The chart below shows the oxygen saturation curve of adult hemoglobin. It compares saturation of the hemoglobin to the partial pressure of oxygen. Label the axes. Add two curves to the chart. One which represents hemoglobin in the high hopping horned goat that hops so high the oxygen pressure is low so it must have a higher affinity for oxygen than hemoglobin. Draw a second curve that represents the hemoglobin when the temperature has been artificially raised which lowers hemoglobin's affinity for oxygen. It may be easiest to draw the whole chart over again rather than adding to this one. Remember to label all three curves and axes. (note both of these examples are fictitious to prevent googling). THE OXYGEN-HEMOGLOBIN DISSOCIATION CURVE PARTIAL PRESSURE OF OXYGEN (PO,J (mmHg) HEMOGLOBIN SATURATION (%"os) N3DAXO HLIM

The chart below shows the oxygen saturation curve of adult hemoglobin. It compares saturation of the hemoglobin to the partial pressure of oxygen. Label the axes. Add two curves to the chart. One which represents hemoglobin in the high hopping horned goat that hops so high the oxygen pressure is low so it must have a higher affinity for oxygen than hemoglobin. Draw a second curve that represents the hemoglobin when the temperature has been artificially raised which lowers hemoglobin's affinity for oxygen. It may be easiest to draw the whole chart over again rather than adding to this one. Remember to label all three curves and axes. (note both of these examples are fictitious to prevent googling). THE OXYGEN-HEMOGLOBIN DISSOCIATION CURVE PARTIAL PRESSURE OF OXYGEN (PO,J (mmHg) HEMOGLOBIN SATURATION (%"os) N3DAXO HLIM

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter35: Respiration

Section: Chapter Questions

Problem 4CT: A developing fetus gets oxygen from its mothers blood. Fetal capillaries run through pools of...

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A developing fetus gets oxygen from its mothers blood. Fetal capillaries run through pools of maternal blood in an organ called the placenta. As fetal blood runs through these capillaries, it exchanges substances with the maternal blood around the capillary. The hemoglobin made by a fetus is different than that made after birth. Fetal hemoglobin binds oxygen more strongly at low oxygen levels than normal hemoglobin. How would fetal hemoglobins somewhat higher affinity for oxygen benefit the fetus?
Referring to the loading and unloading of oxygen from hemoglobin (as illustrated in the figure), which of the following statements is correct? Oxygen Dissociation Curve.png Group of answer choices When a person in ventilating at rest, 75% of hemoglobin is still oxyhemoglobin The percent saturation of hemoglobin is higher at higher partial pressures of oxygen A decrease in the pH of the blood would promote unloading oxygen from the hemoglobin All of these are correct
To demonstrate an understanding of oxyhemoglobin binding, insert a word from the list in each blank to complete the statements. Not all terms will be used. increased A right shift of the oxy-hemoglobin curve signifies a affinity for oxygen. hold acidic A temperature will cause a right shift of the oxy- hemoglobin curve. basic A more pH than normal blood pH will cause a right shift higher of the oxy-hemoglobin curve. As a person exercises, their muscles give off heat which raises the temperature of the blood. This will cause hemoglobin to more oxygen at the cells. lower release decreased
Which is true about the oxygen-hemoglobin dissociation curve? A decrease in pH decreases hemoglobin affinity for oxygen A decrease in temperature increases hemoglobin affinity for oxygen Oxygen unloads from hemoglobin when tissue PO2 decreases An increase in PCO2 decreases hemoglobin affinity for oxygen All of the above
Which of the following is the concentration of hemoglobin-bound oxygen in the blood when the heme is fully saturated? 8500 uM 8630 uM 2200 uM 8800 uM
Place a single word into each sentence to make it correct saturation The relationship between hemoglobin and Po2 is shown by an oxyhemoglobin dissociation curve. rises lowers At low Po2, the curve slowly load When the curve rises there is a rapid increase in oxygen loading. deficiency When the first heme group binds a molecule of oxygen, changes conformation to accept a second carbon dioxide Oxygen. Eventually at high Po2 levels, the hemoglobin approaches 100 % saturation and can not hemoglobin more oxygen.
After your exercise routine at the gym, you sit with friends drinking a glass of water to cool off. Select a single word from list and place into each blank to make it correct. Not all terms will be used. 40 mmHg right increases As you cool off, metabolism at the skeletal muscles decreases, and the oxygen saturation curve shifts affinity for oxygen because hemoglobin's . Under these conditions, hemoglobin 20% is likely to release oxygen. decreases At the same time, the partial pressure of oxygen at the systemic capillaries changes from about to less Carbon dioxide released from the skeletal muscle cells during vigorous exercise can make the blood slightly more acidic. This results in hemoglobin having a affinity. left oxygen saturation or oxygen higher 40% 20 mmHg lower more
A decrease in temperature increases hemoglobin's affinity for oxygen, decreasing oxygen unloading. This effect shifts the oxygen-hemoglobin dissociation curve to the right. True False
When a person develops a fever, which of the following statements hemoglobin saturation are correct? - Modify the structure of hemoglobin and decrease its affernity for O2 - Can shift the O2-hemoglobin dissociation curve to the right - Decrease O2 unloading occurs in the tissue - Modify the structure of hemoglobin and increase its affernity for O2 - Can shift the O2 hemoglobin dissociation curve to the left - Enhance O2 unloading occurs in the tissue
What units describe Hemoglobin and in your own words describe what Hemoglobin is What units describe Hematocrit and in your own words describe what Hematocrit is Pick one condition that casues high or low hemoglobin and explain why it causes high or low condition Pick one condition that casues high or low hematocrit and explain why it causes high or low condition
Draw three separate oxygen-hemoglobin dissociation curves and then use arrows to show the change in oxygen saturation of most hemoglobins when: 1. deoxygenated blood enters the capillaries in the lungs. 2. oxygenated blood enters the capillaries in muscle tissue at rest. 3. oxygenated blood enters the capillaries in muscle tissue during vigorous exercise.
A higher level of hemoglobin in the blood increases the blood’s density. This is the basis for a simple test that can be used to see if a prospective blood donor has a high enough hemoglobin level to donate safely. A drop of blood is placed in a copper sulfate solution, and the time for the drop to sink to the bottom is measured. If this time is too long, the hemoglobin level is toolow. Explain how this test works.