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Essential Idea:
Essential Idea:
Eukaryotes have a much more complex cell structure than prokaryotes
Eukaryotes have a much more complex cell structure than prokaryotes
Understandings:
- Prokaryotes have a simple cell structure without compartmentalisation
- Eukaryotes have a compartmentalised cell structure
- Electron microscopes have a much higher resolution than light microscopes
Applications:
- Structure and function of organelles within exocrine gland cells of the pancreas and within palisade mesophyll cells of the leaf
- Prokaryotes divide by binary fission
Skills:
- Drawing of the ultrastructure of prokaryotic cells based on electron micrographs
- Drawing of the ultrastructure of eukaryotic cells based on electron micrographs
- Interpretation of electron micrographs to identify organelles and deduce the function of specialised cells
Nature of science:
Nature of science:
Developments in scientific research follow improvements in apparatus—the invention of electron microscopes led to greater understanding of cell structure. (1.8)
International-mindedness:
International-mindedness:
Microscopes were invented simultaneously in different parts of the world at a time when information travelled slowly. Modern-day communications have allowed for improvements in the ability to collaborate, enriching scientific endeavour.
Micrographia by Robert Hooke is one of the earliest works about cells. It is kindly published by the US National Library of Medicine
Theory of knowledge:
Theory of knowledge:
The world that we inhabit is limited by the world that we see. Is there any distinction to be drawn between knowledge claims dependent upon observations made by sense perception and knowledge claims dependent upon observations assisted by technology?
Ch 1.2 Ultrastructure of cells.pptx
Ch 1.2 questions.docxGoogle Sites
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