EOC Project Test

H2o is a what molecule.

• Polar

• Nonpolar

• Ionic

• metallic

What word describes when water is attracted to other substance?

• Cohesion

• Capillary action

• Adhesion

• Surface tension

Why can water have no net charge but have slightly charges in different parts of the molecule?

• Because it is hydrophobic

• The oxygen end is slightly negative and the hydrogen end is slightly positive

• The hydrogen end is slightly negative and the oxygen end is slightly positive

• The hydrogen and oxygen ends change in polarity

A molecule with electrically charged areas is called a

Which is not a property of water?

• Water is polar

• Excellent solvent

• Slippery

• High heat capacity

What is NOT a macromolecule?

• CHON

• ATP

• CHONP

• CHO

How many bonds does carbon form?

• 3

• 5

• 4

• 2

Which of these is NOT a structure of macromolecules

• Lipid

• Proteins

• Carbs

• Chemical

Enzymes are an example of

• Lipids

• Carbohydrate

• Protein

• Nucleic Acid

What is the purpose of an enzyme?

• Given permission for the reaction

• Speed up reactions

• control how many reactions occur

• raise activation energy