Biology_Circulatory system_Task B_MonalisaM

What components does the image show?

• Red blood cells, white blood cells, yellow blood cells and platelets

• Red blood cells, white blood cells, plates, plasma

• Red blood cells, white blood cells, platelets, plasma

• Red blood cells, transparent cells, plasma and platelets

Describe the structure of the heart and its chambers.

• The heart has three chambers: left atrium, left ventricle, and right ventricle.

• The heart has five chambers: right atrium, right ventricle, left atrium, left ventricle, and a central chamber.

• The heart consists of two chambers: atrium and ventricle.

• The heart has four chambers: right atrium, right ventricle, left atrium, and left ventricle.

Name blood vessels in the order of thick to thin walled

• Capillaries, veins and arteries

• Arteries, veins, and capillaries

• Arteries, capillaries, and veins

• Veins, capillaries, and arteries

Sarah cut her finger while playing, and it started bleeding. After a few minutes, the bleeding stopped on its own. Which component of blood was mainly responsible for this, and why is this function important in real-life situations?

• Red blood cells, because they deliver oxygen to the cut.

• Platelets, because they help in forming clots to stop bleeding.

• White blood cells, because they fight infections in the wound.

• Plasma, because it carries nutrients to the cells near the cut.

Imagine you’re helping your grandmother exercise to keep her heart healthy. She asks you why regular exercise is important for her heart and blood vessels. How would you explain it to her using what you know about the heart and circulation?

• Exercise helps the heart become stronger, which improves blood flow and oxygen supply to the body.

• Exercise keeps the blood thick, making it flow better through the blood vessels.

• Exercise slows down the heart rate permanently, reducing stress on the heart.

• Exercise keeps only the leg muscles strong, which doesn’t affect the heart.