Bio 1: Cells at University Of Newcastle | Flashcards & Summaries

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Lernmaterialien für Bio 1: Cells an der University of Newcastle

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TESTE DEIN WISSEN
Prokaryote Definition
Lösung anzeigen
TESTE DEIN WISSEN
Cell in unicellular organisms w/o membrane bound nucleus/organelles
Lösung ausblenden
TESTE DEIN WISSEN
Eukaryote Definition
Lösung anzeigen
TESTE DEIN WISSEN
Cell in a unicellular/multicellular organism w/ clearly defined nucleus + membrane bound organelles
Lösung ausblenden
TESTE DEIN WISSEN
Organelles Seen on Light Microscope
Lösung anzeigen
TESTE DEIN WISSEN
Cell wall
Nucleus
Cytoplasm

Occasionally:
Chloroplast
Cell membrane
Vacuole
Lösung ausblenden
TESTE DEIN WISSEN
Light Microscope
Lösung anzeigen
TESTE DEIN WISSEN
Illumination from light
Minutes to hours to prep specimen
Stained by coloured dye
Glass lens
0.25 - 0.3 um resolution
500× - 1500× resolution
Coloured image
Low voltage

Lösung ausblenden
TESTE DEIN WISSEN
Electron Microscope
Lösung anzeigen
TESTE DEIN WISSEN
Illumination from electrons
Dead specimens only as requires vacuum
Days to prep specimen
Coated in heavy metals to reflect electrons
Electromagnetic lens
0.001 um resolution
100,000× - 300,000× magnification
Black + white image
50,000+ volts
Needs cooling system
Viewing w/ computer/photographic plate
Risk of radiation leakage
Lösung ausblenden
TESTE DEIN WISSEN
Cell Membrane Structure 
Lösung anzeigen
TESTE DEIN WISSEN
In all cells
Barrier around cell b/w internal and external environment 
Selectively permeable
Phospholipid bilayer with proteins
Embedded proteins create Mosaic effect
Lösung ausblenden
TESTE DEIN WISSEN
Cytoplasm Structure
Lösung anzeigen
TESTE DEIN WISSEN
Jelly-like watery fluids which fills the cell. 
It contains cytosol, water and dissolved chemicals substances like salts, suagrs, enzymes, amino acids and wastes
Part of the protoplasm that is outside the nucleus
Lösung ausblenden
TESTE DEIN WISSEN
Genes
Lösung anzeigen
TESTE DEIN WISSEN
Sections of DNA with code for proteins. Send instructions to ribosomes
Lösung ausblenden
TESTE DEIN WISSEN
Cell Wall Function
Lösung anzeigen
TESTE DEIN WISSEN
Structural support
Barrier b/w internal/external
Prevent dehydration
Filtering mechanism
 Protection
Allows for tugor pressure (pressure against cell wall)
Permeable
Lösung ausblenden
TESTE DEIN WISSEN
Capsule
Lösung anzeigen
TESTE DEIN WISSEN
In some prokaryotic cell
External layer aids ability to attach to surfaces 
Lösung ausblenden
TESTE DEIN WISSEN
Cisternae
Lösung anzeigen
TESTE DEIN WISSEN
Membrane-bound sacs
Lösung ausblenden
TESTE DEIN WISSEN
Cell Types
Lösung anzeigen
TESTE DEIN WISSEN
Prokaryote
Eukaryote
Lösung ausblenden
  • 7505 Karteikarten
  • 98 Studierende
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Beispielhafte Karteikarten für deinen Bio 1: Cells Kurs an der University of Newcastle - von Kommilitonen auf StudySmarter erstellt!

Q:
Prokaryote Definition
A:
Cell in unicellular organisms w/o membrane bound nucleus/organelles
Q:
Eukaryote Definition
A:
Cell in a unicellular/multicellular organism w/ clearly defined nucleus + membrane bound organelles
Q:
Organelles Seen on Light Microscope
A:
Cell wall
Nucleus
Cytoplasm

Occasionally:
Chloroplast
Cell membrane
Vacuole
Q:
Light Microscope
A:
Illumination from light
Minutes to hours to prep specimen
Stained by coloured dye
Glass lens
0.25 - 0.3 um resolution
500× - 1500× resolution
Coloured image
Low voltage

Q:
Electron Microscope
A:
Illumination from electrons
Dead specimens only as requires vacuum
Days to prep specimen
Coated in heavy metals to reflect electrons
Electromagnetic lens
0.001 um resolution
100,000× - 300,000× magnification
Black + white image
50,000+ volts
Needs cooling system
Viewing w/ computer/photographic plate
Risk of radiation leakage
Mehr Karteikarten anzeigen
Q:
Cell Membrane Structure 
A:
In all cells
Barrier around cell b/w internal and external environment 
Selectively permeable
Phospholipid bilayer with proteins
Embedded proteins create Mosaic effect
Q:
Cytoplasm Structure
A:
Jelly-like watery fluids which fills the cell. 
It contains cytosol, water and dissolved chemicals substances like salts, suagrs, enzymes, amino acids and wastes
Part of the protoplasm that is outside the nucleus
Q:
Genes
A:
Sections of DNA with code for proteins. Send instructions to ribosomes
Q:
Cell Wall Function
A:
Structural support
Barrier b/w internal/external
Prevent dehydration
Filtering mechanism
 Protection
Allows for tugor pressure (pressure against cell wall)
Permeable
Q:
Capsule
A:
In some prokaryotic cell
External layer aids ability to attach to surfaces 
Q:
Cisternae
A:
Membrane-bound sacs
Q:
Cell Types
A:
Prokaryote
Eukaryote
Bio 1: Cells

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