Practice Questions

TLS Online TPP Program

#Question id: 2210

Which of these is a general feature of the lipid bilayer in all biological membranes?

#XL - Q Biochemistry

Individual lipid molecules are free to diffuse laterally in the surface of the bilayer.
Individual lipid molecules in one face (monolayer) of the bilayer readily diffuse (flip-flop) to the other monolayer.
Polar, but uncharged, compounds readily diffuse across the bilayer.
The bilayer is stabilized by covalent bonds between neighboring phospholipid molecules.

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TLS Online TPP Program

#Question id: 20174

#XL - P Chemistry

If wavelength of photon is 2·2 × 10^–11 m, h = 6·6 × 10^–34 Js, then momentum of photon is

TLS Online TPP Program

#Question id: 10135

#XL - R Botany

Which of the following are strongest reductant?

TLS Online TPP Program

#Question id: 13028

#XL - S Microbiology

The Vir gene responsible for transcription of other vir genes needed for ssDNA synthesis and endonuclease activity and transport to the plant cell is –

TLS Online TPP Program

#Question id: 1545

#XL - S Microbiology

B cells negatively regulated by,

TLS Online TPP Program

#Question id: 19516

#XL - P Chemistry

Which of the following does not belong in the category of electrochemical cells?