Complex II contains five prosthetic groups and four different protein subunits;
a. Subunits A and B extend into the matrix; they contain three 2Fe-2S centers, bound FAD, and a
binding site for the substrate, succinate
b. Subunits C and D are integral membrane proteins, contain a heme group, heme b, and a binding
site for ubiquinone,

TLS Online TPP Program

#Id: 9712

#Unit 4. Cell Communication and Cell Signaling

Ste20 serves as a MAPKKK kinase.

TLS Online TPP Program

#Id: 10565

#Unit 4. Cell Communication and Cell Signaling

Ca2+ influx causes the cell and its organelles to swell

and burst, releasing its contents into the extracellular space which trigger activation of immune-system cells

and cause tissue inflammation and damage

TLS Online TPP Program

#Id: 6980

#Unit 8. Inheritance Biology

Polyploidy 

Some organisms possess more than two sets of chromosomes—they are polyploid.  Allopolyploidy Condition in which the sets of chromosomes of a polyploid individual are derived from two or more species.  Autopolyploidy Condition in which all the sets of chromosomes of a polyploid individual are derived from a single species.

TLS Online TPP Program

#Id: 6479

#Unit 3. Fundamental Processes

Constitutive active housekeeping genes and developmentally regulated genes have TATA-less promoters 

TLS Online TPP Program

#Id: 644

#Unit 3. Fundamental Processes

Alkylating agents induce all types of mutations, including transitions, transversions, frameshifts, and even chromosome aberrations.