Eukaryotic Cell Ultra structure

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Nucleus
-Control centre of cell; produces RNA and ribosomes
-Retains genetic information
-10-20μm diametre
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Nuclear Envelope
-Double membrane
-Controls substances entering and entering cell
-Reactions occur here
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Nucleoplasm
Jelly like substance that makes up bulk of nucleus
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Nucleolus
Manufactures rRNA and assembles ribosomes
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Nuclear Pores
Allows passage of large molecules
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Chromatin
Consists of protein and linear DNA
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Mitochondria
-Rod shaped, 1-10μm
-Site of aerobic respiration and production of ATP
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Mitochondria Double Membrane
-Controls exit and entry of material
-Inner membrane folded to form cristae
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Cristae
-Provide large SA for enzymes in respiration
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Matrix
-Contains molecules and enzymes so mitochondria can produce their own proteins
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Rough Endoplasmic Reticulum (RER)
-Contains ribosomes
-Provides large SA for protein synthesis
-Provides a pathway for transport materials
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Smooth Endoplasmic Reticulum (SER)
-Has no ribosomes
-Synthesise, store and transport lipids and carbohydrates
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Golgi Apparatus
-Flattened membrane bound sacs (cisternae)
-Transport and chemically modify substances
-Produces secretory enzymes in form of vesicles
-Produces lysosomes
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Ribosomes
-80S in eukaryotic cells
-Site of protein synthesis
-Assembles mRNA
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Other cards in this set

Card 2

Front

Nuclear Envelope

Back

-Double membrane
-Controls substances entering and entering cell
-Reactions occur here

Card 3

Front

Nucleoplasm

Back

Preview of the front of card 3

Card 4

Front

Nucleolus

Back

Preview of the front of card 4

Card 5

Front

Nuclear Pores

Back

Preview of the front of card 5
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