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If tissues are undergoing normal metabolism, at what percentage of o2 saturation will o2 begin to unload from hemoglobin?

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Irving Heathcote
Irving HeathcoteLv2
29 Sep 2019

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Related questions

9. Which of the following best represents the systemic arterial blood of an individual with anemia?

A. Low PO2, low hemoglobin, low O2 content

B. Low PO2, low hemoglobin, normal O2 content

C. Low PO2, normal hemoglobin, low O2 content

D. Low PO2, normal hemoglobin, normal O2 content

E. Normal PO2, low hemoglobin, low O2 content this is the correct answer but what would be the arterial hemoglobin saturation be with individuals with anemia?I need to explain for this!

F. Normal PO2, low hemoglobin, normal O2 content

G. Normal PO2, normal hemoglobin, low O2 content

H. Normal PO2, normal hemoglobin, normal O2 content

Hyperventilation leads to decreased arterial PCO2.

a. What effect will this have on blood pH and why?

b. What effect will this have on the O2-Hb dissociation curve? How will this affect O2 binding to hemoglobin at the lungs and at the tissues?

c. After a person hyperventilates, would resting respiration rate be higher than, lower than, or the same as normal? Why? d. Why would hyperventilation increase the amount of time you could hold your breath?

In deep sea vents, you find a new species of worm that has a hemoglobin-like molecule with several important changes. They are: 1) There are no histidines in the molecule; all seemingly have been replaced by cysteine, and 2) instead of being a tetramer, this hemoglobin is a heptamer. From these data, please answer the following two questions.4

29) Which of the following statements about the oxygen saturation of this new hemoglobin is true?

A) The saturation curve will be steeper than human hemoglobin

B) The saturation curve will not be as steep as human hemoglobin

C) The saturation curve should look like human hemoglobin

D) The saturation curve should look like human myoglobin

30) You find the Bohr effect still applies to this new hemoglobin. Which of the following is most likely the internal pH of these worms?

A) 3.5

B) 6.0

C) 8.5

D) All of these answers are reasonable

E) This scenario contains no information for me to even make a stab at answering this ludicrous question

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