Practice IB Biology Topic 6.2 the Blood System with authentic exam-style questions for both SL and HL students. This question bank focuses on the exact syllabus content for 6.2 the Blood System and mirrors Paper 1A, 1B, 2 style where relevant.
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Draw a labelled diagram of the human heart showing the attached blood vessels.
Describe the action of the heart in pumping blood.
Nerves connecting the brain and heart contain neurons that control heart rate. Explain how a nerve message passes from one neuron to another neuron.
Label the diagram to show the structure that is involved in digestion of proteins in acid conditions (using the letter A).
Label the diagram to show the structure where most absorption of water to prevent dehydration occurs (using the letter B).
Label the diagram to show the structure where most absorption of nutrients occurs (using the letter C).
Explain how the structure of veins is adapted to their function.
Cells defend the body against pathogens. Outline how some of these cells ingest pathogens in the blood and in body tissues.
Which of the following is transported by the blood?
What occurs as a result of a cut in the skin of a finger?
What is the sequence of events in blood clotting after the platelets have been activated?
