TLS Online TPP Program

#Id: 7748

#Section 2: General Biology

Zeff=Z –S

Chlorine would have a Z value of 17 (the atomic number of Chlorine). Continuing to use Chlorine as an example, the 10 inner electrons (S) would screen out the positive charge of ten protons. Therefore there would be and effective nuclear charge of 17-10 or +7.

TLS Online TPP Program

#Id: 8138

#Section 3: Genetics, Cellular and Molecular Biology

TLS Online TPP Program

#Id: 9271

#Section 2: General Biology

TLS Online TPP Program

#Id: 10381

#Section 2: General Biology

IL-4 increases expression of class II molecules in resting B cells, turning them into more efficient APCs.

TLS Online TPP Program

#Id: 7948

#Section 3: Genetics, Cellular and Molecular Biology

Biosynthesis of all N-linked oligosaccharides begins in the rough ER with a preformed oligosaccharide precursor containing 14 residues.