AP Biology

What are the three main subatomic particles in an atom?

• Protons, neutrons, electrons

• Protons, ions, molecules

• Neutrons, ions, isotopes

• Electrons, molecules, isotopes

Which type of bond is characterized by the sharing of electron pairs between atoms?

• Ionic bond

• Covalent bond

• Hydrogen bond

• Metallic bond

What property of water allows it to act as a universal solvent?

• High specific heat

• Polarity

• Ice density

• Cohesion

Which macromolecule is primarily composed of amino acids?

• Carbohydrates

• Lipids

• Proteins

• Nucleic acids

What is the role of enzymes in chemical reactions?

• Increase the temperature

• Lower the activation energy

• Change the pH level

• Act as a reactant

What is the term for a molecule that has a partial positive charge on one side and a partial negative charge on the other?

• Nonpolar molecule

• Ionic bond

• Polar molecule

• Covalent bond

Which type of bond involves the sharing of electron pairs between atoms?

• Ionic bond

• Hydrogen bond

• Covalent bond

• Adhesion

What is the process called when a protein loses its shape and function due to external stress?

• Denaturation

• Activation energy

• Adhesion

• Cohesion

Tags

NGSS.HS-LS1-1

Which of the following is a building block of proteins?

• Nucleotide

• Amino acid

• Monomer

• Solute

Tags

NGSS.HS-LS1-6

What is the role of a catalyst in a chemical reaction?

• It increases the temperature of the reaction.

• It decreases the activation energy needed for the reaction.

• It changes the products of the reaction.

• It slows down the reaction.