ch structure to perform its specific function.\n\nDraw lines to connect each **sub-cellular structure** to its **key component/contents**.\nThen draw lines to join each of the **key component/contents** to its correct **function** within the cell.\n\n| Sub-cellular structure | Key component/contents | Function |\n| :--- | :--- | :--- |\n| Mitochondria | Phospholipid bilayer | Controls the entry and exit of substances |\n| Chloroplast | Folded inner membrane with enzymes | Absorbs light for photosynthesis |\n| Cell membrane | Thylakoids containing chlorophyll | Releases energy during aerobic respiration |","markscheme":"- Mitochondria connected to Folded inner membrane with enzymes $\\rightarrow$ Releases energy during aerobic respiration B1\n- Chloroplast connected to Thylakoids containing chlorophyll $\\rightarrow$ Absorbs light for photosynthesis B1\n- Cell membrane connected to Phospholipid bilayer $\\rightarrow$ Controls the entry and exit of substances B1","marks":3,"order":0,"markingRubric":null,"explanation":{"methods":[{"id":"match_structures","label":"Match the cell structures","steps":[{"type":"hyper_latex","block":{"nodes":[{"latex":"$$\\htmlData{anchor=mito}{\\color{@sky}{\\text{Mitochondria}}}$"},{"latex":"$$\\htmlData{anchor=mito_contents}{\\color{@orange}{\\text{Folded inner membrane with enzymes}}}$"},{"latex":"$$\\htmlData{anchor=mito_function}{\\color{@green}{\\text{Releases energy during aerobic respiration}}}$"}],"connections":[{"to":"mito_contents","from":"mito","color":"sky","label":"match contents"},{"to":"mito_function","from":"mito_contents","color":"green","label":"match function"}]},"order":0,"title":"Match mitochondria","description":"Connect mitochondria to its folded inner membrane with enzymes, then to aerobic respiration. The complete chain earns (B1)."},{"type":"hyper_latex","block":{"nodes":[{"latex":"$$\\htmlData{anchor=chloro}{\\color{@sky}{\\text{Chloroplast}}}$"},{"latex":"$$\\htmlData{anchor=chloro_contents}{\\color{@orange}{\\text{Thylakoids containing chlorophyll}}}$"},{"latex":"$$\\htmlData{anchor=chloro_function}{\\color{@green}{\\text{Absorbs light for photosynthesis}}}$"}],"connections":[{"to":"chloro_contents","from":"chloro","color":"sky","label":"match contents"},{"to":"chloro_function","from":"chloro_contents","color":"green","label":"match function"}]},"order":1,"title":"Match chloroplast","description":"Connect chloroplast to thylakoids containing chlorophyll, then to absorbing light for photosynthesis. The complete chain earns (B1)."},{"type":"hyper_latex","block":{"nodes":[{"latex":"$$\\htmlData{anchor=membrane}{\\color{@sky}{\\text{Cell membrane}}}$"},{"latex":"$$\\htmlData{anchor=bilayer}{\\color{@orange}{\\text{Phospholipid bilayer}}}$"},{"latex":"$$\\htmlData{anchor=membrane_function}{\\color{@green}{\\text{Controls the entry and exit of substances}}}$"}],"connections":[{"to":"bilayer","from":"membrane","color":"sky","label":"match contents"},{"to":"membrane_function","from":"bilayer","color":"green","label":"match function"}]},"order":2,"title":"Match cell membrane","description":"Connect the cell membrane to its phospholipid bilayer, then to controlling entry and exit of substances. The complete chain earns (B1)."}]}],"generatedAt":"2026-07-21T04:15:43.357Z","modelVersion":"gpt-5.6-terra","explanationVersion":"v3"},"options":[]},{"id":"408276e3-0c89-47cc-a547-7eb0aeaab58a","label":"b","content":"The image shows a micrograph of a mitochondrion.\n\n![A transmission electron micrograph of a mitochondrion.](https://assets.mathsgenie.co.uk/aqa-qb/198eeb02-10a0-4a3c-a45c-5cc1f012c740.png)\n\nDraw the mitochondrion. Your drawing should be a simplified scientific drawing.","markscheme":"- Gives a clear, single-line continuous outline (no sketching or shading) of the outer double membrane B1\n- Draws simplified, recognizable folded internal cristae inside the matrix B1","marks":2,"order":1,"markingRubric":null,"explanation":{"methods":[{"id":"scientific_drawing","label":"Simplified scientific drawi

Cell structures

Question 4

Cell structures Questions

Cell structures

Question 4

Cell structures Questions