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Summary OCR A-Level Biology - Cell Structure

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Hand-written summary notes using Seneca on the whole of Cell Structure in Module 2 - Foundations in biology, OCR A-Level Biology (H420). This includes an overview on eukaryotic cells; prokaryotic cells; eukaryotes ultrastructure; cytoskeleton; methods of studying cells. Happy revising! :)

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sell structure




Contents:
• Eukaryotic Cells
• Prokaryotic Cells
• Eukaryotes Ultrastructure
• Cytoskeleton
• Methods of Studying Cells

, Eukaryotic cells and Prokaryotic cells



similarities differences
contain organelles prokaryotic cells make up single-celled
cell-surface membrane is made up of a prokaryotic organisms
phospholipid bilayer to control the passage eq) bacteria
substances
of across exchange surfaces eukaryotic cells make up eukaryotic
complex

organisms
eg) animals;plants;fungi;algae



eukaryotic cells are larger and more complex
than prokaryotic cells




cells arise from other cells by binary fission in

prokaryotic cells

cells arise from other cells by mitosis or

meiosis in eukaryotic cells




prokaryotic cells do have
not membrane -




bound organelles

eukaryotic cells do have membrane-bound

organelles




eukaryotic cells types


animal Cells plant cells
no vacuole

containing cell sap


no chloroplasts


no ceLL

Wall chloroplasts
nucleus acting as the

ribosomes site ofphotosynthesis

multicellular 6019: Apparatus
mitochondria cell wall is made of
cell membrane cellulose, containing
lysosomes plasmodesmata
ER vacuole where CELLS

↑O
wall exchange
substances
Chloroplast

cell wall made up

ofchitin




fungal cells algal cells

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August 10, 2023
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2022/2023
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