MCP Final Test

2. A chemical reaction is...

• creation of new atoms
• destruction of atoms
• rearranging of atoms

3. What is the process called when chloroplasts in plant cells can create their own food using sunlight and other inputs?

• chemical revolution
• photosynthesis
• cellular respiration

4. Plant cells complete a chemical reaction to create food. What are the reactants (inputs) for that plant cell to complete this reaction?

• light, oxygen, water
• light, carbon dioxide, water
• glucose (sugar), oxygen

5. Light as an input for plants is made of atoms.

• true (it is made of molecules)
• false (it is made of energy)

6. Plant cells complete a chemical reaction to create food. What are the products (outputs) for that plant cell after the reaction?

• light, oxygen, water
• light, carbon dioxide, water
• glucose (sugar), oxygen

7. What atoms are used to create food molecules (including carbohydrates).

• carbon, oxygen, hydrogen
• argon, neon, oxygen
• sulfur, nitrogen, oxygen

8. We call glucose "stored energy" because...

• you can buy it at the store
• it can be broken down later to create energy
• people bid on it in episodes of the show "Storage Wars"

9. Why don’t plants die when they can’t photosynthesize?

• They don’t need energy.
• They take energy from animals.
• They stop growing completely.
• They use stored food molecules.

10. Where is the seed sprout getting its food from in early spring without leaves?

• From sunlight through veins
• From water alone
• From soil nutrients directly
• From stored food in the seed

11. What is the significance of the seeds in the BTB experiment turning the indicator a different color?

• It shows that seeds produce carbon dioxide.
• It shows that seeds produce oxygen.
• It shows that seeds create light.
• It shows that seeds produce water.