der":3,"title":"Tick the cell wall","content":"Tick **possess a cell wall made of peptidoglycan (murein)**. Peptidoglycan, also called murein, is the material in a bacterial cell wall. This earns one mark.","highlights":[{"text":"possess a cell wall made of peptidoglycan (murein)","index":1,"location":"option"}]},{"type":"text","order":4,"title":"Tick insulin production","content":"Tick **can be genetically engineered to produce insulin for medical use**. A human insulin gene can be inserted into bacteria, which then make insulin. This earns the second mark.","highlights":[{"text":"can be genetically engineered to produce insulin for medical use","index":3,"location":"option"}]},{"type":"text","order":5,"title":"Check your two ticks","content":"Your two ticks are the **peptidoglycan cell wall** statement and the **genetically engineered insulin** statement. Tick no others: each extra incorrect tick loses one mark, down to a minimum of zero.","highlights":[{"text":"**two** statements that are correct for bacteria","location":"specification"}]}]}],"generatedAt":"2026-07-21T04:30:15.994Z","modelVersion":"gpt-5.6-terra","explanationVersion":"v3"},"options":[]}],"options":[],"explanation":null,"firstAttemptFullMarks":null},{"id":"31969c02-26d8-4b8a-8268-3b7f7cf3a5a3","revisionId":"9a935c97-0198-4ef3-9d6e-9d19849dc5c9","questionNumber":null,"questionType":"LA","specification":"Eukaryotic cells contain specialized organelles that carry out specific cellular functions.","difficulty":7,"difficultyBand":"medium","totalMarks":5,"sourceTitle":null,"calculatorUse":null,"parts":[{"id":"32ccd346-43ee-4bda-b889-4cd4a720e8d9","label":null,"content":"Draw a straight line from each cell structure to its correct function. The first has been done for you.\n\n![Eukaryotic Cell Structures and Functions](https://assets.mathsgenie.co.uk/aqa-qb/1654ce91-c804-442d-8b1d-f2582b4e8366.png)","markscheme":"- **Lysosome** matches with **contains hydrolytic enzymes to break down waste materials** B1\n- **Rough endoplasmic reticulum (RER)** matches with **folds and processes proteins made on ribosomes** B1\n- **Nucleolus** matches with **site of ribosome synthesis and assembly** B1\n- **Smooth endoplasmic reticulum (SER)** matches with **synthesises and processes lipids and carbohydrates** B1\n- **Mitochondrion** matches with **site of aerobic respiration to produce ATP** B1","marks":5,"order":0,"markingRubric":null,"explanation":{"methods":[{"id":"organelle_function_matching","label":"Match organelles to functions","steps":[{"type":"text","order":0,"title":"Use the completed example","content":"The completed line shows that the **Golgi apparatus** *modifies and packages proteins into vesicles*. Leave that pairing alone, then match each of the five remaining structures to a different unused function.","highlights":[{"text":"The first has been done for you.","location":"specification"}]},{"type":"text","order":1,"title":"Match the lysosome","content":"A lysosome contains hydrolytic enzymes. These are enzymes that break down waste materials in the cell, so draw the line to **contains hydrolytic enzymes to break down waste materials**.\n\nThis correct link earns **B1**."},{"type":"text","order":2,"title":"Match the RER","content":"The rough endoplasmic reticulum has ribosomes attached, so it deals with the proteins those ribosomes make. Draw the line to **folds and processes proteins made on ribosomes**.\n\nThis correct link earns **B1**."},{"type":"text","order":3,"title":"Match the nucleolus","content":"The nucleolus is the part of the nucleus where ribosomes are made and put together. Draw the line to **site of ribosome synthesis and assembly**.\n\nThis correct link earns **B1**."},{"type":"text","order":4,"title":"Match the SER","content":"Smooth endoplasmic reticulum has no ribosomes, so it is associated with making and processing lipids and carbohydrates. Draw the line to **synthesises and processes lipids and carbohydrates**.\n\nThis correct link earns **B1**."},{"type":"text",

Cell structure

Question 2

Cell structure Questions

Cell structure

Question 2

Cell structure Questions