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Exercise 2 Test

Enter the letter for the matching B
incorrect
1.
Hypertonic
incorrect
2.
Cell working with or against mechanisms of:
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3.
Diffusion
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4.
What is a concentration gradient
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5.
Nonpolar compounds
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6.
What by-products of metabolism must a cell release?
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7.
The quicker a liquid moves into a cell...
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8.
Selectively permeable membrane
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9.
What if concentration is too high?
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10.
Temperature above absolute zero
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11.
Distance that molecules move without encountering other molecules depends on?
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12.
The higher the Partition Coefficient
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13.
What cells need in order to work?
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14.
In the lab of Lipid solubility, which compound was fastest to lyse?
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15.
Diffusion of a substance?
A.
molecules are in a state of constant motion due to the heat energy imparted to them
B.
the greater its chance of penetrating into cells
C.
-CO2 -ethanol or lactic acid -oxygen produced in photosynthesis -nitrogenous wastes
D.
difference in concentrations
E.
The nature of the material
F.
become toxic to cell
G.
a membrane that permits the free passage of water, but prevents or retards the movement of other substances
H.
directly proportional to the absolute temperature in degrees Kelvin and inversely proportional to the square root of its molecular weight
I.
Diffusion
J.
3M propyl alcohol (C3H7OH)= P.C= 0.156
K.
- Sources of energy - all required elements - oxygen for aerobic organisms - any cofactor that cannot synthesize (vitamins)
L.
water moves out of the cell, cell shrinks
M.
the quicker pressure will be built up, and the sooner the cells will lyse
N.
the electrons are equally shared by the atoms sharing a bond, as in the long-chain portion of fatty-acid molecules- soluble in nonpolar solvents (hexane and ether) but no solubility in polar solvents (water)
O.
substances move from an area of high concentration to an area of lower concentration
Type the B that corresponds to the displayed A.
incorrect
16.
movement of particules at high energy
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17.
What is the function of the molecule's temperature and molecular weight?
Type the A that corresponds to the displayed B.
incorrect
18.
cell must maintain stable internal conditions
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19.
- sugar - reduced organic compound- convert to ATP
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20.
water moves in the cell where there's less water, cell swells
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21.
osmotic pressure of both sides of a semipermeable membrane is equal -no change in cell shape or size
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22.
-special case of diffusion -involves the passage of water through a selectively permeable membrane
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23.
Amount of water that will diffuse -as water moves into the cell, the pressure in the cell increases until the water ceases to enter
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24.
=less polar= faster cell entry
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25.
The ratio of the solubility of a compound in a nonpolar solvent relative to its solubility in water; also directly related to the ability of compounds to penetrate cell membranes

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Created by: Jahazania
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