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AQA 7402 2 W MS Jun17 - A-Level CGP AQA Biology Textbook

Q1.The diagram represents part of the human digestive system. The organs are labelled A−F. (a) Give the letter of the organ that produces amylase. (1) (b) Give the letter of the organ that produces maltase. (1) (c) Maltose is hydrolysed by the enzyme maltase. Explain why maltase catalyses only this reaction. ..............................................................................................................

Solvent - A liquid substance capable of dissolving other substances Dipolar - A molecule that has a partial - on one side and a partial + on the other Cohesive - Sticking together Aerobic respiration - Respiration that requires oxygen and glucose Multicellular organism - Organism made up of many cells Mass transport system - A system that carried substances from specialised exchange organs to cells Circulatory system - A system that carries oxygen and nutrients around th...

AqA A-level BIOLOGY Paper 1 7402/1 JUNE 2022 QUESTION PAPER

Biology A-Level AQA Keywords - Unit 4 Gene - Section of DNA on a chromosome that controls a feature by coding for formation of one or more specific polypeptides or a functional RNA (including rRNA and tRNA). Chromosome - A thread like structure made of protein and DNA by which hereditary information is physically passed from one generation to the next. Chromatin - The material that makes up chromosomes. It consists of DNA and the protein histone. Autosome - A chromosome which is not ...