Biology Chapter 2

In the atom, which particles are in constant motion around the nucleus?

• protons

• neutrons

• electrons

• all of the above

In the atom, which particles have a charge of +1?

• protons

• neutrons

• electrons

• all of the above

In the atom, which particles have a mass of about 1 AMU?

• protons

• neutrons

• electrons

• protons and neutrons

In the atom, which article shave a charge of -1?

• protons

• neutrons

• electrons

• all of the above

What is produced when a base is mixed with water?

• hydrogen ions

• hydroxide ions

• oxygen atoms

• oxygen ions

What is produced when an acid is mixed with water?

• hydrogen ions

• hydroxide ions

• oxygen atoms

• oxygen ions

What type of bond results from atoms gaining or losing electrons?

• covalent bond

• ionic bond

• hydrogen bond

• peptide bond

What type of bond results from atoms sharing electrons?

• covalent bond

• ionic bond

• hydrogen bond

• peptide bond

What type of bond results from amino acids joining together?

• covalent bond

• ionic bond

• hydrogen bond

• peptide bond

What type of bond holds water molecules to each other?

• covalent bond

• ionic bond

• hydrogen bond

• peptide bond