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Summary

Summary cells for CCEA AS Level, ISBN: 9781780730998 Unit AS 1 - Molecules and Cells

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An in-depth set of detailed notes created for CCEA AS1. Notes crafted on GoodNotes and based on CCEA past paper questions, past essays, revision guides and textbook.

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Summarized whole book?
No
Which chapters are summarized?
Chapter 3
Uploaded on
February 12, 2022
Number of pages
12
Written in
2016/2017
Type
Summary

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Eukaryotic Cells
Plant, animal and fungi cells (contain nucleus) Fungal cell
NO choloroplasts so
no photosynthesis

DNA enclosed in nuclear membrane
Chromosomes with helical DNA and histone protein coat
Membrane bound organelles
chloroplasts microtubules oof


mitochondria lysosomes
endoplasmic reticulum Golgi apparatus
vesicles
80s ribosomes (bigger than bacteria)


Animal Cell Plant cell


7




-




Fungal cell- chitin
Plant cell - cellulose

Prokaryotic cells
Bacteria- peptidoglycogen




No membrane bound organelles Bacterial Cell
No nucleus
Not associated with his tones- circular DNA
Small ribosomes 70s
Cell wall made of peptidoglycan
Flagella may be present for mobility




Site of DNA Internal Cell
Size Ribosomes Plasmids Microtubules Capsule
DNA organisation structure Walls
Free in
single circular small 20hm No membrane complex Present slimy outer


USUALLY
-




Prokaryotic
cytoplasm without histones in diameter bound organelles made from small circular Not present capsule maybe

Cell { 5µm
Reglonlncytoplasm peptidoglycan pieces of DNA present

nucleoid holds DNA

DNA inside Linear DNA in chromosomes
Large 25hm in diameter complex membrane bound Cellulose cell wall Present and organised
Eukaryotic
. ,




10 -200µm membrane bound DNA associated with histone plants Not present into centrioles Not present
organelles in in



Cell nucleus proteins form chromatin chitin in animal animal and some
fungal groups

, Prokaryotic-bacteria Eukaryotic- animal, plants, fungal


DNA free in cytoplasm DNA inside membrane bound nucleus
Circular DNA DNA linear and inside chromosomes
70S ribosomes 80S ribosomes
No complex organelles Complex membrane bound organelles
Complex peptidoglycan wall Cellulose- plants , chitin- fungi , no cell wall in animals
Plasmids present No plasmids
No microtubules Spindle and other microtubules




Slime capsule
Storage granules (glycogen or lipid)
Plasmid (small loop of DNA)
Cytoplasm
Free DNA
Cell wall made of glycoprotein
Ribosomes
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