Aqa A-Level Biology - Topic 3 |111 Questions| With Correct Answers.

Hydrogen carbonate ions in the red blood cells are split in a reaction catalysed by carbonic anhydrase. What is the result of this reaction. {Ans: Hydrogen carbonate ions created and diffuse into the blood plasma, hydrogen ions are produced in red blood cells which then react with the haemoglobin to produce haemoglobinic acid - production of this causes the haemoglobin to unload remaining oxygen - THE BOHR SHIFT}Smaller organisms have a ........... surface area to volume ratio {Ans: Higher}What is COPD? {Ans: Chronic Obstructive Pulmonary Disease}How are monoglycerides and fatty acids absorbed? {Ans: Diffuse directly across epithelial cell membrane}What are micelles? {Ans: Tiny structures formed when monoglycerides and fatty acids stick with the bile salts}Once inside the root, water moves towards the centre and the xylem by which two methods? {Ans: The apoplastic pathway The symplastic pathway}