Unit 1 - Review

How many neutrons does Oxygen-17 have?

• 8

• 9

• 10

• 11

Electrons account for the majority of an atom’s mass. True or False?

• True

• False

What is the relative charge of a proton?

• 1

• 0

• -1

• 2

Which subatomic particle has a negligible relative mass?

• Proton

• Neutron

• Electron

• Photon

What is the relative mass of a neutron?

• 1

• 0

• -1

• 2

What is "specific heat"?

• A substance's tendency to resist change in temperature.

• The amount of heat required to change a substance's state.

• The rate at which a substance absorbs heat.

• The temperature at which a substance melts.

What type of bond involves two atoms sharing electrons?

• Ionic Bond

• Covalent Bond

• Metallic Bond

• Hydrogen Bond

What is the term for a protein that speeds up a chemical reaction without being consumed by the reaction?

• Catalyst

• Enzyme

• Reactant

• Inhibitor

What is the main function of carbohydrates in the body?

• Energy storage and supply

• Building muscle

• Producing hormones

• Strengthening bones

The cell membrane is comprised of what?

• Phospholipid Bilayer

• Protein Layer

• Carbohydrate Layer

• Nucleic Acid Layer