Cellular Respiration and Oxidation Concepts

What are the main ingredients needed for cellular respiration?

• Carbon dioxide and water

• Glucose and oxygen

• Energy and heat

• ATP and carbon dioxide

What are the main things made during cellular respiration?

• Glucose and oxygen

• Carbon dioxide, water, and energy

• Hydrogen atoms and electrons

• Heat and ATP only

In chemistry, what does "oxidation" mean?

• Gaining electrons

• Losing electrons

• Gaining hydrogen atoms

• Losing hydrogen atoms

How does a biologist describe "reduction"?

• Losing electrons

• Gaining electrons

• Losing hydrogen atoms

• Gaining hydrogen atoms

In a glucose molecule, what is the charge of a hydrogen atom when it gives up an electron to a more "greedy" atom?

• -1

• 0

• +1

• +2

When two oxygen atoms are bonded together in an O2 molecule, what is the charge of each oxygen atom?

• -2

• -1

• 0

• +2

In a carbon dioxide (CO2) molecule, what is the charge of the carbon atom after oxygen atoms "hog" its electrons?

• -4

• 0

• +2

• +4

In chemistry, what does "oxidation" mean for an atom?

• Gaining electrons

• Losing electrons

• Gaining hydrogen atoms

• Losing oxygen atoms

What are the main things that living things use and make during cellular respiration?

• Use carbon dioxide and water, make glucose and oxygen.

• Use glucose and oxygen, make carbon dioxide, water, and energy.

• Use energy and water, make glucose and oxygen.

• Use carbon dioxide and glucose, make oxygen and water.

From a chemist's point of view, what does it mean for a molecule to be reduced?

• It loses hydrogen atoms.

• It gains electrons.

• It loses oxygen atoms.

• It becomes oxidized.