A molecule is the smallest part of a substance that has the physical and chemical properties of that substance. In some respects, a molecule is similar to an atom. A molecule, however, is composed of more than one atom.

TLS Online TPP Program

#Id: 9290

#Section 2: General Biology

Ammonium uptake from the soil is carried by AMT/Rh family transporters

TLS Online TPP Program

#Id: 9291

#Section 2: General Biology

Two types of symporters (NRT1 and NRT2) and one antiporter (CLC) are involved in nitrate transport in plants.

TLS Online TPP Program

#Id: 9292

#Section 2: General Biology

TLS Online TPP Program

#Id: 9293

#Section 2: General Biology

Ammonium assimilation in roots

TLS Online TPP Program

#Id: 9294

#Section 2: General Biology

Nitrate reductase

Homodimers, two identical subunits

Each subunit with 100kD

Each subunit contains 3 prosthetic groups:

FAD, heme, and molybdenum complexed to pterin (an organic molecule). 

TLS Online TPP Program

#Id: 9295

#Section 2: General Biology

The nitrate reductase dimer- Three binding domains