Composition of Blood Quiz

Blood is a __ that circulates around through the body.

• plasma
• tissue
• marrow
• rbc

The average adult has about __ pints of blood. 

• 5
• 10
• 15
• 20

Blood is made up of __ % blood cells. 

• 45
• 55

Plasma makes up about __ % of blood. 

• 45
• 55

What is made in the bone marrow? 

• blood cells
• plasma
• nutrients

Red blood cells are also known as 

• leukocytes
• thrombocytes
• erthrocytes

Hemoglobin is found in rbc's and carry oxygen and carbon dioxide.

• true
• false

Hemoglobin is a (an) __ containing protein. 

• magnesium
• calcium
• iron
• sodium

Red blood cells have a nucleus. 

• true
• false

White blood cells are the only blood cells that contain DNA. 

• true
• false