Quiz on Blood Functions and Components

What is the primary function of blood in vertebrates?

• To deliver necessary substances such as nutrients and oxygen to cells

• To store energy in the form of fat

• To produce hormones

• To regulate body temperature

What are red blood cells also known as?

• Leukocytes

• Erythrocytes

• Platelets

• Plasma cells

What percentage of blood fluid is plasma?

• 45%

• 55%

• 65%

• 75%

Which component of blood is primarily responsible for fighting infections?

• Red blood cells

• White blood cells

• Platelets

• Plasma

What is the main role of platelets in the blood?

• Transporting oxygen

• Fighting infections

• Building clots on bleeding wounds

• Delivering nutrients

Where are all three cell types in blood formed?

• In the liver

• In the spleen

• In the bone marrow

• In the lymph nodes

What is the primary component of plasma by volume?

• Proteins

• Water

• Glucose

• Hormones

What is another name for white blood cells?

• Erythrocytes

• Leukocytes

• Thrombocytes

• Plasma cells

What do blood cells transport to the body's organs and tissues?

• Carbon dioxide

• Oxygen

• Hormones

• Glucose

What is the role of blood plasma?

• To fight infections

• To transport oxygen

• To suspend blood cells

• To build clots