Aqa A-Level Biology - Topic 3 Study Guide Graded A+

What are micelles? {Ans: Tiny structures formed when monoglycerides and fatty acids stick with the bile salts}How does light intensity affect the rate of transpiration? {Ans: more light, greater rate of transpiration ( during hours of darkness stomata is closed)}How does air movement affect the rate of transpiration? {Ans: In high wind transpiration occurs faster because if the air is moving the air above the leaf will not become saturated with water molecules instead the water molecule will blow away}What is the pulmonary ventilation? {Ans: The amount of air that is moved into the lungs in one minute}What is asthma? {Ans: A condition caused by inflammation of the bronchioles. The inflammation irritates muscles aro7nd the airways causing them to narrow and constrict}What are bile salts? {Ans: Produced by the liver and emulsify Lipids causing them to form small droplets}