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[
{
"slide": 1,
"fragments": [
{
"fragment_index": -1,
"text_description": "Cell: Life’s Building Block\nWhere microscopic architecture powers every form of life.",
"image_description": ""
}
]
},
{
"slide": 2,
"fragments": [
{
"fragment_index": -1,
"text_description": "What is a Cell?",
"image_description": ""
},
{
"fragment_index": 1,
"text_description": "Cell",
"image_description": ""
},
{
"fragment_index": 2,
"text_description": "Smallest structural and functional unit that exists independently and performs all vital life functions.",
"image_description": ""
},
{
"fragment_index": 3,
"text_description": "Organisms may be unicellular—one cell handles all tasks—or multicellular, where many specialised cells cooperate.\nCan something lacking all life functions still be called a cell? Explain.",
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}
]
},
{
"slide": 3,
"fragments": [
{
"fragment_index": -1,
"text_description": "Birth of Cell Theory\nTrace the journey from early microscopes to Virchow’s dictum,\nOmnis cellula e cellula\n— every cell comes from a pre-existing cell.",
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},
{
"fragment_index": 1,
"text_description": "1\n17th-Century Microscopy\nHooke names “cells” in cork (1665); Leeuwenhoek observes living cells, launching cell history.",
"image_description": ""
},
{
"fragment_index": 2,
"text_description": "2\nSchleiden & Schwann (1838–39)\nThey propose all plants and animals are built of cells, unifying biology under one principle.",
"image_description": ""
},
{
"fragment_index": 3,
"text_description": "3\nVirchow (1855)\nObserves cell division and states\nOmnis cellula e cellula\n, cementing continuity in modern cell theory.",
"image_description": ""
},
{
"fragment_index": 4,
"text_description": "Pro Tip:\nRemember the sequence: Hooke → Schleiden & Schwann → Virchow to recount the birth of modern cell theory.",
"image_description": ""
}
]
},
{
"slide": 4,
"fragments": [
{
"fragment_index": -1,
"text_description": "Shapes Tell Stories",
"image_description": ""
},
{
"fragment_index": 1,
"text_description": "Neuron & RBC illustrate how shape serves function.",
"image_description": "https://asset.sparkl.ac/pb/sparkl-vector-images/img_ncert/4ehrbNoOyLW3DryYfPZwpn6FgOL2LtaOJYVeTxar.png"
},
{
"fragment_index": 2,
"text_description": "Form Mirrors Function\nCell shapes evolve to match specific tasks, linking structure with performance.\nKey Points:\nNeuron: Long, branched shape carries signals swiftly across the body.\nRBC: Thin biconcave disc increases surface area for rapid oxygen exchange.\nMuscle fibre: Cylindrical length lets contractile proteins slide for movement.\nGuard cell: Kidney shape opens or closes stomata to regulate gas flow.",
"image_description": ""
}
]
},
{
"slide": 5,
"fragments": [
{
"fragment_index": -1,
"text_description": "Sizing Up Cells",
"image_description": ""
},
{
"fragment_index": 1,
"text_description": "Relative sizes (not to scale)",
"image_description": "https://asset.sparkl.ac/pb/sparkl-vector-images/img_ncert/EUrtx6fFV7LgBhHTgpS57zCvDRB9qSmsXnD4W4ce.png"
},
{
"fragment_index": 2,
"text_description": "Cell dimensions in μm\n1 μm (micrometre) = 10⁻⁶ m; this unit sets the scale for cell biology.\nComparing sizes helps explain how surface area limits functions like nutrient uptake.\nKey Points:\nViruses: 0.02 – 0.3 μm, visible only with an electron microscope.\nBacteria: 1 – 5 μm; typical prokaryotic size, light-microscope range.\nEukaryotic cells: 10 – 20 μm; some specialised cells reach 100 μm.",
"image_description": ""
}
]
},
{
"slide": 6,
"fragments": [
{
"fragment_index": -1,
"text_description": "Plant vs Animal Cell",
"image_description": ""
},
{
"fragment_index": 1,
"text_description": "Plant Cell\nRigid cellulose cell wall\nChloroplasts capture light energy\nLarge central vacuole maintains turgor\nPlasmodesmata link adjacent cells",
"image_description": ""
},
{
"fragment_index": 2,
"text_description": "Animal Cell\nNo cell wall; flexible membrane\nCentrioles guide spindle formation\nSmall, transient vacuoles\nLysosomes digest cellular debris",
"image_description": ""
},
{
"fragment_index": 3,
"text_description": "Key Similarities\nEukaryotic with true nucleus\nPlasma membrane controls exchange\nMitochondria produce ATP\nRibosomes build proteins\nER & Golgi process biomolecules\nCytoplasm suspends organelles\nWhich features are unique, and which reveal their common ancestry?",
"image_description": ""
}
]
},
{
"slide": 7,
"fragments": [
{
"fragment_index": -1,
"text_description": "Fluid Mosaic Membrane",
"image_description": ""
},
{
"fragment_index": 1,
"text_description": "Fluid mosaic model (Singer & Nicolson, 1972)",
"image_description": "https://asset.sparkl.ac/pb/sparkl-vector-images/img_ncert/lb7ofuICZpBYSABz7EpccsDM1SvDOugMDeZukHIX.png"
},
{
"fragment_index": 2,
"text_description": "Lipids drift, proteins skate\nThe plasma membrane is a fluid phospholipid sea that heals and flows.\nProteins move within this lipid matrix, creating the ever-changing mosaic.\nKey Points:\nPhospholipids + cholesterol give flexibility and selective permeability.\nProteins drift laterally but rarely flip between leaflets.\nDynamic membrane explains cell growth, endocytosis, and self-repair.",
"image_description": ""
}
]
},
{
"slide": 8,
"fragments": [
{
"fragment_index": 1,
"text_description": "Label the Membrane",
"image_description": ""
},
{
"fragment_index": 2,
"text_description": "Drag each label onto the correct feature of the plasma membrane diagram to show you can identify its components.",
"image_description": ""
},
{
"fragment_index": 3,
"text_description": "Draggable Items",
"image_description": ""
},
{
"fragment_index": 4,
"text_description": "Phospholipid head",
"image_description": ""
},
{
"fragment_index": 5,
"text_description": "Hydrophobic tail",
"image_description": ""
},
{
"fragment_index": 6,
"text_description": "Integral protein",
"image_description": ""
},
{
"fragment_index": 7,
"text_description": "Peripheral protein",
"image_description": ""
},
{
"fragment_index": 8,
"text_description": "Cholesterol",
"image_description": ""
},
{
"fragment_index": 9,
"text_description": "Drop Zones",
"image_description": "https://asset.sparkl.ac/pb/sparkl-vector-images/img_ncert/lb7ofuICZpBYSABz7EpccsDM1SvDOugMDeZukHIX.png"
},
{
"fragment_index": 10,
"text_description": "Phospholipid head",
"image_description": ""
},
{
"fragment_index": 11,
"text_description": "Hydrophobic tail",
"image_description": ""
},
{
"fragment_index": 12,
"text_description": "Integral protein",
"image_description": ""
},
{
"fragment_index": 13,
"text_description": "Peripheral protein",
"image_description": ""
},
{
"fragment_index": 14,
"text_description": "Cholesterol",
"image_description": ""
},
{
"fragment_index": 15,
"text_description": "Tip:\nRemember: hydrophilic heads face water; hydrophobic tails hide inside the bilayer.",
"image_description": ""
},
{
"fragment_index": 16,
"text_description": "Check Answers",
"image_description": ""
},
{
"fragment_index": -1,
"text_description": "Results\nconst 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 checkAnswersBtn.addEventListener('click', () => {\n feedbackArea.classList.remove('hidden');\n feedbackContent.innerHTML = '<p class=\"text-green-600 text-left\">Answers checked! Review your results above.</p>';\n });",
"image_description": ""
}
]
},
{
"slide": 9,
"fragments": []
},
{
"slide": 10,
"fragments": [
{
"fragment_index": -1,
"text_description": "SA:V — The Maths",
"image_description": ""
},
{
"fragment_index": 1,
"text_description": "Surface area-to-volume ratio vs cell radius",
"image_description": "https://asset.sparkl.ac/pb/sparkl-vector-images/img_ncert/KRcehP8kGZUMKdPedQV86oYjmfISwYEDrSEJarvl.png"
},
{
"fragment_index": 2,
"text_description": "Interpreting the Curve\nFor a sphere, \\( \\text{SA:V} = \\frac{3}{r} \\). Doubling radius halves the ratio.\nThe graph’s steep inverse drop shows how a slight size increase quickly lowers available surface for exchange.",
"image_description": ""
},
{
"fragment_index": 3,
"text_description": "Key Points:\nInverse hyperbola: slope drops fastest at small radii.\nLower SA:V limits diffusion-based nutrition and waste removal.\nCells divide to regain a higher surface area-to-volume ratio.",
"image_description": ""
}
]
}
]