Muscle contraction depends on two processes that consume enormous amounts of ATP: 

1. Filament sliding, driven by the ATPase of the myosin

2. Ca2+ pumping, driven by the Ca2+ ATPase

TLS Online TPP Program

#Id: 6783

#Unit 3. Fundamental Processes

cas1, cas2, and cas4 required to create protospacer sequences Cas1 is  integrase, whereas Cas2 is a ribonuclease. In contrast, of other Cas proteins, Cas6 is involved in expression and processing of the CRISPR cluster and Cas3 in the interference of viral infection.

TLS Online TPP Program

#Id: 5748

#Unit 10. Ecological Principles

Ecocline is a zone of gradual but continuous change from one ecosystem to another when there is no sharp boundary between the two in terms of species composition.

TLS Online TPP Program

#Id: 7958

#Unit 2. Cellular Organization

The efficient formation of disulfide bonds in the lumen of the ER depends on the enzyme protein disulfide isomerase (PDI), which is present in all eukaryotic cells

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#Id: 9644

#Unit 4. Cell Communication and Cell Signaling

TLS Online TPP Program

#Id: 4650

#Unit 13. Methods in Biology

BrdU can CAUSE light induced cell death.