Podcast
Questions and Answers
Which of the following respiratory pigments is a monomeric protein with a single heme molecule?
Which of the following respiratory pigments is a monomeric protein with a single heme molecule?
- Hemerythrins
- Hemoglobin
- Hemocyanins
- Myoglobin (correct)
Which of the following respiratory pigments have multiple O2 binding sites (up to 160)?
Which of the following respiratory pigments have multiple O2 binding sites (up to 160)?
- Chlorocruorins
- Hemerythrins
- Hemoglobin
- Hemocyanins (correct)
Which of the following respiratory pigments is found in four types of marine annelid worms?
Which of the following respiratory pigments is found in four types of marine annelid worms?
- Hemoglobin
- Chlorocruorins (correct)
- Hemocyanins
- Hemerythrins
Which of the following respiratory pigments is found intracellularly in muscle and blood cells?
Which of the following respiratory pigments is found intracellularly in muscle and blood cells?
Which of the following respiratory pigments is found in blood and may have up to four heme-globin subunits?
Which of the following respiratory pigments is found in blood and may have up to four heme-globin subunits?
Which phase of the oxygen dissociation curve determines O2 loading at the gills or lungs?
Which phase of the oxygen dissociation curve determines O2 loading at the gills or lungs?
Which phase of the oxygen dissociation curve determines O2 unloading at the tissues?
Which phase of the oxygen dissociation curve determines O2 unloading at the tissues?
As PO2 decreases, what happens to the off-loading of O2?
As PO2 decreases, what happens to the off-loading of O2?
Which respiratory pigment shows no cooperativity and always has greater O2 affinity than hemoglobin?
Which respiratory pigment shows no cooperativity and always has greater O2 affinity than hemoglobin?
Which of the following gases no longer contribute to partial pressure when they chemically combine with other molecules?
Which of the following gases no longer contribute to partial pressure when they chemically combine with other molecules?
Which of the following is true about the oxygen dissociation curve P50?
Which of the following is true about the oxygen dissociation curve P50?
What does the P50 value represent on the oxygen dissociation curve?
What does the P50 value represent on the oxygen dissociation curve?
Which animal has a P50 value of approximately 6kPa PO2?
Which animal has a P50 value of approximately 6kPa PO2?
What is hematocrit?
What is hematocrit?
What factors affect the P50 value?
What factors affect the P50 value?
Which of the following is NOT an organophosphate modulator?
Which of the following is NOT an organophosphate modulator?
What is the main reason why fetal blood has higher O2 affinity than adult blood?
What is the main reason why fetal blood has higher O2 affinity than adult blood?
Which animals living in high O2 environments generally have high P50 and a strong Bohr shift?
Which animals living in high O2 environments generally have high P50 and a strong Bohr shift?
Which animals generally have a low P50 and a blunted panic response to high CO2?
Which animals generally have a low P50 and a blunted panic response to high CO2?
What is the relationship between body size and P50?
What is the relationship between body size and P50?
