CO binds to hemoglobin approximately how many times more readily than oxygen?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $9.99Unlock all

Prepare for your Firefighting and Rescue ICS Test with comprehensive multiple choice questions, detailed explanations, and expert tips. Master fire chemistry and firefighting safety to excel in your exams!

Multiple Choice

CO binds to hemoglobin approximately how many times more readily than oxygen?

Explanation:
Carbon monoxide binds to hemoglobin far more readily than oxygen, about 200 times stronger. This means CO quickly occupies binding sites to form carboxyhemoglobin, which lowers the amount of oxygen that can be carried and delivered to tissues. The result is impaired oxygen utilization even at relatively low concentrations of CO. That high affinity is why the standard figure used in safety and physiology is approximately 200 times greater, making 200 the best answer.

Carbon monoxide binds to hemoglobin far more readily than oxygen, about 200 times stronger. This means CO quickly occupies binding sites to form carboxyhemoglobin, which lowers the amount of oxygen that can be carried and delivered to tissues. The result is impaired oxygen utilization even at relatively low concentrations of CO. That high affinity is why the standard figure used in safety and physiology is approximately 200 times greater, making 200 the best answer.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy