This formative checks your understanding of blood and the circulatory system, including red blood cells, white blood cells, platelets, plasma, and how oxygen is transported. Answer each question based on what you have learned.
Which is a main function of the circulatory system?
Blood is made up of cells and cell fragments suspended in which liquid?
Blood is a tissue.
What is the main function of red blood cells (erythrocytes)?
How does the biconcave disc shape of red blood cells help them do their job?
What is the role of haemoglobin in red blood cells?
Why do mature red blood cells have no nucleus?
In the lungs, oxygen diffuses into the blood. Which equation describes what happens in red blood cells?
In body tissues, oxygen is released from the blood to the cells. Which equation describes this?
Which TWO substances are carried by plasma? (Select 2)
What is the main function of white blood cells (leukocytes)?
Which feature helps identify white blood cells compared with red blood cells?
Phagocytes help defend the body by…
B lymphocytes mainly help defend against disease by producing…
What is the main function of platelets?
Which TWO substances are carried by plasma? (Select 2)
What is the main function of white blood cells (leukocytes)?
Which feature is typical of white blood cells but NOT typical of mature red blood cells?
Phagocytes help defend the body by doing what?
What do B lymphocytes produce to help defend against microorganisms?
What is the main function of platelets?