All types of myosins

a. bind and hydrolyze ATP.               

b. bind actin filaments.

c. form dimers.                       

d. contain an associated myosin light chain.

e. move toward the (+) end of an actin filament.

TLS Online TPP Program

#Question id: 11519

#Unit 2. Cellular Organization

The mechanism postulated for P-type ATPases takes into account the large conformational changes and the phosphorylation dephosphorylation of the critical:

TLS Online TPP Program

#Question id: 11520

#Unit 2. Cellular Organization

For the SERCA pump, how many Ca2+ ions moves across the membrane during each catalytic cycle ?

TLS Online TPP Program

#Question id: 11521

#Unit 2. Cellular Organization

The Na+-K+ ATPase is responsible for maintaining:

TLS Online TPP Program

#Question id: 11522

#Unit 2. Cellular Organization

What is the major function of the actuator domain in Na+-K+ ATPase?

TLS Online TPP Program

#Question id: 11523

#Unit 2. Cellular Organization

In the given figure, which of the following complex represents high energy intermediate?

TLS Online TPP Program

#Question id: 12177

#Unit 2. Cellular Organization

Calculate the free energy required to move 1 mol of K+ ions from the outside of the cell (where [K+] = 4 mM) to the inside (where [K+] = 140 mM) when the membrane potential is –70 mV and the temperature is 37°C.