Practice Quiz

CLEP Biology Practice Exam

Category - Biology

Start a Study Session Sign up for Question of the Day
Which of the following statements best explains why oxygen diffuses from the alveoli into the blood?
  1. The diaphragm draws oxygen into the alveoli at a rapid speed.
  2. Alveoli cells contain hemoglobin to transfer gases to the blood.
  3. The concentration of oxygen is greater in the alveoli than in the blood.
  4. Red blood cells move one at a time through the capillaries surrounding the alveoli.
Explanation
Answer: C - The concentration of oxygen is greater in the alveoli than in the blood.
Previous Next
Was this helpful? Upvote!
Login to contribute your own answer or details
Start a Study Session Sign up for Question of the Day

Top questions

Related questions

Most popular on PracticeQuiz