#Question id: 1548
#Unit 4. Cell Communication and Cell Signaling
B-cell survival in the follicle is dependent on?
#Question id: 10179
#Unit 6. System Physiology – Plant
A a plant to invest energy in developing multiple cell layers, they are shaped like pillars that stand in parallel columns one to three layers deep. Below the epidermis, the top layers of photosynthetic cells are called
#Question id: 17262
#Unit 7. System Physiology – Animal
#Question id: 73
#Unit 1. Molecules and their Interaction Relevant to Biology
Match the Variation of Reaction Spontaneity (Sign of ΔG) given in Column I with the Signs of ΔH and ΔS given in column II.
COLUMN I |
COLUMN II |
|
|
|
ΔH |
ΔS |
ΔG = ΔH – TΔS |
1. |
− |
+ |
a. The
reaction is both enthalpically and entropically opposed. It is nonspontaneous
(endergonic) at all temperatures. |
2. |
− |
− |
b. The
reaction is enthalpically opposed (endothermic) but entropically favored. It
is spontaneous only at temperatures above T = ΔH/ΔS. |
3. |
+ |
+ |
c. The
reaction is enthalpically favored but entropically opposed. It is spontaneous
only at temperatures below T = ΔH/ΔS. |
4. |
+ |
− |
d. The
reaction is both enthalpically favored (exothermic) and entropically favored.
It is spontaneous (exergonic) at all temperatures. |
#Question id: 1551
#Unit 4. Cell Communication and Cell Signaling
function of CR2