Unit 1B Test Review

In the penny lab, soap was added to tap water. When the soapy water was dropped on the penny, what were the results?

• The number of drops with soapy water was more because the soap strengthened the hydrogen bonds in the water.

• The number of drops with soapy water was less because the soap strengthened the hydrogen bonds in the water.

• The number of drops with soapy water was less because the soap weakened the hydrogen bonds in the water.

• The number of drops with soapy water was more because the soap weakened the hydrogen bonds in the water.

In the penny lab, what was one of the constants in the experiment?

• water type

• soap

• penny

• number of drops

In the penny lab, what type of graph would be used to graph the results?

• bar

• line

• pie

• you cannot graph the results

Carbon based compounds are also called ________________ compounds.

• water

• organic

• homogenous

• chemical

Which of the following is not a carbon-based moledule?

• Carbohydrate

• Ice

• Lipid

• Nucleic Acid

Which of the following is the MONOMER of nucleic acids?

• amino acids

• nucleotides

• sugars

• fatty acids

What are the basic building blocks (monomers) of proteins?

• nucleic acids

• peptide bonds

• amino acids

• glycerol and fatty acids

Unlike carbohydrates and lipids, proteins contain __________.

• nitrogen

• carbon

• hydrogen

• oxygen

Which of the following molecules is an example of a carbohydrate?

• amino acids

• fatty acids

• nucleotides

• glucose (monosaccharide)

An advertisement for dog food claims it will build lean muscle and strengthen tendons, as well as provide energy. Which two organic molecules must the supplement contain to provide these benefits?

• carbs and lipids

• nucleic acids and carbohydrates

• lipids and nucleic acids

• proteins and carbs