Practice Questions

TLS Online TPP Program

#Question id: 11342

What happens to K⁺ transport by valinomycin when the membrane is cooled below its transition temperature?

#Unit 2. Cellular Organization

K⁺ transport ceases because the ionophore-K+ complex cannot diffuse through the membrane when the lipids are immobilized in a sol-like state
K⁺ transport increases because the ionophore-K+ complex can diffuse through the membrane when the lipids are immobilized in a gel-like state.
K⁺ transport ceases because the ionophore-K⁺ complex can diffuse through the membrane when the lipids are immobilized in a gel-like state.
K⁺ transport ceases because the ionophore-K⁺complex cannot diffuse through the membrane when the lipids are immobilized in a gel-like state.

More Questions

TLS Online TPP Program

#Question id: 7520

#General Aptitude

A train X leaves P at 6 am and reaches Q at 10 am. Another train Y leaves Q at 8 am reaches P at 11.30 am. At what time do the two trains cross each other?

TLS Online TPP Program

#Question id: 33894

#Unit 2. Cellular Organization

What is the Cot value in reassociation kinetics?

TLS Online TPP Program

#Question id: 32261

#Unit 2. Cellular Organization

Microsomes represent small authentic versions of the ER, still capable of, except:

TLS Online TPP Program

#Question id: 4215

#Unit 3. Fundamental Processes

When an oligosaccharide is covalently bonded to an asparagine (or other amino acid) side chain, the resulting product is a(n)

TLS Online TPP Program

#Question id: 2232

#Unit 2. Cellular Organization

A GPI anchor

a. serves to attach some proteins to the cytosolic face of the plasma membrane.

b. contains phosphotidylserine.

c. may be cleaved to release the protein from the membrane.

d. contains sugar residues in addition to lipid components.

e. contains phosphoethanolamine.