Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 16902
TLS Online TPP Program

#Question id: 2179

Ion channels achieve selectivity in transport through all of the following mechanisms EXCEPT:

#XL - S Microbiology

  1. evolution from distinct and different parent proteins.

  2. divergent evolution from a single type of channel protein.

  3. low activation energy for selective passage of the dehydrated ion.

  4. use of P segments to form an ion selectivity filter.

More Questions
TLS Online TPP Program

#Question id: 669

#XL - Q Biochemistry

Ramachandran determined the ʺallowedʺ values of the phi and psi angles primarily by considering ________.
TLS Online TPP Program

#Question id: 670

#XL - Q Biochemistry

The distance along a helix axis for one complete turn is called the ________.
TLS Online TPP Program

#Question id: 671

#XL - Q Biochemistry

Which was a major scientific accomplishment by Linus Pauling?
TLS Online TPP Program

#Question id: 672

#XL - Q Biochemistry

An ideal α-helix has a pitch of 0.54 nm and a rise of 0.15 nm. What is the length along the helix axis for a segment of an ideal α-helix that contains 30 amino acids?
TLS Online TPP Program

#Question id: 674

#XL - Q Biochemistry

Proline is not often found in a-helices of proteins because it
TLS Online TPP Program

#Question id: 675

#XL - Q Biochemistry

Which statement is not true about an α-helix?