2.59 to 2.69 - Human Transport (Blood, Immunity, and Circulatory System) (IGCSE Biology Edexcel 9-1)

IGCSE Biology 9-1

2.59 describe the composition of the blood: red blood cells, white blood cells, platelets and plasma
2.60 understand the role of plasma in the transport of carbon dioxide, digested food, urea, hormones and heat energy
2.61 understand how adaptations of red blood cells make them suitable for the transport of
oxygen, including shape, the absence of a nucleus and the presence of haemoglobin
2.62 understand how the immune system responds to disease using white blood cells, illustrated by phagocytes ingesting pathogens and lymphocytes releasing antibodies specific to the pathogen
2.63B understand how vaccination results in the manufacture of memory cells, which enable future antibody production to the pathogen to occur sooner, faster and in greater quantity
2.64B understand how platelets are involved in blood clotting, which prevents blood loss and the entry of micro-organisms
2.65 describe the structure of the heart and how it functions
2.66 explain how the heart rate changes during exercise and under the influence of adrenaline
2.67 understand how factors may increase the risk of developing coronary heart disease
2.68 understand how the structure of arteries, veins and capillaries relate to their function
2.69 understand the general structure of the circulation system, including the blood
vessels to and from the heart and lungs, liver and kidneys

Lessons covering aspects of human transport, including blood components, adaptations of red blood cells, immune response, vaccination, cardiac structure and cycle (with heart dissection), CHD, valves, and systemic circulation.

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