Flashcards
GCSE - Cells and Microscopes
Flashcards do conjunto (26)
- 1The function of the Cell WallProvides support and structure the cell
- 2The function of the Cell MembraneControls what enters and exits the cell
- 3The function of the NucleusControls the cell (like the brain of the cell)
- 4The function of the CytoplasmWhere chemical reactions occur
- 5Eukaryotic Cells have _______A Nucleus
- 6Prokaryotic Cells have _______No Membrane-Bound Organelles (Such as Nuclei)
- 7The Function of the Bacterial CapsuleProtection from other Substances (such as Stomach Acid)
- 8The Function of the Bacterial Chromosomal DNAControls the Cell without the Nucleus and contains DNA
- 9The Function of the Bacterial Plasmid DNAContains DNA that can be Passed between Bacterium and Genes for Resistance
- 10The Function of the Bacterial PiliSticks Cell to Host Cells or Surfaces
- 11The Function of the Bacterial FlagellaTail-like Structure used for Movement (Spins)
- 12The Function of the RibosomeProduces Protein from Amino Acids and Subunits
- 13What Unit Uses "m"?Metres
- 14What Unit Uses "mm"Millimetres
- 15What Unit Uses "μm"Micrometres
- 16What Unit Uses "nm"Nanometres
- 17What Unit Uses "pm"Picometres
- 18Order of MeasurementsMetre, Millimetre, Micrometre, Nanometre, Picometre
- 19How do you get to Each MeasurementMultiply by 1000 to go smaller
Divide by 1000 to get bigger
( ͡° ͜ʖ ͡°)( ͡° ͜ʖ ͡°)( ͡° ͜ʖ ͡°)( ͡° ͜ʖ ͡°)( ͡° ͜ʖ ͡°) - 20Microscope Triangle / Microscope CalculationSize of Image
----------------------
Actual Size | Magnification
Size of Image = Actual Size * Magnification - 21Name Four Adapted Structures in a Sperm Cell and Their FunctionsAcrosome - Contains Enzymes
Haploid Nucleus - Contains Half of all Chromosomes
Mitochondria - Releases Energy for Quick Movement
Long Tail - Moves Side to Side to Move the Cell Forward
( ͡° ͜ʖ ͡°)( ͡° ͜ʖ ͡°)( ͡° ͜ʖ ͡°)( ͡° ͜ʖ ͡°)( ͡° ͜ʖ ͡°)( ͡° ͜ʖ ͡°)( ͡° ͜ʖ ͡°) - 22Name Four Adapted Structures in an Egg Cell and Their FunctionsCytoplasm - Large Store of Nutrients for the Embryo
Haploid Nucleus - Contains Half of all Chromosomes
Cell Membrane - Hardens after Fertilisation
Jelly Layer - Hardens after Sperm and Egg Nuclei Fuse
( ͡° ͜ʖ ͡°)( ͡° ͜ʖ ͡°)( ͡° ͜ʖ ͡°)( ͡° ͜ʖ ͡°)( ͡° ͜ʖ ͡°)( ͡° ͜ʖ ͡°)( ͡° ͜ʖ ͡°) - 23Name an Adapted Structure in a Ciliated Epithelial Cell and Their FunctionsFine Hair-Like Exteriors - Sweep from Side to Side to Move Things across the Cell Surface
- 24Name Factors of Light Microscopes Compared to Electron MicroscopesUses Light to see Specimens
Lower Magnification
Lower Resolution
Cheaper
Smaller
Magnification of up to 2000x
Lenses made of Glass
Specimen can be Dead or Alive :O - 25Name Factors of Electron Microscopes Compared to Light MicroscopesHigher Magnification
Higher Resolution
Extremely Expensive very cash money
Very Large ( ͡° ͜ʖ ͡°)
Uses Electrons to VIew Specimen
Specimen need to be Deaded :O :(
Operates under a Vaccum
Lenses are made of Electromagnets - 26Name the Main Differences of Transmission Electron Microscopes (hoi im tem) and Scanning Electron Microscopes (SEM)TEM:
Electrons Pass-Through
Up to x1,000,000 Magnification
Very Thinly Sliced Specimen
2D Images
SEM:
Electrons Bounce Off the Surface
Specimen can be Thicker
Up to x30,000 Magnification
Informações
- Descrição
- GCSE Biology FlashCards sobre GCSE - Cells and Microscopes, criado por Malachy Moran-Tun em 14-02-2019.
- Criado por
- Malachy Moran-Tun
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