Defensins (α and β) Disrupt membranes of bacteria, fungi, protozoan.

TLS Online TPP Program

#Id: 5275

#Unit 7. System Physiology – Animal

L-type calcium channels become inactivated (i.e., they close) within about 100 to 150 milliseconds after opening

TLS Online TPP Program

#Id: 8089

#Unit 1. Molecules and their Interaction Relevant to Biology

Beeswax is Triacontanoylpalmitate, is an ester of palmitic acid with the alcohol triacontanol.

TLS Online TPP Program

#Id: 10038

#Unit 4. Cell Communication and Cell Signaling

After dimerization MyD88 proteins bind to the IL-1R through the TIRs, and facilitates the binding of many copies of the kinases IRAK4 and IRAK1 or IRAK2

TLS Online TPP Program

#Id: 6048

#Unit 10. Ecological Principles

Tropical rain forest

 Rainfall exceeds 230 cm per year, and temperature is hot year-round, averaging 25 to 29C. 

 Tropical rainforests lie in a band around the equator within the tropics of Cancer and Capricorn (23.5° N and S). 

 Soils are commonly shallow and nutrient-poor

There is little seasonal variation in sunlight and temperature

Tropical rainforests are produced 40 per cent of NPP of terrestrial ecosystems.

TLS Online TPP Program

#Id: 6497

#Unit 3. Fundamental Processes

On a linear template, ATP hydrolysis, TFIIE, and the helicase activity of TFIIH (provided by the XPB and XPD subunits) are required for polymerase movement. This requirement is bypassed with a supercoiled template. This suggests that TFIIE and TFIIH are required to melt DNA to allow polymerase movement to begin. To extend elongation into the transcription unit, a kinase complex called P-TEFb is required. P-TEFb contains the CDK9

kinase, which is a member of the kinase family that controls the cell cycle. P-TEFb acts on the CTD to phosphorylate it further on serine 2 of the heptapeptide repeat.