Multiple choice

Which of the following contains about 90 percent water and dissolved substances like proteins, digested food, common salt, waste products and hormones?

  1. WBCs

  2. Platelets

  3. RBCs

  4. Plasma

  5. None of the above

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This is the correct option. Plasma contains about 90 percent water and dissolved substances like proteins, digested food, common salt, waste products and hormones.