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22 Cards in this Set
- Front
- Back
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____ is the ratio of an objects image size to its real size whereas ____ is a measure of clarity of the image.
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1. Magnification
2. Resolution |
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The term ___ refers to the cellular anatomy revealed by an electron microscope.
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ultrastructure
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SEM (scanning electron microscopes) are used primarily to reveal _____.
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topography
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TEM (transmission electron microscopes) are used primarily to reveal _____.
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internal ultrastructure of cells
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Generally cell fractionation separates the cell homogenate into the ____ and the ____.
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pellet and supernatant
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Which two domains are prokaryotic?
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Bacteria and Archaea
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Where is the DNA stored in prokaryotic cells?
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Nucleoid
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What are some of the smallest known bacterial cells?
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Mycoplasmas
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Microvilli are found in which cells?
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intestinal cells
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The space between the nucleus and the plasma membrane of a eukaryotic cell is termed ______, whereas the fluid medium that bathes the orgenelles is termed _____.
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1. cytoplasm
2. cytosol |
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Flagellum are composed of a collection of _____.
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micotubules
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What are the 3 components of the cytoskeleton?
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microfilaments
intermediate filaments microtubules |
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peroxisomes produce ____ as a byproduct and eventually convert it to water.
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hydrogen peroxide
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Found in animal cells but not plant cells
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lysosomes
centrosomes, with centrioles flagella (but present in some plant sperm) |
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Found in plant cells but not animal cells
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chloroplasts
central vacuole cell wall plasmodenta |
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Within the nuclues, the ____ is involved in the production of ribosomes
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nucleoulus
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Functions of central vacuole
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storage
breakdown of waste products hydolysis of macromolecules |
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Besides the nuclues, where else can genes be located?
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mitrochondria, chloroplast
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____ regulates exit and entry of most proteins and RNAs on the nucleus' double membrane
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pore complex
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Lines the inner nuclear envelope
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nuclear lamina
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A typical human cell as ___ chromosomes with ____ as the exception.
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46
sex cells (23 only) |
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rRNA is produced in the _____.
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nucleolus of a nondividing nucleus
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