Liver cells are exposed to radioactive amino acids; all proteins synthesized during this time are radioactive. the cells are then re moved at 5-minute intervals and fractionated. where in the cells is the radioactively labeled enzyme lipase performing its intracellular functions?
a. in lysosomes
b. on ribosomes
c. in the cytoskeleton
d. in the endoplasmic reticulum
e. in the golgi i know that the answer is in the er, but why wouldn't it be in the ribosomes if that is where proteins are synthesized.

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.

Match the functions to the cell types ? contraction and relaxation. conducting electrochemical signals fighting diseases carrying genetic material

Which of the following is a limitation of a clinical trial? a.)amount of random assignments b.)hospital cost c.)number of test tubes d.)amount of peer review