This powerpoint presentation covers Topic 6.2 (Transport System) in the IB Biology curriculum. Each slide is labelled with the specific learning objective and animation/video links are provided in the slide notes.
The slides are formatted to print well for handouts or revision and I can provide a pdf version upon request.
As always, please let me know if you have any suggestions for improvements. These are always a work in progress!
**IB Biology Learning Objectives
6.2.1 – Draw and label a diagram of the heart showing the four chambers, associated blood vessels, valves and the route of blood through the heart.
6.2.2 – State that the coronary arteries supply heart muscle with oxygen and nutrients.
6.2.3 – Explain the action of the heart in terms of collecting blood, pumping blood, and opening and closing of valves.
6.2.4 – Outline the control of the heartbeat in terms of myogenic muscle contraction, the role of the pacemaker, nerves, the medulla of the brain and epinephrine (adrenaline).
6.2.5 – Explain the relationship between the structure and function of arteries, capillaries and veins.
6.2.6 – State that blood is composed of plasma, erythrocytes, leucocytes (phagocytes and lymphocytes) and platelets.
6.2.7 – State the following are transported by the blood: nutrients, oxygen, carbon dioxide, hormones, antibodies, urea and heat.