Isomers

Part A

L-dopa is used to treat _____.

Correct

People with Parkinson’s disease lack dopamine.

Part B

What kind of effect does R-dopa have on Parkinson’s disease?

	It alleviates the symptoms.
	It makes the symptoms of Parkinson’s disease worse.
	At first it makes the symptoms worse but over the long term it alleviates the symptoms.
	None.
	At first it alleviates the symptoms but over the long term it makes the symptoms worse.

Correct

R-dopa has no effect on Parkinson’s disease.

Part C

These molecules are _____.

Correct

The two molecules differ in the covalent bond relationships among their atoms.

Part D

These molecules are _____.

Correct

These molecules differ in how their atoms are arranged about a double bond.

Part E

These molecules are _____.

Correct

These molecules are mirror images.

Part F

Enantiomers are molecules that _____.

	contain an –OH group
	differ in the arrangement of their molecules about a double bond
	are isomers that differ in the covalent partnerships between their atoms
	are mirror images
	contain a carboxyl group

Correct

This is the definition of enantiomers.

Part G

Geometric isomers are molecules that _____.

	differ in their molecular formulas
	are mirror images
	are isomers that differ in the covalent partnerships between their atoms
	differ in the arrangement of their atoms about a double bond
	are isomers in which one of the molecules contains an amino group and the other contains a phosphate group