In the thick segment of the ascending loop of Henle, paracellular reabsorption of cations, such as Mg++, Ca++, Na+, and K+ occur

TLS Online TPP Program

#Id: 10373

#Unit 4. Cell Communication and Cell Signaling

MHC-Peptide Interaction

TLS Online TPP Program

#Id: 2978

#Unit 3. Fundamental Processes

This alteration to the structure of the chromosome is accomplished by the enzyme topoisomerase. Replication cannot occur on supercoiled DNA, only the relaxed form.

TLS Online TPP Program

#Id: 5286

#Unit 7. System Physiology – Animal

When the cholinergic vagal fibers to nodal tissue are stimulated, the membrane becomes hyperpolarized and the slope of the prepotentials is decreased

TLS Online TPP Program

#Id: 8111

#Unit 1. Molecules and their Interaction Relevant to Biology

TLS Online TPP Program

#Id: 3010

#Unit 3. Fundamental Processes

A single-stranded DNA-binding protein is required to maintain the separated strands.