#Question id: 27091
#Unit 1. Molecules and their Interaction Relevant to Biology
#Question id: 2737
#Unit 2. Cellular Organization
The linking number (Lk) of a closed-circular, double-stranded DNA molecule is changed by:
#Question id: 19806
#Unit 12. Applied Biology
#Question id: 2203
#Unit 2. Cellular Organization
Parietal cells acidify the stomach contents while maintaining a neutral cytosolic pH by:
a. exporting “excess” cytosolic OH– as HCO3–.
b. exchanging HCO3– for Cl–.
c. preserving electroneutrality by accompanying the movement of each Cl– ion into the stomach lumen by a K+.
d. the excess K+ ions pumped inward by the H+/K+ ATPase are returned to the stomach lumen, thus maintaining the normal intracellular K+ concentration.
Which of the following combination is correct?
#Question id: 6582
#General Aptitude
14 |
36 |
|
20 |
50 |
36 |
|
54 |
25 |
25 |
|
20 |
10 |
07 |
|
? |
|