7044360
Descripción
Test por Jack Stanley, actualizado hace más de 1 año
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Creado por Jack Stanley
hace más de 7 años
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Pregunta 1
Pregunta
What is the function of the Nucleus?
Respuesta
-
Control of the cell
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To manufacture ATP
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To modify amino acid chains
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To induce enzyme activity
Pregunta 2
Pregunta
What is meant by the term: Magnification?
Respuesta
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How much bigger an image appears when compared with the original object.
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The ability to distinguish between 2 points clearly.
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The magnifying power of the objective lens.
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How much smaller an image appears when compared to the original object
Pregunta 3
Pregunta
What is meant by the term: Resolution?
Respuesta
-
How much bigger an image appears when compared with the original object.
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The magnifying power of the objective lens.
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The ability to distinguish between 2 points clearly.
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How much smaller an image appears when compared with the original object
Pregunta 4
Pregunta
What is the equation for calculating Magnification?
Respuesta
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Total magnification = Image size / Magnification.
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Total magnification = Magnifying power of the objective lens x eyepiece lens.
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Total magnification = Image size x Magnification.
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There is no calculation.
Pregunta 5
Pregunta
Optical microscopes are [blank_start]cheap[blank_end], easy to use, and, [blank_start]portable[blank_end] pieces of equipment. They enable [blank_start]live[blank_end] specimens to be viewed.
Respuesta
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cheap
-
portable
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live
Pregunta 6
Pregunta
What is the wavelength of an Electron microscope?
Respuesta
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0.004nm
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0.004µm
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0.02nm
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0.002µm
Pregunta 7
Pregunta
The type of image displayed from a Transmission electron microscope is
Respuesta
-
2D
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3D
Pregunta 8
Pregunta
The type of image displayed from a Scanning electron microscope is
Respuesta
-
2D
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3D
Pregunta 9
Pregunta
Transmission Electron microscopes produce a grey-scale image
Respuesta
- True
- False
Pregunta 10
Pregunta
Scanning Electron microscopes produce a grey-scale image
Respuesta
- True
- False
Pregunta 11
Pregunta
To prepare a slide you [blank_start]dehydrate[blank_end] the specimen, embed them in [blank_start]wax[blank_end], and, [blank_start]section[blank_end] them.
Respuesta
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dehydrate
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stain
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crush
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iodine
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methylblue
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eosin
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wax
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section
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split
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separate
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slice
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hydrate
Pregunta 12
Pregunta
What does acetic orcein stain? What colour would you expect?
Respuesta
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Cytoplasm: red
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Lipids: red
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Cellulose: yellow
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DNA and chromosomes: red
Pregunta 13
Pregunta
What is meant by the term 'differential staining'?
Respuesta
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Staining each structure in isolation to view structures individually.
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Staining each structure differently to identify each structure.
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Using a variety of stains upon the same component.
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Using only one type of staining.
Pregunta 14
Pregunta
The Golgi apparatus is a modifying unit
Respuesta
- True
- False
Pregunta 15
Respuesta
- True
- False
Pregunta 16
Pregunta
What is the function of the Chloroplast?
Respuesta
-
The site of protein synthesis
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To manufacture water molecules; keeping plant cells hydrated
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The site of photosynthesis
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To give plants green pigments
Pregunta 17
Pregunta
What is the function of the vacuole?
Respuesta
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To maintain turgidity.
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To hydrate the cell in low water concentrations
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To stimulate catabolic reactions
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To trap pathogenic substances
Pregunta 18
Pregunta
Hydrolytic enzymes digest foreign matter
Respuesta
- True
- False
Pregunta 19
Pregunta
Prokaryotic cells contain [blank_start]loops[blank_end] of naked DNA. They also contain whip-like projections called [blank_start]flagella[blank_end], as well as pili.
Respuesta
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hoops
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loops
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rings
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branches
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flagella
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microvili
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undulipodia
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cillia
Pregunta 20
Pregunta
How do Prokaryotic cells divide?
Respuesta
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Mitosis
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Meiosis
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Binary fission
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Cytokinesis
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