JBL EMT Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the JBL EMT Exam and improve your chances of success. Study with our flashcards, multiple-choice questions, hints, and explanations. Get exam-ready!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

The freed flowing, watery portion of blood is called:

hemoglobin.
plasma.
red blood cells.
white blood cells.

The correct answer is: hemoglobin.

The correct answer is "plasma." Plasma is the fluid component of blood, making up approximately 55% of total blood volume. It contains various proteins, electrolytes, hormones, and waste products, and it is responsible for transporting these substances throughout the body. Hemoglobin refers to the protein in red blood cells that carries oxygen, while red and white blood cells are cellular components of blood rather than the fluid portion.