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vert anatomy term quiz 1

Terms in this set (45)

adipose tissue
fat tissue that contains adipocytes which store triglycerides
reactive oxygen species
unstable molecules that contain oxygen and easily react with other molecules with the potential to damage cells
phosphagens
high energy storage compounds which re-energize ADP
facultative anaerobes
use oxygen in aerobic respiration but can also survive without oxygen by using anaerobic respiration or fermentation
obligate anerobes
can only survive in environments without oxygen
phospholipids
a lipid containing a phosphate, have a hydrophilic "head" and hydrophobic "tails"
tonicity
the ability of an extracellular solution to make water move in or out of a cell
symporting
transport where two compounds move across a membrane in the same direction
antiporting
transport where two compounds move across a membrane in opposite directions
gap junction
specialized intracellular connection between two cells (cytoplasmic connection)
ligand
a molecule that binds to another molecule, typically a receptor
paracrines
a hormone that acts locally by diffusing from its source to nearby cells
neurotransmitters
diffuses across the synapse to initiate an impulse to another structure
hormones
regulatory substances secreted and transported to specific cells in the blood to elicit action
pheromones
chemicals that act like hormones outside the body to impact others' behavior
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