AP Biology Open Stax Units 1-3

What is an atom?

• A type of fruit.

• A unit of time.

• The basic unit of matter

• A small insect.

What are isotopes?

• Atoms of different elements that have the same number of neutrons.

• Atoms of the same element that have different numbers of protons.

• Atoms of different elements that have the same number of protons.

• Atoms of the same element that have different numbers of neutrons.

What are molecules?

• Molecules are the largest units of a chemical compound that retain the chemical properties of that compound.

• Molecules are made up of atoms that have lost their chemical properties.

• Molecules are the smallest units of a chemical compound that retain the chemical properties of that compound.

• Molecules are only found in living organisms and not in non-living matter.

What is the structure of water?

• H2O2

• CO2

• NaCl

• H2O

What is the importance of carbon in biology?

• Carbon has no role in the formation of organic molecules.

• Carbon is not important in biology.

• Carbon is essential for life as it is the building block of organic molecules.

• Carbon is only found in non-living things.

What is the process of synthesizing biological macromolecules?

• Denaturation

• Polymerization

• Hydrolysis

• Condensation

What are carbohydrates?

• Carbohydrates are minerals that support bone health.

• Carbohydrates are proteins that help build muscle mass.

• Carbohydrates are fats that provide insulation for the body.

• Carbohydrates are organic compounds that serve as a major source of energy for the body.

What are lipids?

• Lipids are organic compounds insoluble in water but soluble in organic solvents.

• Lipids are carbohydrates that provide energy to the body.

• Lipids are proteins found in the cell membrane.

• Lipids are inorganic compounds soluble in water but insoluble in organic solvents.

What are proteins?

• Proteins are large biomolecules made up of amino acids.

• Proteins are nucleic acids made up of amino acids.

• Proteins are carbohydrates made up of amino acids.

• Proteins are small molecules made up of amino acids.

What are nucleic acids?

• Macromolecules that store and transmit genetic information

• Proteins that catalyze chemical reactions

• Lipids that make up the cell membrane

• Polysaccharides that provide energy for cells