Although L-DOPA Does Have Some Beneficial Effects, It Is Not

question 160

Multiple Choice

Although L-DOPA does have some beneficial effects, it is not a solution to the problem of Parkinson's disease because it

• A) typically becomes less and less therapeutically effective with use.
• B) is too expensive.
• C) can be safely administered to only a small proportion of patients.
• D) is unstable at room temperature.
• E) does not pass through the blood-brain barrier.

---

Definitions:

Sperm

Male reproductive cells responsible for fertilizing a female's egg to initiate pregnancy.

Ova

The plural of ovum; female reproductive cells or eggs which, when fertilized by sperm, can develop into an embryo.

Chromosomes

Thread-like molecules that carry hereditary information for everything from height to hair color in the form of genes.

Deoxyribonucleic Acid

A molecule that carries most of the genetic instructions used in the growth, development, functioning, and reproduction of all known living organisms and many viruses.