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TLS Online TPP Program

#Question id: 38767

Q.  Statement I: Polyethylene glycol (PEG) facilitates protoplast fusion by disturbing the plasma membrane organization.
Statement II: PEG can bind Ca²⁺ ions, which act as bridges between negatively charged PEG and plasma membrane components.

#Plant Biotechnology
  1. Both statements are true and Statement II correctly explains Statement I
  2. Both statements are true but Statement II does not explain Statement I
  3. Statement I is true but Statement II is false
  4. Statement I is false but Statement II is true
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TLS Online TPP Program

#Question id: 2067

#Biochemistry

Which of the following would likely diffuse through the lipid bilayer of a plasma membrane most rapidly?
TLS Online TPP Program

#Question id: 2068

#Biochemistry

Which of the following molecules dramatically increases the rate of diffusion of water across cell membranes?
TLS Online TPP Program

#Question id: 2069

#Biochemistry

Which of the following processes includes all of the others?
TLS Online TPP Program

#Question id: 2070

#Biochemistry

The sodium-potassium pump is called an electrogenic pump because it:
TLS Online TPP Program

#Question id: 2071

#Biochemistry

Diffusion of ions across membranes through specific ion channels is driven by:
TLS Online TPP Program

#Question id: 2072

#Biochemistry

Which of the following structures would decrease the electrochemical gradient across a membrane?