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    Chapter 1 Transport Form 5

    Uploaded by

    nanarahmannaim
    The document contains diagrams and questions about blood vessels (X and Y), blood clotting, the circulatory system of an organism (P), and the lymphatic system. Diagram 1.1 shows blood vessels X and Y, with Y having a thicker wall to withstand higher blood pressure. X has valves to regulate blood flow. High cholesterol can cause plaque buildup in Y, leading to atherosclerosis and health risks. Diagram 1.2 shows blood clotting in a cut finger to stop bleeding through a coagulation process. Clotting is important to prevent blood loss from injuries. Diagram 2 depicts the closed double circulatory system of organism P, with the lungs supplying oxygen to body cells via circulation

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    © All Rights Reserved
    Download as DOC, PDF, TXT or read online from Scribd

    Chapter 1 Transport Form 5

    Uploaded by

    nanarahmannaim
    25 views4 pages
    The document contains diagrams and questions about blood vessels (X and Y), blood clotting, the circulatory system of an organism (P), and the lymphatic system. Diagram 1.1 shows blood vessels X and Y, with Y having a thicker wall to withstand higher blood pressure. X has valves to regulate blood flow. High cholesterol can cause plaque buildup in Y, leading to atherosclerosis and health risks. Diagram 1.2 shows blood clotting in a cut finger to stop bleeding through a coagulation process. Clotting is important to prevent blood loss from injuries. Diagram 2 depicts the closed double circulatory system of organism P, with the lungs supplying oxygen to body cells via circulation

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    biology

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    The document contains diagrams and questions about blood vessels (X and Y), blood clotting, the circulatory system of an organism (P), and the lymphatic system. Diagram 1.1 shows blood vessels X and Y, with Y having a thicker wall to withstand higher blood pressure. X has valves to regulate blood flow. High cholesterol can cause plaque buildup in Y, leading to atherosclerosis and health risks. Diagram 1.2 shows blood clotting in a cut finger to stop bleeding through a coagulation process. Clotting is important to prevent blood loss from injuries. Diagram 2 depicts the closed double circulatory system of organism P, with the lungs supplying oxygen to body cells via circulation

    Copyright:

    © All Rights Reserved
    Download as DOC, PDF, TXT or read online from Scribd
    Download as doc, pdf, or txt
    25 views4 pages

    Chapter 1 Transport Form 5

    Uploaded by

    nanarahmannaim
    The document contains diagrams and questions about blood vessels (X and Y), blood clotting, the circulatory system of an organism (P), and the lymphatic system. Diagram 1.1 shows blood vessels X and Y, with Y having a thicker wall to withstand higher blood pressure. X has valves to regulate blood flow. High cholesterol can cause plaque buildup in Y, leading to atherosclerosis and health risks. Diagram 1.2 shows blood clotting in a cut finger to stop bleeding through a coagulation process. Clotting is important to prevent blood loss from injuries. Diagram 2 depicts the closed double circulatory system of organism P, with the lungs supplying oxygen to body cells via circulation

    Copyright:

    © All Rights Reserved
    Download as DOC, PDF, TXT or read online from Scribd
    Download as doc, pdf, or txt
    of 4

    CHAPTER 1 TRANSPORT FORM 5

    SECTION A

    1. Diagram 1.1 shows two types of blood vessels X and Y.

    Diagram 1.1

    (a)(i) Name structure X and Y

    X : _________________________________________

    Y : _________________________________________
    (2 marks)

    (ii) Explain why blood vessel Y has thicker wall than blood vessel X.

    ______________________________________________________________________________

    ______________________________________________________________________________
    (1 mark)

    (iii) Explain why blood vessel X has valve.

    _______________________________________________________________________________

    _______________________________________________________________________________
    (1 mark)

    (b) High cholesterol level in blood causes the cholesterol to be deposited and form plaque in blood vessel
    Y. Name the disease caused by deposition of cholesterol and explain the effects towards to health of
    an individual.

    _________________________________________________________________________________

    __________________________________________________________________________________

    __________________________________________________________________________________

    __________________________________________________________________________________
    (3 marks)
    (c) Diagram 1.2 (a) shows a person with a cut on his finger. Diagram 1.2 (b) shows what had happen inside the
    blood vessel.

    Diagram 1.2 (a) and Diagram 1.2 (b)

    (i) The cut on the person stops by clotting. Explain the mechanism of blood clotting that occurs on the
    person’s finger.

    __________________________________________________________________________________

    __________________________________________________________________________________

    __________________________________________________________________________________
    (3 marks)
    (ii) Explain 2 importance of blood clotting.

    __________________________________________________________________________________

    __________________________________________________________________________________

    __________________________________________________________________________________
    (2 marks)

    2. Diagram 2 shows a circulatory system of an organism, P.

    Diagram 2

    (a)(i) Name the type of circulatory pathway X and Y.

    X : _________________________________________

    Y : _________________________________________
    (2 marks)
    (ii) By using arrows ( ) , show the direction of blood flow in X and Y.

    (b) Explain why the wall of left ventricle is thickest in the heart.

    __________________________________________________________________________________

    __________________________________________________________________________________

    __________________________________________________________________________________
    (2 marks)

    (c) The lungs play an important role in supplying oxygen to the body cells of organism P. Explain how.

    _______________________________________________________________________________

    _______________________________________________________________________________
    (1 mark)

    (d) Circulatory system of a frog is similar to a human but rate of oxygen supplied to the body cells is
    lower. Give your opinion.

    __________________________________________________________________________________

    __________________________________________________________________________________

    __________________________________________________________________________________
    (3 marks)
    3. Diagram 3 shows part of the circulatory system and lymphatic system

    (a)(i) Name structure X.

    _______________________________________________________________________________
    (1 mark)

    (ii) State function X.


    _______________________________________________________________________________

    _______________________________________________________________________________
    (1 mark)

    (b)(i) Name fluid Y

    _______________________________________________________________________________
    (1 mark)

    (ii) Fluid Y is part of blood. Explain how fluid Y formed from blood.

    __________________________________________________________________________________

    __________________________________________________________________________________

    __________________________________________________________________________________
    (2 marks)

    (iii) State the differences between fluid Y and blood.

    __________________________________________________________________________________

    __________________________________________________________________________________

    __________________________________________________________________________________
    (2 marks)

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