PHYS 261 Midterm Study Guide
Questions with Verified Answers
Perfusion - ANSWERSblood supply to an area
Ventilation - ANSWERSmovement of air in and out of the lungs
Alveoli - ANSWERSwhere gas exchange occurs
Surfactant - ANSWERSdecreases surface tension in the fluid lining the alveoli
Boyle's Law - ANSWERSpressure and volume are inversely related
Hemolysis - ANSWERSthe rupture or destruction of red blood cells.
Fibrinolysis - ANSWERSBreakdown and removal of a clot
Function of red blood cells - ANSWERStransport oxygen
Function of platelets - ANSWERSblood clotting
Homeostasis - ANSWERSan organism's ability to maintain steady internal conditions
when outside conditions change
Energy - ANSWERSthe ability to do work
Activation energy - ANSWERSEnergy needed to get a reaction started
Exergonic energy - ANSWERSa reaction that releases free energy
Enzymes - ANSWERSCatalysts for chemical reactions in living things
Enzyme specificity - ANSWERSeach enzyme catalyzes only one kind of reaction
Exocytosis - ANSWERSthe process of moving materials from within a cell to the exterior
of the cell
Resting membrane potential - ANSWERSthe electrical charge of a neuron when it is not
active
CNS (central nervous system) - ANSWERSbrain and spinal cord
