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27 Cards in this Set
- Front
- Back
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Acute changes |
stress response,reversible |
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Chronic changes |
reversible,longer term,acclimation/acclimization |
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Evolutionary changes |
multiple generations |
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developmental changes |
maturation from concept to adulthood |
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periodic biological clock |
repeating pattern |
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Chemical used in fireflies to make light |
Luciferyl-AMP |
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Natural selection |
change in gene frequencies over time |
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adaptation |
a trait that is in high presence due to a change in environment
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nonadaptive |
not adaptive not serving a purpose |
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genetic drift |
change in frequencies by chance
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pleiotropy |
control by an allele of a single gene of two or more distinct traits |
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Fluid mosaic model |
mosaic of lipids and proteins that move about |
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Integral proteins |
trans-membrane proteins that embedded in the phospholipid bilayer |
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Carbohydrate chains(phospholipid bilayer |
form glycoproteins and glycolipids and also function as cell recognition sites as well as attachment sites fore extracellular proteins |
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Channel protein |
permits diffusion of solutes in aqueous environments |
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transporter protein |
moves specific molecules across the membrane |
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enzyme |
catalyzes a reaction when bonds are formed/broken |
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Receptor protein |
change in membrane permeability and mediation of chemical messages |
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Structural protein |
act as anchors to create junctions
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Tight junctions |
no intercellular space because membranes meet/fuse and differentiates from basal and apical |
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Septate junction |
similar to tight but found in invertebrates |
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desmosome |
stabilize/strengthen connections of filaments |
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gap junctions |
creates pore that allows for 2 way cell communication |
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ligand gated receptor |
2 hydrophillic ligands bind,channel is created and ions can pass through |
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G-protein coupled |
hydrophillic ligand binds, receptor interacts with two other membrane proteins with a secondary messenger produced |
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enzyme/enzyme linked |
hydrophillic ligand binds, activates catalytic site |
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intercellular receptor |
hydrophobic ligand binds and diffuses through membrane and binds |
