Photopigments are molecules that consist of A) two peptides ...

[elizabeth18]

Photopigments are molecules that consist of
 
  A) two peptides and a sugar molecule.
  B) an opsin and a retinal.
  C) a steroid ring.
  D) two fatty acid chains.
  E) a carbon ring and a phenyl ring.

Question 2

A disease that attacks the photoreceptors of the fovea would be expected to
 
  A) impair night vision.
  B) disrupt color vision.
  C) impair eye movements.
  D) impair vision for detection of movement.
  E) produce blurry images.

[paavo]

Answer to Question 1

Answer: B

Answer to Question 2

Answer: B Rationale: A disease that attacks the photoreceptors of the fovea would be expected to disrupt color vision.

[elizabeth18]

Excellent

[bigsis44]

Gracias!