AQA GCSE Biology Paper 1 100% Correct Answers Verified questions 2023/2024

What does a nucleus do? - answer It contains genetic material and controls the activities of the cell What does cytoplasm do? - answer It's a gel-like substance where most of the chemical reactions happen. It contains enzymes that control these chemical reactions What does a cell membrane do? - answer It holds the cell together and controls what goes in and out What do mitochondria do? - answer These are where most of the reactions for aerobic respiration occur. Respiration transfers energy that the cell needs to work What do ribosomes do? - answer This is where protein synthesis takes place - where proteins are made in the cell What do cell walls do? - answer They are made of cellulose and they support and strengthen the cell What does a vacuole do? - answer It contains cell sap and helps maintain the shape of the cell