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18 Cards in this Set
- Front
- Back
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Define physiology
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The study of normal functions in the body
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What are the 5 levels of physiology?
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cells > tissues > organs > systems > whole body
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Define homeostasis?
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Maintaining balance/equillibrium
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What are the implications of the multiple levels of physiology on, say, a drug?
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Its action at a cellular level builds the tissue response, which builds the organ response, and thus the whole body's response. Each level's action is important.
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What does smooth ER do?
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Detoxification, lipid synthesis
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What does rough ER do?
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Protein synthesis
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What does the golgi apparatus do?
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Packaging and finishing cellular products.
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What do biological membranes allow?
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Compartmentalization, selective transport,
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What are the three components of a phospholipid?
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Ethanolamine phosphate head
Glycerol bonder Fatty acid tail |
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Characterize the way biological membrane phospholipids work together.
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Fluid mosaic model
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Is the amount/age of phospholipids in a biological membrane constant?
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No. Pieces are always being added and removed.
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What is the rough composition of a cell membrane? (protein, phospholipid, carbohydrate, cholesterol balance)
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~1/2 phospholipid
~1/2 protein the rest is carbohydrate and cholesterol |
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What is an integral protein?
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A protein which fully penetrates a biological membrane.
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What do integral proteins do for a biological membrane's structure?
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It helps hold the relatively floppy phospholipid bi-layer in shape.
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What are the 3 components of a cellular nucleus?
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Nuclear membrane, nucleoplasm, & nucleolus
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What is nucleoplasm made of?
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Viscous liquid that holds chromatin (DNA, histones, etc)
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What does the nucleolus contain?
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Proteins and nucleic acids.
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What function does the nucleolus perform?
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It holds the components needed to transcribe tRNA.
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