Quizzes: Different types of organic compounds

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Webcytology was created for ThinkQuest 1999.

Different types of organic compounds

A major property of sugars is that they
	1.	do not have functional groups
	2.	always have an equal number of carbon and oxygen atoms
	3.	are not used by most living organisms
	4.	do not contain hydrogen

Long chains of sugars are known as
	1.	polysaccharides
	2.	polypeptides
	3.	disaccharides
	4.	dipeptides

Lipids are said to be hydrophobic, which means that they
	1.	become toxic when they touch water molecules
	2.	readily bond with water
	3.	break apart when they come in contact with water
	4.	do not dissolve in water

A phospholipid contains
	1.	two fatty acid molecules, a molecule of glycerol, and a phosphate ion
	2.	three fatty acid molecules and a phosphate ion
	3.	a single fatty acid molecule, a molecule of glycerol, and two phosphate ions
	4.	a single fatty acid molecule, two molecules of glycerol, and two phosphate ions

Amino acids can bond together to form proteins in what is called a
	1.	protein bond
	2.	hydrogen bond
	3.	amino-carboxyl bond
	4.	peptide bond

Dehydration synthesis is a chemical reaction in which
	1.	two molecules are bonded together when water is added
	2.	two molecules are separated when water is added
	3.	two molecules are bonded together and water is removed
	4.	two molecules are separated and water is removed

ThinkQuest Team #27819 - 27819@for.net
Team: Andrew Kallem, Josh Tauberer
Coaches: Ms. Acerra, Mr. Kwitkin