TOPIC 2: CIRCULATION

Name

Class and Sec

Emily is playing soccer and is accidentally kicked in the leg, resulting in a cut that is bleeding heavily. Which type of blood cell is responsible for clotting and preventing excessive bleeding?

• Red blood cells
• White blood cells
• Platelets
• Plasma

John is a marathon runner who is participating in a race at a high altitude. As he runs, he notices that he is getting tired more quickly than usual and is having trouble catching his breath. Which type of blood cell is responsible for carrying oxygen from the lungs to the rest of John's body?

• Red blood cells
• White blood cells
• Platelets
• Plasma

Sara is feeling sick and has a fever. Her doctor suspects that she may have a bacterial infection. Which type of blood cell is responsible for fighting off bacterial infections and involved in the body's immune response?

• Red blood cells
• White blood cells
• Platelets
• Plasma

After donating blood, Tom feels lightheaded and dizzy. Which component of blood is responsible for transporting nutrients, hormones, and waste products, and may be a potential cause of Tom's symptoms?

• WBC
• RBC
• Platelets
• Plasma

John is exercising and feels a burning sensation in his muscles. Which type of blood vessel is responsible for delivering oxygen and nutrients to the muscle tissue and removing waste products?

• Arteries
• Veins
• Capillaries
• Lymphatic vessels

Sarah has kidney failure and is undergoing dialysis. Which waste product is removed from the blood during dialysis that is normally excreted in urine?

• Glucose
• Urea
• Calcium
• Sodium

Jacob is a 10-year-old boy who has sickle cell anemia. He complains of severe pain in his hands and feet. Which of the following is the cause of his pain?

• Blood clotting
• Abnormal red blood cell shape
• Low oxygen levels
• Platelet dysfunction

Sara is a 30-year-old woman who has been diagnosed with malaria. After being bitten by an infected mosquito, what is the first thing the malaria parasite does after invading Sara's body?

• It enters the bloodstream and infects red blood cells.
• It enters the liver and reproduces.
• It causes inflammation and tissue damage in the skin.
• It attaches to the lining of the lungs and starts to replicate