Hypoxia-inducible factor 1 (HIF-1) induces transcription of the VEGF gene

TLS Online TPP Program

#Id: 7926

#Unit 2. Cellular Organization

Rough ER, which is associated with ribosomes, functions in the synthesis and processing of secreted and membrane proteins

Smooth ER, which lacks ribosomes, functions in lipid synthesis.

TLS Online TPP Program

#Id: 2274

#Unit 3. Fundamental Processes

E. coli encodes several other s subunits that can replace σ 70 under certain circumstances.

a.σ 32 

b.σ 54

TLS Online TPP Program

#Id: 1716

#Unit 4. Cell Communication and Cell Signaling

The serum half-life of IgE is quite short (only 2 to 3 days). However, when bound to its receptor on an innate immune cell, IgE is stable for weeks.

TLS Online TPP Program

#Id: 3322

#Unit 6. System Physiology – Plant

V-class proton pumps cannot acidify the lumen of an organelle because these pumps are electrogenic.

TLS Online TPP Program

#Id: 7503

#Unit 4. Cell Communication and Cell Signaling

RAG1 is expressed at all phases of the cell cycle, RAG2 is stable only in G0- or G1-phase cells.