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?

TLS Online TPP Program

#Question id: 4430

#Unit 3. Fundamental Processes

During splicing, an unusual type of base pairing occurs. What is it and what does it do?

TLS Online TPP Program

#Question id: 5316

#Unit 11. Evolution and Behavior

Why is sequencing of eukaryotic genomes more difficult than sequencing genomes of bacteria or archaea?

TLS Online TPP Program

#Question id: 32398

#Unit 1. Molecules and their Interaction Relevant to Biology

Nucleoside diphosphate kinase functions in association with

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#Question id: 12427

#Unit 10. Ecological Principles

Trophic efficiency is

TLS Online TPP Program

#Question id: 11785

#Unit 7. System Physiology – Animal

A man is taking a number of medications, one of which appears to be interfering with the emission phase of the sexual act. Which of the following medications could cause this problem?