Concept 5.1 Lecture Video and Quiz

What is the primary function of blood?

• Excretion

• Respiration

• Digestion

• Transport

What percentage of your body weight is made up of blood?

• 12%

• 10%

• 8%

• 5%

Which of the following is NOT a function of blood?

• Transporting oxygen

• Regulating body temperature

• Producing hormones

• Preventing infection

What is the main component of plasma?

• Red blood cells

• Platelets

• White blood cells

• Water

What percentage of whole blood is made up of red blood cells?

• 55%

• 25%

• 35%

• 45%

What is the shape of a mature red blood cell?

• Flat

• Cuboidal

• Biconcave

• Spherical

What protein in red blood cells binds to oxygen?

• Keratin

• Hemoglobin

• Myoglobin

• Collagen

Where are blood cells formed in the body?

• Red bone marrow

• Liver

• Spleen

• Lymph nodes

Tags

NGSS.HS-LS1-4

What is the first step in the process of hemostasis?

• Fibrinolysis

• Platelet plug formation

• Vascular spasm

• Coagulation

Tags

NGSS.HS-LS1-3

What forms a mesh-like clot during coagulation?

• Platelets

• Fibrin proteins

• Red blood cells

• White blood cells