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15 Cards in this Set
- Front
- Back
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What is an Antigen?
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a foreign substance which stimulates to production of antibodies
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What are Anti-Bodies?
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immunoglobins, react with specific antigen
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What plasma is in each blood type?
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O- antiB and antiA
A- antiB B-antiA AB- none |
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What determines positive and negative blood types?
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Rh; d-antigen in only positive blood types
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What influences the rate of diffusion?
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Molecular weight
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What are the 5 membrane functions?
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barrier, transport, organization, communication, and recognition
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What is diffusion?
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movement of molecules from regions of higher concentration to regions of lower concentration
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What is osmosis?
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Movement of water through a semipermeable membrane
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What is the difference between active transport and passive diffusion?
What is facilitated diffusion? |
Passive- no energy
Active- energy needed Facilitated- sped up |
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What are receptors?
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markers that sense hormones on cell surface
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What is dialysis?
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Process in which small molecules diffuse around a membrane
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What are cell surface markers?
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allow similar types of cells to come together to form tissues
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What is the rate of diffusion equation?
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1/√(MW)
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Biological membranes are made up of what 3 substances?
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Phospholipids, proteins, and carbohydrates.
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How many layers of Phospholipids are on a membrane?
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2
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