What reaction has to occur each time light reaches the eye before the product of this reaction can be recombined with opsin to reform rhodopsin?
a. Cis-retinal must be reconverted to trans-retinal
b. Trans-retinal must be reconverted to cis-retinal
c. -carotene must be reconverted to preformed vitamin A
d. Preformed vitamin A must be reconverted to -carotene
Question 2
The U.S. National Center for Health Statistics (NCHS) has compiled reference standards into growth charts, which indicate expected growth for well-nourished infants, children, and adolescents.
Indicate whether the statement is true or false