BILD 2 Lecture Notes - Lecture 11: Phloem, Xylem, Transpiration
Document Summary
The giraffe or the tree: both have powerful pumps, giraffe moves liquids faster, tree moves liquids higher. Sugar needs to be transported to the rest of the tree: liquid moves under pressure, pressure is force on a surface per unit area, liquid goes from areas of high pressure to areas of low pressure. Question: people with untreated diabetes have high levels of sugar in their urine. Why: through osmosis, water follows high concentration of sugar, so water leaves with high levels of sugar in urine. Pathway of blood in the heart: vena cava -> right atrium -> right ventricle -> pulmonary artery -> lungs -> pulmonary vein -> left atrium -> left ventricle -> aorta -> body -> vena cava. In tetralogy of fallot, there is a hole between the 2 ventricles. Systolic pressure is higher: when referring to systolic and diastolic pressure, that is the blood pressure during ventricular systole and diastole.
