5416070
Description
Quiz by Amy Le Grys, updated more than 1 year ago
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Created by Amy Le Grys
almost 8 years ago
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Question 1
Question
Magnification equation
Answer
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magnification= size of image / size of real object
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magnification= size of real object / size of image
Question 2
Question
Before cell fractionation what is the sample put in?
Answer
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A cold, buffered solution with a similar water potential to the sample
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Nothing
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A warmed solution with a high pH
Question 3
Question
What is homogenation?
Answer
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The preparation of the sample for cell fractionation
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The breaking down of cells in a homogeniser
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The removal of foreign objects in a sample
Question 4
Question
What happens in Ultracentrifugation?
Answer
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The cell fragments are separated in a centrifuge
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Fragmentation of cells
Question 5
Question
At what speed are nuclei, mitochondria and lysosomes separated out?
Answer
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Nuclei- 3500 min-1
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Mitochondria- 16500 min-1
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Lysosomes- 1000 min-1
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Nuclei- 1000 min-1
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Mitochondria- 3500 min-1
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Lysosomes- 16500 min-1
Question 6
Question
Transmission electron microscope (TEM)
Answer
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A thin sample is used to create a photomicrograph-not in colour. A photomicrograph is a 2D flat image due to the thinness of the sample and it has a resolution of 0.1 nanometres.
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Sample does not need to be too thin as electrons don't penetrate. Creates a 3D image which can be coloured and it has a resolution of 20 nanometres.
Question 7
Question
What is in a Eukaryotic cell?
Answer
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Nucleus
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mitochondria
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Chloroplasts
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Endoplasmic reticulum
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Golgi apparatus
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Lysosomes
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Ribosomes-80s
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Ribosomes- 70s
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Cell wall
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Vacuoles
Question 8
Question
Structures in a bacteria cell
Answer
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DNA
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Cell wall
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Nucleus
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Plasmid
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Capsule
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Cell-surface membrane
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Attachment protiens
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Circular DNA
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flagellum
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Cytoplasm
Question 9
Question
What is in a Virus?
Answer
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Capsid
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Cell wall
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Attachment protein
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RNA
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DNA
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Capsule
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Reverse Transcripase
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matrix
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Cytoplasm
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lipid envelope
Question 10
Question
Order of mitosis
Answer
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Telophase, Anaphase, Metaphase, Prophase
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Prophase, Metaphase,Telophase, Anphase
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Prophase, Metaphase, Anaphase, Telophase
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Metaphase, Prophase, Anaphase, Telophase
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