Catalase, are synthesized as precursors with PTS1

Thiolase, are synthesized as precursors with PTS2

TLS Online TPP Program

#Id: 3067

#Unit 10. Ecological Principles

Species turnover on islands is generally low - The number of species on an island might remain the same, but the composition of the species should change continuously as new species colonize the island and others become extinct.

TLS Online TPP Program

#Id: 9297

#Unit 6. System Physiology – Plant

Nitrite reductase

Nitrite (NO2-) is a highly reactive, potentially toxic ion.

Plant cells immediately transport the nitrite into chloroplasts or plastids.

The enzyme nitrite reductase reduces nitrite to ammonium.

Leaf chloroplasts and root plastids contain different forms of nitrite reductase.

Each polypeptide contains two prosthetic groups, an iron-sulfur group and a specialized heme.

NO3-, high sucrose conc, and light induce the transcription of nitrite reductase mRNA.

Asparagine and glutamine repress the induction.

TLS Online TPP Program

#Id: 6841

#Unit 8. Inheritance Biology

Broad-sense heritability range from 0 to 1. 

    0 = all the phenotypic variance results from environmental                  variation. 

1 = all the phenotypic variance results from differences in                genotype.

TLS Online TPP Program

#Id: 4459

#Unit 13. Methods in Biology

Immunoelectron microscopy is used for localizing proteins in thin sections at the electron microscope level.

TLS Online TPP Program

#Id: 9623

#Unit 4. Cell Communication and Cell Signaling

Asymmetric kinase dimer 

Receptor dimerization brings the kinase domains of the two subunits close together, so that the C lobe of one kinase domain binds to the N lobe of the other kinase domain