This topic contains a solution. Click here to go to the answer

Author Question: Which of the following increases the affinity of Hb for O2? 1. Decreased 2,3-DPG 2. Decreased PCO2 ... (Read 268 times)

ericka1

  • Hero Member
  • *****
  • Posts: 544
Which of the following increases the affinity of Hb for O2? 1. Decreased 2,3-DPG 2. Decreased PCO2 3. Increased pH 4. Increased temperature
 
  a. 1, 2, and 3 only
  b. 1, 2, and 4 only
  c. 3 and 4 only
  d. 3 and 4 only

Question 2

The affinity of Hb for carbon monoxide (CO) is approximately how many times greater than its affinity for O2?
 
  a. 10 to 50 times greater
  b. 50 to 90 times greater
  c. 100 to 190 times greater
  d. 200 or greater



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Ksh22

  • Sr. Member
  • ****
  • Posts: 297
Answer to Question 1

ANS: B
An increased pH results in a right shift in the O2-hemoglobin dissociation curve resulting in a de-creased affinity.

Answer to Question 2

ANS: D
Carboxyhemoglobin (HbCO) is the chemical combination of hemoglobin with CO. Hemoglobin's affinity for CO is more than 200 times greater than it is for O2.





 

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.

Did you know?

After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

For a complete list of videos, visit our video library