This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: _x
-._/ 2) 3) 8) Physiology is the study of how the structures (ceils, tissues, organs & organ systems) of the body function.
a. True b. False tissues are attached to the basement membrane and function as exocrine and endocrine organs.
8. Connective b. Nervous c. Epithelial d. Muscle Which at the following matches between tissue and function are correct?
a. Connective : exchange
b. Muscle : heat production
c. Nerve : transport
ct. Epithelial : tocomotion
e. Connective : propulsion Which of the following matches between organelle and function are correct?
a.Lysosome : generate ATP
b.Rough Endoplasmic Reticulum : site of protein synthesis
c.GoIgi Apparatus : synthesis of fatty acids and iiplds
dMitoc‘nondria 1 location of the DNA that determines cetl function
e.Nucteoius : digest bacteria and old organelles The phospholipid bilayer of a cell membrane is a rigici structure that allows little mobility of its' components.
b. False ion channels are chains of amino acids that are integrated into the membrane of a cell, which provides a
pathway for ions to diffuse across the membrane. a. True 1). False A secondary active transporter uses the concentration gradient for one ion to move another molecule ___.
. against its' gradient
into the call out of the cell in the same direct in the opposite direction sense inhibiting the mitochondria of a cell woutd the concentration of K outside the cell.
a. increase b. decrease
c. not change Diffusion describes how the random movement of a molecule leads to its’ net movement from higher to
lower concentration. a. True b. False 10) A 300 mOsm solution contains more water per liter than a 290 mOsm solution. a. True
b. False 11) if only Na channels are open, resting membrane potentiat must be the equilibrium potential of Na. a.' True
1). galse 12) A cell placed in a solution with 0.15 M glucose would “because the solution is
. swell : hypertonic swell : hypotonic shrink : hypertonic shrink : hypotonic not change voiume : isotonic neenm 13) Which of the changes below would resuit in a decrease in the rate of Na diffusion into a cell?
’ a. Increase the extracellular Na concentration
b. Decrease the number of open Na channels
0. Decrease the thickness of the cell membrane
d. increase the surface area of the cell membrane 14) Which of the following best describes the primary role (what it does directly) of the NaIK ATPase?
a. Change membrane potentiat
b. Rapid upstroke of the action potential
0. Maintain the Na and K concentration gradient
d. Conduction of an action potential along an axon 15) increasing extracellular K (cell already permeable to Na and K) would cause a cell to if there were
no change in the number of open ion channels.
c. not change Ets’ membrane potential ...
View Full Document
- Spring '08