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Circulatory System Test - 1

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Circulatory System Test - 1
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  • Question 1
    1 / -0

    The system that transports nutrients, gases, hormones and bodily waste throughout the body is the

    Solution

    To answer this question correctly, the student must understand that the circulatory system performs the functions of transporting nutrients, gases such as O2 and CO2, hormones and bodily waste throughout the body. The main components of the circulatory system are heart, blood and blood vessels.

    The correct answer is D.

    Why alternative A is wrong:

    The muscular system provides movement to the body. Muscles work in pairs to move the limbs and provide mobility to an organism.Therefore, this alternative is incorrect.

    Why alternative B is wrong:

    The skeletal system comprises the entire skeleton which supports the body and protects its vital organs. Therefore, this alternative is incorrect.

    Why alternative C is wrong:

    The nervous system relays electrical signals through the body and directs behaviour and movement. Therefore, this alternative is incorrect.

  • Question 2
    1 / -0

    Use the following information to answer the next question.

    Heartbeat is a sound produced because of the rhythmic contraction and relaxation of the muscles of the heart.

    Which instrument is used by doctors to listen to the heartbeat?

    Solution

    Stethoscope is the instrument used by doctors to listen to the heartbeat of patients. It helps the doctors to determine the condition of the heart of the patients.

  • Question 3
    1 / -0

    Use the following information to answer the next question.

    In an exam, a question appeared as follows:

    Write a short note on X.

    In order to answer this question, the student wrote:

    ‘These are the blood vessels which have thin walls. The blood does not flow with great pressure in them. These are also provided with valves to prevent back flow of blood ...’

    Which of the following statements is correct about X?

    Solution

    The short note about the blood vessel written by the student matches that of a vein. A vein has thin valves because blood flows with lesser pressure. Also, veins have valves to prevent the back flow of blood.

  • Question 4
    1 / -0

    Capillaries are present in tissues. Which of the following statements regarding capillaries is correct?

    Solution

    Arteries divide to form capillaries on reaching the tissues.

  • Question 5
    1 / -0

    Use the following information to answer the next question.

    Different components of blood perform different functions.

    Which component of blood fights the germs entering the body?

    Solution

    White blood cells fight the germs entering the body.

  • Question 6
    1 / -0

    Use the following information to answer the next question.

    After injuring his elbow, Sanjay noticed that the blood stopped oozing out of the inured site and a clot had started to form after some time. 

    Which component of the blood aids in the clotting of blood at the site of injury? 

    Solution

    Platelets are the component of blood that aids in the clotting of blood at the site of injury and prevents excessive bleeding.

  • Question 7
    1 / -0

    Use the following information to answer the next question.

    After injuring his elbow, Sanjay noticed that the blood stopped oozing out of the inured site and a clot had started to form after some time. 

    Which component of the blood aids in the clotting of blood at the site of injury? 

    Solution

    Platelets are the component of blood that aids in the clotting of blood at the site of injury and prevents excessive bleeding.

  • Question 8
    1 / -0

    Use the following information to answer the next question.

    Haemoglobin is a type of pigment present in the _____i_____ that performs the function of transporting ____ii_____ to all the cells of the body.

    The information in which alternative completes the given statement?

    Solution

    Haemoglobin is the red-coloured pigment present in the red blood cells that binds with oxygen and aids in the transportation of oxygen to all the cells of the body.

  • Question 9
    1 / -0

    Use the following information to answer the next question.

    Haemoglobin is a type of pigment present in the _____i_____ that performs the function of transporting ____ii_____ to all the cells of the body.

    The information in which alternative completes the given statement?

    Solution

    Haemoglobin is the red-coloured pigment present in the red blood cells that binds with oxygen and aids in the transportation of oxygen to all the cells of the body.

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