Mitochondrial fusion and fission are mediated by a set of GTPase enzymes:

Mitochondrial fusion -MFN1/2 & OPA1

Mitochondrial fission- DRP1

TLS Online TPP Program

#Id: 1098

#Unit 2. Cellular Organization

ATP powered pumps transport ions and various small molecules across membranes always against their concentration gradients.

TLS Online TPP Program

#Id: 1099

#Unit 2. Cellular Organization

P1 ATPases transports

Cu+, Ag+, Cu2+, Zn2+, Cd2+, Pb2+ and Co2+.

TLS Online TPP Program

#Id: 1100

#Unit 2. Cellular Organization

P2 ATPases transports 

Na+, K+, H+ Ca2+, Mg2+ and phospholipids

TLS Online TPP Program

#Id: 1101

#Unit 2. Cellular Organization

P3 ATPases transports-H+ & Mg+2 

7. P4 ATPases are flippases, transports phospholipids 

PS, PC and PE.

TLS Online TPP Program

#Id: 1102

#Unit 2. Cellular Organization

Na+/K+ ATPase generates the low cytosolic Na+ and high cytosolic K+ concentrations. 

TLS Online TPP Program

#Id: 1103

#Unit 2. Cellular Organization

Na+–K+ ATPase, consists of two types of subunits: 

α2 subunit

β2 subunit