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- 1. Multiple Choice
What are the reactants of photosynthesis?
carbon dioxide, sunlight and glucose
water and oxygen
carbon dioxide, oxygen and sunlight
carbon dioxide, water and sunlight
- 2. Multiple Choice
What are the products of photosynthesis?
glucose and sunlight
glucose and carbon dioxide
glucose and oxygen
carbon dioxide, water and sunlight
- 3. Multiple Choice
What plant cell part performs photosynthesis?
stems
roots
chlorophyll
chloroplast
- 4. Multiple Choice
Why are green plants green?
chlorophyll absorbs green light
chlorophyll absorbs light, but reflects green
Plants like the color green
chloroplasts are green
- 5. Multiple Choice
What are the reagents (reactants) of cellular respiration?
carbon dioxide, water and ATP
carbon dioxide, water and sunlight
glucose and oxygen
glucose and water
- 6. Multiple Choice
Which cell part (organelle) is responsible for cellular respiration?
chloroplast
nucleus
ribosomes
mitochondria
- 7. Multiple Choice
What are the products of cellular respiration
carbon dioxide, water and ATP
glucose and oxygen
carbon dioxide, water and sunlight
glucose, water and ATP
- 8. Multiple Choice
Which answer has the correct flow of energy in the Cell Energy Cycle?
sunlight, heat, glucose, cell activity, ATP
sunlight, glucose, ATP, cell activity, heat
glucose, cell activity, heat, ATP, sunlight
glucose, ATP, sunlight, heat, cell activity
- 9. Multiple Choice
What does 'conservation of energy' mean?
We can conserve energy by turning off lights when we leave the room.
We conserve energy by driving electric cars.
When energy is conserved we don't need as much energy.
Energy changes form, but never goes away
- 10. Multiple Choice
Which statement best describes 'conservation of matter'?
Molecules change, but matter is not created or destroyed.
What's the matter? I don't know - what's a matter' you?
Matter is created or destroyed when molecules are made or broken.
Atoms change, but molecules never do.
- 11. Multiple Choice
Why is the Cell Energy Cycle called a cycle?
Sunlight goes in, but ATP comes out.
If you look at the drawing sideways, it looks like a bicycle.
Photosynthesis makes glucose, then cellular respiration breaks the glucose to make ATP.
The same atoms are used over and over.
- 12. Multiple Choice
How are the products of photosynthesis related to the reagents of cellular respiration?
The reagents of cellular respiration become the products of photosynthesis.
The products of photosynthesis are the reagents of cellular respiration.
One has sunlight and the other has ATP.
The products of photosynthesis are made during cellular respiration
- 13. Multiple Choice
Mark ALL answers that might describe what glucose does for living things.
Chemical energy
Food energy
Energy is stored like a battery
Makes soft drinks taste sweet.
- 14. Multiple Choice
A chemical reaction is when....
Atoms are re-arranged to make new molecules.
Molecules are re-arranged to make new atoms.
When ice melts and becomes water.
Water is boiled to make steam (a gas)
- 15. Multiple Choice
Matter is conserved...
...only if we are very careful.
...when any chemical reaction happens.
...when we keep things tightly sealed.
...only during photosynthesis and cellular respiration.
- 16. Multiple Choice
Select ALL answers that represent forms of energy.
Sunlight
A car
Wood
An apple
ATP
- 17. Multiple Choice
Select the answer that does NOT represent a form of energy.
glucose
Water
oxygen
carbon dioxide
- 18. Multiple Choice
What does ATP stand for?
adeline triphosphate
adenosine triphosphate
adenosine tophosphate
adenosine diphosphate
- 19. Multiple Choice
Select all cell activities that ATP can be used for:
Making new cells
Making proteins
Digesting food for energy
Moving muscles
In brain cells for thinking.
- 20. Multiple Choice
Why do we need 6 carbon dioxides to make just 1 glucose?
Making glucose is hard work.
The 'Rule of 6' requires 6 of each molecule.
Glucose has 6 carbons, but carbon dioxide only has 1 carbon atom.
Some carbon atoms are lost or destroyed when glucose is made so we need extras.
- 21. Multiple Choice
Why do plants need mitochondria?
They don't, they make their own food.
Only animals need mitochondria to make ATP. Plant use sunlight for food.
Plants cannot use light as energy for cellular processes.
Plants use mitochondria to turn light energy into glucose.
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