Integrated Science- Form 4- Cardiovascular System

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    The function of red blood cells is:

    • To engulf and destroy pathogens
    • To bind to and carry oxygen
    • To create antibodies to fight infection.
    • To regulate body temperature
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About This Quiz


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This quiz contains 10 Multiple Choice items and 5 Fill in the Blanks items. Please attempt ALL these items within the time provided (30 minutes. )

Good Luck.

Integrated Science- Form 4- Cardiovascular System - Quiz

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  • 2. 

    The blood cells responsible for clotting of blood are called:

    • Plasma

    • Phagocytes

    • Platelets

    • Protozoa

    Correct Answer
    A. Platelets
    Explanation
    Platelets help the blood to clot.

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  • 3. 

    If a person has B antigens present on his red blood cells, this person's blood type is:

    • A

    • B

    • AB

    • Rh-

    Correct Answer
    A. B
    Explanation
    The presence of B antigens suggests that the blood type is type B.

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  • 4. 

    It is important to know the blood type of a person to avoid a dangerous blood transfusion. If someone with blood type B is to receive blood, which of the following blood types would allow for a safe blood transfusion?

    • A

    • AB

    • O

    • Rh+

    Correct Answer
    A. O
    Explanation
    B antigens will fight against A antigens present in blood type A, and AB. Blood type O has no antigens and so this would be safe.

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  • 5. 

    Which of the following blood vessels carry blood away from the heart?

    • Arteries

    • Veins

    • Capillaries

    • All of the above

    Correct Answer
    A. Arteries
    Explanation
    Arteries carry blood away from the heart and veins carry blood towards the heart.

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  • 6. 

    Muscles need ______, glucose for cellular respiration. The blood transports these materials to the muscles.

    Correct Answer
    oxygen
    Explanation
    Muscles require oxygen for cellular respiration, which is the process that generates energy for muscle contraction. Oxygen is necessary for the breakdown of glucose, a type of sugar, in the muscle cells to produce ATP (adenosine triphosphate), the molecule that provides energy for various cellular activities. The blood carries oxygen from the lungs to the muscles, where it is used in cellular respiration.

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  • 7. 

    The main waste material from cellular respiration is called ________.

    Correct Answer
    carbon dioxide
    Explanation
    During cellular respiration, glucose is broken down in the presence of oxygen to produce energy in the form of ATP. This process releases carbon dioxide as a waste product. Therefore, carbon dioxide is the main waste material from cellular respiration.

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  • 8. 

    The upper chambers of the heart are known as the left and right ________.

    Correct Answer
    atrium , atria
    Explanation
    The upper chambers of the heart are called atrium and atria. The term "atrium" refers to a single upper chamber, while "atria" is the plural form of atrium, indicating both the left and right upper chambers of the heart.

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  • 9. 

    Which of the follwoing blood vessels come closest to the body's organs for quick diffusion of materials?

    • Arteries

    • Veins

    • Capillaries

    • All of the above

    Correct Answer
    A. Capillaries
    Explanation
    Capillaries are the smallest blood vessels. their walls are one-cell thick for easy diffusion of materials into and out of the blood.

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  • 10. 

    Which of the following blood vessels carries de-oxygenated blood to the lungs?

    • Vena cava

    • Pulmonary vein

    • Aorta

    • Pulmonary artery

    Correct Answer
    A. Pulmonary artery
    Explanation
    The pulmonary artery carries de-oxygenated blood towards the lungs for replenishment.

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  • 11. 

    Blood returns from the body into this chamber of the heart.

    • Left atrium

    • Right ventricle

    • Left ventricle

    • Right atrium

    Correct Answer
    A. Right atrium
    Explanation
    The right side of the heart sends de-oxygenated blood to the lungs to get rid of carbon dioxide and to replenish the blood with oxygen.

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  • 12. 

    The heart is composed of ______ muscle which pumps blood throughout the body, beating approximately 72 times per minute of our lives.

    Correct Answer
    cardiac
    Explanation
    The heart is composed of cardiac muscle which pumps blood throughout the body. Cardiac muscle is a specialized type of muscle found only in the heart. It is responsible for the rhythmic contractions that allow the heart to pump blood and circulate it to all parts of the body. These contractions occur approximately 72 times per minute, providing the necessary blood flow to deliver oxygen and nutrients to the body's tissues and organs.

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  • 13. 

    Oxygentaed blood leaves the heart through the follwoing vessel, to be transported to the rest of the body.

    • Pulmonary artery

    • Pulmonary vein

    • Aorta

    • Vena cava

    Correct Answer
    A. Aorta
    Explanation
    The aorta is the main artery which carries oxygenated blood away from the heart.

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  • 14. 

    The heart is one of the most important _____ in the entire human body.

    Correct Answer
    organs
    Explanation
    The heart is considered one of the most important organs in the entire human body because it plays a vital role in pumping oxygenated blood throughout the body. It is responsible for supplying oxygen and nutrients to all the cells and organs, ensuring their proper functioning. Without the heart, the body would not receive the necessary oxygen and nutrients, leading to organ failure and ultimately death. Thus, the heart is crucial for maintaining overall health and well-being.

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  • 15. 

    The heart contains _______ which allow blood to flow in only one direction through the heart.

    Correct Answer
    valves
    Explanation
    The heart contains valves which allow blood to flow in only one direction through the heart. Valves are thin flaps of tissue that open and close to control the flow of blood. They prevent the backflow of blood and ensure that blood moves forward through the heart chambers and into the blood vessels. The valves in the heart include the tricuspid valve, pulmonary valve, mitral valve, and aortic valve. These valves play a crucial role in maintaining the circulation of blood throughout the body.

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  • Mar 20, 2023
    Quiz Edited by
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  • Jul 12, 2011
    Quiz Created by
    LancerCelestin
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