What must a phenylketonuria patient leave out of his or her diet? A. a specific amino acid
B. all carbohydrates
C. all amino acids
D. some specific carbohydrates

What are the four basic classes of organic molecules how do they differ structurally and functionally

Acar company is testing seatbelts using crash test dummies. the company finds that when cars come to a sudden stop, the crash test dummies' bodies continue to move forward. the seat belt keeps the crash test dummies from hitting the back of the seat in front of them. why do the crash test dummies' bodies continue to move forward even though the car stopped? a. the friction opposing their bodies' movement keeps them in motion. b. the inertia of their bodies keeps them in motion. c. the forward acceleration of the car keeps them in motion. d. the gravity pulling on the car keeps them in motion.

Which organelle breaks down sugar molecules that supply energy to the cell ?