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[
{
"slide": 1,
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"text_description": "Meet the Cell\nWhere life’s story begins at microscopic scale.",
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{
"slide": 2,
"fragments": [
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"fragment_index": -1,
"text_description": "What is a Cell?",
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"fragment_index": 1,
"text_description": "Cell",
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{
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"text_description": "A cell is the basic structural and functional unit of life, capable of energy release, growth and self-reproduction.\nSome organisms are unicellular; others are multicellular, yet each relies on its cells for structure and function. Can you name a unicellular organism?",
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{
"slide": 3,
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"text_description": "Cell Theory",
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"fragment_index": 1,
"text_description": "See how three scientists built the three pillars of modern cell theory.",
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"text_description": "1\nMatthias Schleiden (1838)\nStudied plants and concluded every plant is composed of cells.",
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{
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"text_description": "2\nTheodor Schwann (1839)\nShowed animals are also cellular, making the cell the universal unit of life.",
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"fragment_index": 4,
"text_description": "3\nRudolf Virchow (1855)\nProposed “Omnis cellula e cellula” — new cells come only from existing cells.",
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{
"fragment_index": 5,
"text_description": "Pro Tip:\nRemember: All organisms are cellular, the cell is life’s unit, and cells arise only from cells.",
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}
]
},
{
"slide": 4,
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"fragment_index": -1,
"text_description": "Shapes Galore",
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"fragment_index": 1,
"text_description": "Varied cell shapes: RBC, nerve cell, epithelial",
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"text_description": "Shape mirrors duty\nCells adopt specific forms that match their roles.\nBiconcave red blood cells bend easily and expose more surface for gas exchange.\nA nerve cell’s long, branched axon carries impulses swiftly over distance.\nColumnar or flat epithelial cells create tight sheets for protection or absorption.",
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"text_description": "Key Points:\nRBC: biconcave disc → high surface area, easy capillary passage.\nNerve cell: long & branched → rapid signal conduction.\nEpithelial cell: columnar/flat sheet → cover, protect, absorb.",
"image_description": ""
}
]
},
{
"slide": 5,
"fragments": [
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"fragment_index": -1,
"text_description": "Sizing Things Up",
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"fragment_index": 1,
"text_description": "",
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"text_description": "Relative Scale: Virus → PPLO → Bacterium → Human Cell\nA virus measures about 20–300 nm; even the tiniest PPLO (mycoplasma) is roughly 300 nm.\nTypical bacteria are 1–5 µm, whereas a eukaryotic cell often spans 20 µm or more.",
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"text_description": "Key Points:\nVirus: 0.02–0.3 µm\nPPLO (Mycoplasma): ~0.3 µm\nBacterium: 1–5 µm\nEukaryotic cell: 20–100 µm",
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]
},
{
"slide": 6,
"fragments": [
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"text_description": "Match Shape & Job\nDrag each cell icon to the function whose task relies on that cell’s distinctive shape.\nCheck Answers\nResults\n// Drag and drop functionality\n const draggableItems = document.querySelectorAll('.draggable-item');\n const dropZones = document.querySelectorAll('.drop-zone');\n const checkAnswersBtn = document.getElementById('checkAnswersBtn');\n const feedbackArea = document.getElementById('feedbackArea');\n const feedbackContent = document.getElementById('feedbackContent');\n\n draggableItems.forEach(item => {\n item.addEventListener('dragstart', handleDragStart);\n item.addEventListener('dragend', handleDragEnd);\n });\n\n dropZones.forEach(zone => {\n zone.addEventListener('dragover', handleDragOver);\n zone.addEventListener('drop', handleDrop);\n zone.addEventListener('dragenter', handleDragEnter);\n zone.addEventListener('dragleave', handleDragLeave);\n });\n\n function handleDragStart(e) {\n e.target.classList.add('opacity-50');\n e.dataTransfer.setData('text/plain', e.target.dataset.id);\n }\n\n function handleDragEnd(e) {\n e.target.classList.remove('opacity-50');\n }\n\n function handleDragOver(e) {\n e.preventDefault();\n }\n\n function handleDragEnter(e) {\n e.preventDefault();\n e.target.closest('.drop-zone').classList.add('border-green-500', 'bg-green-50');\n }\n\n function handleDragLeave(e) {\n e.target.closest('.drop-zone').classList.remove('border-green-500', 'bg-green-50');\n }\n\n function handleDrop(e) {\n e.preventDefault();\n const dropZone = e.target.closest('.drop-zone');\n dropZone.classList.remove('border-green-500', 'bg-green-50');\n\n const itemId = e.dataTransfer.getData('text/plain');\n const draggedItem = document.querySelector(`[data-id=\"${itemId}\"]`);\n\n if (draggedItem && dropZone) {\n dropZone.appendChild(draggedItem);\n dropZone.querySelector('.text-center').style.display = 'none';\n }\n }\n\n // Simple check answers logic (match by data-id and drop-zone data-id)\n checkAnswersBtn.addEventListener('click', () => {\n let correct = 0;\n draggableItems.forEach(item => {\n const parentZone = item.closest('.drop-zone');\n if (parentZone && item.dataset.category === parentZone.dataset.id) {\n correct += 1;\n }\n });\n feedbackArea.classList.remove('hidden');\n feedbackContent.innerHTML = `<p class=\"text-xl ${correct === 4 ? 'text-green-600' : 'text-red-600'}\">You matched ${correct}/4 correctly.</p>`;\n });",
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"fragment_index": 1,
"text_description": "Draggable Items\nRed Blood Cell (RBC)\nNerve Cell\nWhite Blood Cell (WBC)\nColumnar Epithelial Cell",
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{
"fragment_index": 2,
"text_description": "Drop Zones\nGas Transport\nSignal Transmission\nBody Defense\nAbsorption",
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{
"fragment_index": 3,
"text_description": "Tip:\nConsider surface area, flexibility, or long extensions when pairing shape with function.",
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}
]
},
{
"slide": 7,
"fragments": [
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"fragment_index": -1,
"text_description": "Prokaryote vs Eukaryote",
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"text_description": "Prokaryotic Cell\nNucleus – DNA lies in nucleoid; no nuclear membrane.\nOrganelles – lacks membrane-bound ones; has 70 S ribosomes only.\nSize – tiny, about 0.1–5 µm.",
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{
"fragment_index": 2,
"text_description": "Eukaryotic Cell\nNucleus – true nucleus with double envelope & nucleolus.\nOrganelles – many membrane-bound types (mitochondria, ER, Golgi).\nSize – larger, usually 10–100 µm.",
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"text_description": "Key Similarities\nBoth have a plasma membrane enclosing cytoplasm.\nDNA and ribosomes present in each cell type.\nCarry out essential processes like growth & replication.",
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]
},
{
"slide": 8,
"fragments": [
{
"fragment_index": -1,
"text_description": "Plant & Animal Cells",
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{
"fragment_index": 1,
"text_description": "Plant vs Animal cell diagrams",
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"text_description": "Spot the unique parts\nPlant and animal cells share the same core organelles for life activities.\nFocus on the structures that make each cell type distinct.\nKey Points:\nPlant cell: rigid cellulose\ncell wall\noutside the membrane.\nPlant cell: single large central\nvacuole\nfor storage & turgor.\nAnimal cell: lacks cell wall, has small vacuoles and contains\ncentrioles\nfor cell division.\nAll other organelles are common to both cell types.",
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},
{
"slide": 9,
"fragments": [
{
"fragment_index": -1,
"text_description": "Fluid Mosaic Membrane",
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{
"fragment_index": 1,
"text_description": "Fluid mosaic model (simplified)",
"image_description": "https://asset.sparkl.ac/pb/sparkl-vector-images/img_ncert/rdkGYKhtSwCHCW6YM5I0SxFAB9D1oubruIbu30yy.png"
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"text_description": "A Lipid-Protein Sea\nPhospholipids form a double layer; hydrophobic tails meet inside, heads face water, letting the sheet stay fluid.\nProteins float in this layer, moving laterally to relay signals and transport molecules.\nKey Points:\nCholesterol slots between phospholipid tails, keeping fluidity steady across temperatures.\nMembrane proteins act as channels, carriers, enzymes and receptors.\nLateral movement of lipids and proteins lets the plasma membrane flex and self-heal.",
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]
},
{
"slide": 10,
"fragments": []
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{
"slide": 11,
"fragments": [
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"fragment_index": -1,
"text_description": "Endoplasmic Reticulum\nRough ER vs Smooth ER\nEndoplasmic reticulum (ER) forms a continuous membrane network from the nucleus into the cytoplasm.\nIts rough and smooth domains look similar but perform distinct cellular jobs.",
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{
"fragment_index": 1,
"text_description": "RER (ribosome dotted) and SER network inside a cell.",
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"text_description": "Key Points:\nRough ER: Ribosome-studded cisternae; synthesises secretory & membrane proteins, then sends them to the Golgi.\nSmooth ER: Ribosome-free tubules; produces lipids, phospholipids & steroids, detoxifies drugs, stores Ca²⁺.",
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}
]
},
{
"slide": 12,
"fragments": [
{
"fragment_index": -1,
"text_description": "Golgi Packaging Hub",
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},
{
"fragment_index": 1,
"text_description": "Stacked cisternae of the Golgi apparatus",
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"text_description": "Cis-to-Trans Assembly Line\nCis-face, pressed against the ER, receives fresh proteins and lipids.\nMoving cisternae add or trim sugars, creating the final molecular labels.\nTrans-face packs the labeled cargo into vesicles that head to membranes or outside.\nKey Points:\nCis-face = receiving dock\nTrans-face = shipping desk\nVesicles = delivery trucks",
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}
]
},
{
"slide": 13,
"fragments": [
{
"fragment_index": -1,
"text_description": "Mitochondrion",
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"fragment_index": 1,
"text_description": "Mitochondrion\nDouble-membrane organelle that makes ATP, earning the name “power house” of the cell.\nKey Characteristics:\nCristae – inner membrane folds that boost enzyme-loaded surface area.\nMatrix – central fluid containing DNA, ribosomes and Krebs-cycle enzymes.\nATP output – oxidative phosphorylation here supplies most cellular energy.",
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}
]
},
{
"slide": 14,
"fragments": [
{
"fragment_index": -1,
"text_description": "Chloroplast Factory",
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{
"fragment_index": 1,
"text_description": "Grana stacks & stroma in a chloroplast",
"image_description": "https://asset.sparkl.ac/pb/sparkl-vector-images/img_ncert/reTU416zJbyScBJBVCTFC1AIZXzsz6FfdxlAQ8aE.png"
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"text_description": "Grana & Stroma Roles\nLight reaction happens on grana—flattened thylakoid stacks.\nChlorophyll here captures sunlight to form \\( \\text{ATP} \\) and \\( \\text{NADPH} \\).\nDark reaction (Calvin cycle) unfolds in the surrounding stroma.\nStroma enzymes use CO₂ plus the ATP & NADPH to build glucose.",
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"fragment_index": 3,
"text_description": "Key Points:\nGrana = site of light reaction, energy capture.\nStroma = site of dark reaction, carbon fixation.\nStructure keeps the two phases organised and efficient.",
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}
]
},
{
"slide": 15,
"fragments": [
{
"fragment_index": -1,
"text_description": "Ribosome",
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{
"fragment_index": 2,
"text_description": "Ribosome\nUniversal molecular factory: two subunits clamp mRNA and catalyse peptide-bond formation, converting codons into a growing polypeptide during translation.",
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{
"fragment_index": 3,
"text_description": "Key Characteristics:\n70S (50S + 30S) in prokaryotes & organelles; 80S (60S + 40S) in eukaryotic cytoplasm.\nSmall subunit reads mRNA; large subunit forms peptide bonds via rRNA peptidyl-transferase.\nMultiple ribosomes can form a polyribosome for rapid protein assembly.",
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{
"fragment_index": 4,
"text_description": "Example:\nBacterial 70S ribosomes assemble enzymes; human 80S ribosomes synthesise haemoglobin.",
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}
]
},
{
"slide": 16,
"fragments": [
{
"fragment_index": -1,
"text_description": "Key Takeaways\nThank You!\nWe hope you found this lesson informative and engaging.",
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},
{
"fragment_index": 1,
"text_description": "Cell theory: all life is cellular, and cells arise only from existing cells.",
"image_description": ""
},
{
"fragment_index": 2,
"text_description": "Prokaryotes are small and simple; eukaryotes are larger and compartmentalised.",
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},
{
"fragment_index": 3,
"text_description": "Organelles are specialised workstations—mitochondria make ATP, ER and Golgi process molecules.",
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},
{
"fragment_index": 4,
"text_description": "Fluid plasma membrane regulates material exchange and enables cell-to-cell communication.",
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},
{
"fragment_index": 5,
"text_description": "Next Steps\nPractise labeling organelles on diagrams and link each to its specific function.",
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}
]
}
]