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

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#Id: 4622

#Unit 13. Methods in Biology

 A precipitation curve for a system of one antigen and its antibodies. This plot of the amount of antibody precipitated versus increasing antigen concentrations (at constant total antibody) reveals three zones: 

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#Id: 3218

#Unit 4. Cell Communication and Cell Signaling

Chemical carcinogens classified into two general categories:
1. Direct-acting carcinogens
2. Indirect-acting carcinogens

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#Id: 5722

#Unit 10. Ecological Principles

Ecotypes, individuals of a species that vary in external appearance and their variations are genetically fixed and irreversible The individuals of a species growing under different environmental conditions differ in external appearance, but these changes are only temporary, not permanent, and hence reversible Ecads (Ecophenes). 

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#Id: 7885

#Unit 2. Cellular Organization

VDAC 

A multifunctional transmembrane channel protein (similar in structure to bacterial porins) allow passing of  ions and most small hydrophilic molecules (up to about 5000 Da).

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#Id: 10014

#Unit 4. Cell Communication and Cell Signaling

Transcription Factor

zinc-finger transcription factor Cubitis interruptus