pollution? Can...Ch. 30.3 - Prob. 4CCCh. 30.3 - Prob. 5CCCh. 30.3 - Why do cyanobacteria often dominate waters that...Ch. 30 - Prob. 1RCCh. 30 - Prob. 2RCCh. 30 - Prob. 3RCCh. 30 - Prob. 4RCCh. 30 - Prob. 5RCCh. 30 - Prob. 6RCCh. 30 - Prob. 7RCCh. 30 - Prob. 8RCCh. 30 - The unicellular cyanobacterium Prochlorococcus sp....Ch. 30 - Prob. 2ALCh. 30 - It is well known that bacterivory (the consumption...Ch. 30 - Prob. 4AL
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- What is the difference between respiration and aerobic cellular respiration?arrow_forwardhow does the process of exhalation influence the pH of blood, considering the role of carbon dioxide (CO2) removal in regulating acid-base balance? Discuss the physiological mechanisms involved in maintaining blood pH during exhalation, including the role of respiratory control centers and the relationship between CO2 levels, bicarbonate, (HCO3-), carbonic acid (H2CO3) formation, and pH changes in the bloodstreamarrow_forwardCan the loss of water and electrolytes in exercise be exploited as a strategy to hunt prey?arrow_forward
- why do oxygen levels decreasearrow_forwardDuring high-intensity exercise, why does arterial Pco2 decrease beyond its usual set point? Arterial Po₂ is reduced during high intensity exercise, which stimulates chemoreceptors to increase ventilation beyond current CO2 production. During high intensity exercise, the blood becomes more alkaline, which leads to more CO2 being converted to H* and bicarbonate. Anaerobic metabolism does not produce CO₂. Acidic by-products of anaerobic metabolism decrease plasma pH, which stimulates central chemoreceptors to increase ventilation beyond current CO₂ production.arrow_forwardWhy transport oxygen is important ?arrow_forward
- When we change altitude, during the next few days, the body responds by adjusting Hb cooperativity. This can be accomplished by changing the concentration of 2,3-BPG in the blood. After moving from a low altitude to a higher altitude, does 2,3,-BPG increase or decrease? Explain how this affects oxygen transport capacityarrow_forwardBelow is the oxygen saturation curve for myoglobin and hemoglobin at a pH of 7. The p50 for myoglobin is indicated by the dashed lines on the graph. Mb and Hb O2 saturation: pH 7 10 0.8 Myoglobin 0.6 P50 = 0.2 0.4 Hemoglobin 0.2 - 0.0 pO2 [kPa] Which of these molecules (Mb/Hb/neither or both) has cooperativity? [ Select ] What would you expect to happen to the p50 of myoglobin if the pH were decreased to a pH of 4? [ Select ] Fraction saturationarrow_forwardIn our discussion of oxygen binding, we saw how oxygen affinity may be affected by temperature. The book mentions that "temperature effects may become a problem in the hypothermic limbs of mammals in Arctic climates," (pg. 650) but it doesn't explain why. Given what you understand about oxygen binding affinity and temperature, why would these animals have an issue? O The cold temperatures increase the binding affinity of oxygen to myoglobin. The cold temepratures decrease the binding affinity of oxygen to hemoglobin. The cold temperatures increase the binding affinity of oxygen to hemoglobin. The cold temperatures decrease the bindingg affinity of oxygen to myoglobin.arrow_forward
- The carbonic acid equilibria are shown below. Tissues that are aerobically active produce CO2. This causes this equilibrium to shift to the ______, which causes the pH of the blood to ______. H+ + HCO3- <--> H2CO3 <--> H2O + CO2 a) right; increase b) right; decrease c) left; increase d) left; decreasearrow_forwardHow does the concept of partial pressure explain the diffusion of oxygen into our blood stream? Why does this become more difficult at high altitudes?arrow_forwardList the effects of PCO2 on the oxygen flow?arrow_forward
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