Transport in mammals
Transport in mammals — Cambridge International AS & A Level Biology (9700, AS Level, Topic 8).
The circulatory system and blood vesselsSign up
understand why many animals need a heart and circulation (mass transport overcoming diffusion limits) · understand how the structures of capillaries, arteries and veins relate to their functions · know the cardiac cycle (atrial systole, ventricular systole, cardiac diastole) and the structure/operation of the mammalian heart, including major blood vessels (myogenic detail not required at IAS)
Blood, water and tissue fluidSign up
8.1.5: recognise and draw red blood cells, monocytes, neutrophils and lymphocytes from microscope slides, photomicrographs and electron micrographs · 8.1.6: state that water is the main component of blood and tissue fluid, and relate the properties of water (solvent action and high specific heat capacity) to its role in transport in mammals · 8.1.7: state the functions of tissue fluid and describe the formation of tissue fluid in a capillary network (high hydrostatic pressure at the arterial end forcing fluid out, return at the venous end driven by solute/oncotic potential)
Transport of oxygen and carbon dioxideSign up
understand the role of haemoglobin in transporting oxygen and carbon dioxide · understand the oxygen dissociation curve, the Bohr effect, and the significance of the higher oxygen affinity of fetal haemoglobin compared with adult haemoglobin
The heart and the cardiac cycleSign up
understand why many animals need a heart and circulation (mass transport overcoming diffusion limits) · understand how the structures of capillaries, arteries and veins relate to their functions · know the cardiac cycle (atrial systole, ventricular systole, cardiac diastole) and the structure/operation of the mammalian heart, including major blood vessels (myogenic detail not required at IAS)