Pearson Edexcel As/a-Level Biology Study Guide Questions And Correct Answers

Enzyme {Ans: protein that acts as a biological catalyst}Endocytosis {Ans: the process by moving large molecules through vesicles}monounsaturated fats {Ans: one carbon-carbon double bond}passive transport {Ans: the movement of substances across a cell membrane without the use of energy by the cell}arterial diastole {Ans: relaxation of arteries}antihypertensive {Ans: a medication administered to lower blood pressure}Veins {Ans: Blood vessels that carry blood back to the heart}Causation {Ans: the action of causing something}Platelets {Ans: blood clotting}surface area to volume ratio {Ans: Ratio of a cell's outside area to its internal volume.}Myoglobin {Ans: An oxygen-storing, pigmented protein in muscle cells.}CVDs {Ans: Cardiovascular disease (CVD) is a disease of the heart and blood vessels CVD claims one life every 36 seconds—about 2400 Americans every day -atherosclerosis -hypertension -angina pectoris -arrhythmia -heart failure -stroke -congenital heart defects}ACE inhibitors {Ans: renal damage}Glycogen {Ans: storage form of glucose in liver and muscle}hydrogen bonds {Ans: Very weak bonds; occurs when a hydrogen atom in one molecule is attracted to the electrostatic atom in another molecule}side effects {Ans: reactions to medicine other than the one intended}BMI formula {Ans: weight/height^2}right atrium {Ans: