Resp-6

What is the extraction ratio at rest?

Which term refers to keeping the environment around the cell constant?

What happens when Po2 is decreased up to 40%?

What is the dangerous effect of changing concentrations for H2 or Na+?

What shape is mentioned in relation to the effect of decreasing Po2?

What happens to the partial pressure of oxygen (PO2) in the blood if a person breathes pure oxygen?

How does breathing pure oxygen affect oxygen in the blood?

What is the impact of free radicals formed from oxygen species on cells?

What term is used to describe oxygen species that can destroy cellular components?

Why is breathing pure oxygen potentially harmful to cells?

What is the minimum Po2 level needed in zone 3 for the content of O2 to be 18 or higher?

When the Po2 doubles to 200, what happens to the saturation of Hbs?

What is the amount of O2 needed for cells in relaxation when Po2 is 60 or higher in zone 3?

What is the feedback type in the respiratory system regarding O2 levels?

What happens to impulses from the respiratory centers when Po2 reaches 200?

What is the percentage of oxygen that is dissolved in plasma?

What is the formula to calculate the oxygen concentration dissolved in plasma according to Henry's Law?

How much oxygen can 1 gram of hemoglobin maximally bind reversibly?

What is the average hemoglobin concentration in the blood for males?

If we have 1 dl of blood, how much oxygen in total (in ml) is present (both dissolved and bound)?

What happens when a baby takes their first breath?

What is the role of bone marrow when a baby takes its first breath?

How many types of substances does the bone marrow release when a baby takes their first breath?

What initiates the release of (2α 2β) from the bone marrow in a newborn?

Which of the following substances is released by the bone marrow when a baby takes their first breath?

What percentage of saturation is achieved when hemoglobin binds to 2 molecules of O2?

At what percentage of saturation is hemoglobin when it binds to 3 molecules of O2?

How much saturation is achieved by hemoglobin when it releases all O2 molecules?

If hemoglobin binds to 1 molecule of O2, what percentage of saturation does it achieve?

What happens to hemoglobin saturation when it binds to 4 molecules of O2?

Why is high apical PO2 unable to correct low PO2 (base) when mixed in the left ventricle or left atrium?

What effect does mixing high apical PO2 and low base PO2 have on oxygen content in the blood?

What is the consequence of having high apical PO2 mixing with low base PO2 in terms of oxygen delivery to tissues?

How does the interaction between high apical PO2 and low base PO2 influence oxygen-hemoglobin saturation?

What role does the left ventricle or left atrium play in maintaining oxygen levels when high apical PO2 mixes with low base PO2?

What is the consequence of Po2 reaching 200 in terms of the respiratory centers?

What is the oxygen content required by cells in relaxation when Po2 = 60 or higher in zone 3?

What type of feedback is involved in the respiratory system regarding oxygen levels?

What happens to the saturation of Hbs when Po2 doubles to 200?

Which zone is defined by a Po2 range of 60-100 where the cells need 5 ml of oxygen?

What happens to ventilation when ascending to high altitudes?

At what point does hyperventilation occur during the ascent to high altitudes?

What is the relationship between altitude and partial pressure of oxygen (Po2) during ascent?

How does ventilation change as one climbs to higher altitudes?

When ascending to high altitudes, what happens to the partial pressure of oxygen (Po2) as the altitude increases?

What is the Po2 value for the numbers discussed in the text?

In what zone does the content of O2 need to be 18 or higher when Po2 is 40?

What is the impact on O2 saturation of Hbs when Po2 doubles to 200?

When does the bone marrow release (2α 2β) in a newborn?

What is the extraction ratio when a person is at rest?

What type of curve is created by the phenomena of sigmoidal binding of oxygen to Hb?

In which zone does hemoglobin find it most difficult to bind to oxygen?

At which point does the process of binding oxygen to hemoglobin get easier?

What characteristic shape does the sigmoid curve exhibit due to the varying ease of binding oxygen to hemoglobin?

Which zone presents a challenge for hemoglobin to be fully saturated with oxygen?

What is the main factor that causes the shift to the left in the oxygen-hemoglobin dissociation curve?

In fetal hemoglobin (HBF), what prevents the binding of 2-3 DPG to hemoglobin?

What is the consequence of having high 2-3 DPG levels in relation to the oxygen-hemoglobin dissociation curve?

What structural difference between adult and embryonic hemoglobin prevents 2-3 DPG binding in embryos?

Which factor contributes to a right shift in the oxygen-hemoglobin dissociation curve?

What is the maximum amount of oxygen in milliliters that 1 gram of hemoglobin can reversibly bind to?

If the oxygen concentration dissolved in plasma is 0.3 ml/dl, and the oxygen bound to hemoglobin is 20 ml/dl, what is the total oxygen content for 1 dl of blood?

What percentage of oxygen is dissolved in plasma?

For males, what is the average concentration of hemoglobin in the blood in grams per deciliter?

If a female's hemoglobin concentration in the blood is 13 g/dl, how much oxygen (in ml) can be bound by 1 dl of blood?

What is the potential consequence of a person breathing pure oxygen, which leads to a decrease in PO2 in blood?

In the context provided, what is the implication of PO2 in blood decreasing from 760 mmHg to 650 mmHg due to breathing pure oxygen?

What is the primary effect of high apical PO2 in the presence of low base PO2 when considering oxygen utilization in tissues?

When a person breathes pure oxygen and the PO2 in blood decreases, what is the likely impact on cellular components due to the generation of free radicals?

What is the expected outcome when the PO2 in blood changes from 760 mmHg to 650 mmHg as a person breathes pure oxygen?

What effect does an increase in temperature and binding to 2-3 DPG have on oxygen?

How does binding to 2-3 DPG affect the saturation of hemoglobin with oxygen?

What role does 2-3 DPG play in the binding of oxygen to hemoglobin?

How does a decrease in temperature affect the release of oxygen from hemoglobin?

What is the impact of binding to 2-3 DPG on the oxygen-hemoglobin dissociation curve?