Biology Unit 2 Review

Which of the following defines matter?

• Anything that is a solid or a liquid

• Anything that occupies space and has mass

• Living things found in the universe

What is the positive part of the atom?

• Electron

• Neutron

• Proton

• Nucleus

What is the name of the particle that circles the nucleus of an atom?

• Electron

• Proton

• Neutron

What is the negative part of an atom?

• Proton

• Neutron

• Electron

What part of an atom has the greatest mass?

• Protons

• Electrons

• Neutrons

• Nucleus

Which of the following is is the most abundant element in the body?

• Oxygen

• Barium

• Phosphorus

• Nitrogen

Which two elements are major building blocks in glucose and fructose?

• Carbon and flourine

• Phosphorus and helium

• Carbon and hydrogen

Which element is present in all the large macromolecules in the human body?

• Uranium

• Hydrogen

• Carbon

Which of the atoms forms a covalent bond?

• two oxygen atoms

• two sodium atoms

• an iron atom and an oxygen atom

• a sodium atom and a chlorine

Which two atoms for an ionic bond?

• two oxygen atoms

• two sodium atoms

• sodium and bromine

• flourine and chlorine