Intercalated cells play a major role in acid-base regulation and constitute 30 to 40 percent of the cells in the collecting tubules and collecting ducts

TLS Online TPP Program

#Id: 5764

#Unit 10. Ecological Principles

Simpson’s diversity index DS and species diversity are negatively related.

TLS Online TPP Program

#Id: 2849

#Unit 13. Methods in Biology

SEC a column of microparticulate cross-linked copolymers generally of either styrene or divinylbenzene and with a narrow range of pore sizes is in equilibrium with a suitable mobile phase for the analytes to be separated.

TLS Online TPP Program

#Id: 6305

#Unit 3. Fundamental Processes

The E. coli rrn promoters are also regulated by a pair of small molecules: the initiating NTP (the iNTP) and an alarmone,  guanosine 5 -diphosphate 3-diphosphate (ppGpp). An abundance of iNTP indicates that the concentration of  nucleotides is high, and therefore it is appropriate to synthesize plenty of rRNA. 

TLS Online TPP Program

#Id: 9506

#Unit 6. System Physiology – Plant

P. syringae pv. Syringae (Pss) secrete syringolin A (SylA), a peptide derivative synthesized by a mixed nonribosomal peptide synthetase/polyketide synthetase encoded by a gene cluster. 

TLS Online TPP Program

#Id: 8235

#Unit 10. Ecological Principles

Clustered dispersions

Social groups

Clustered resources

Offspring that remain close to their parents.