Which of the following describes an association between vitamin A ...

[mpobi80]

Which of the following describes an association between vitamin A and vision?
 
  a. Retinoic acid is the form required for synthesis of retinoblasts.
  b. Light causes retinal to shift from a cis to a trans configuration.
  c. Retinol is the form bound to beta-carotene in the corneal membrane.
  d. Pigment molecules in the retina are composed of a molecule of vitamin A bound to an omega-3 fatty acid.
  e. Retinol protects the visual cortex from teratogenic chemicals.

Question 2

With what vitamin is opsin usually associated in the body?
 
  a. A
  b. B1
  c. C
  d. D
  e. K

[yuyiding]

Answer to Question 1

ANS: B

Answer to Question 2

ANS: A

[mpobi80]

Thanks for the timely response, appreciate it

[parshano]

Gracias!