Gluconeogenesis occurs in all animals, plants, fungi, and microorganisms. The reactions are essentially the same in all tissues and all species.

The important precursors of glucose in animals are three-carbon compounds such as lactate, pyruvate, and glycerol, as well as certain amino acids

TLS Online TPP Program

#Id: 1340

#XL - T Zoology

HER1 & HER4, can form stable homodimers after binding a growth factor.

TLS Online TPP Program

#Id: 1341

#XL - T Zoology

HER2 can signal only by forming heterodimers with ligand-bound HER1, HER3, or HER4

TLS Online TPP Program

#Id: 1342

#XL - T Zoology

HER3 lacks a functional kinase domain

TLS Online TPP Program

#Id: 1343

#XL - T Zoology

RAS is a small monomeric G-proteins.

TLS Online TPP Program

#Id: 1344

#XL - T Zoology

RAS is connected to the membrane by a prenylated (lipid) tail.

TLS Online TPP Program

#Id: 1345

#XL - T Zoology

All Ras have the CAAX motifs at the C-terminus.