Advance 1 (Term 3 examinations)

Advance 1 (Term 3 examinations) [TOTAL:80 MARKS]What is an antibody?

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What are antibodies made up of?

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Explain the action of white blood cells - lymphocytes

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Explain the structure and function of arteries and veins. Draw and label

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How many circulation does a human body have?

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What are TISSUE FLUIDS in the human body formed from?

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What are lymph nodes?

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Outline the process involved in the Double pump system in a human heart. You should be able to explain the whole process as a double circulation system.

[10]List the functions of the following:

Atrium

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Ventricle

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Valves

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Why does the heart never gets tired?

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What is a pacemaker?

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A doctor listening to the heartbeat through a stethescope hears two sound, lub-dup lub-dup lup-dup.From your knowledge on how the heart works, suggest how these two sounds are produced.

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A doctor measures the heartbeat of his patient at 72 beats per minute. How long does it take for two consecutive lub sound to be produced?

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What is respiration?

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Write down the word equation for respiration?

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Where does aerobic respiration take place in the human cell?

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Why is anaerobic respiration less efficient than aerobic respiration and what is the name of the toxic product produced during anaerobic respiration?

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Explain the process of breathing in and breathing out. These set of breathing should involve the diaphragm and intercostal muscles.

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How is the amount of air that enters and leaves the lungs measured?

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Label the structure of the heart.

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How does the process of blood clotting happens?

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