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Photosynthesis Test

Test Description: Utah Photosynthesis 8.3.1

Instructions: Answer all questions to get your test result.

1) An aquatic plant is placed under water and bubbles form on the leaves and stem. What do the bubbles indicate? The plant is

Ausing oxygen Bproducing carbon dioxide Cusing carbon dioxide Dproducing oxygen

2) Which of the following depends on solar energy?

Apeople using sugar Benergy being released by a volcano Cplants making sugar Da plant using energy

3) Scientists agree that plants get their “food” from the air. Why do scientists accept something that does not appear to be true?

AThey have interviewed farmers in many places on Earth. BThey have evidence from experiments with plant growth CThey have studied plants growing on other planets DThey found information on plant growth in ancient books.

4) In an investigation two of the same plants are grown with the same amount of water. One plant is put in the window so the sun can hit it, one is in the basement where there is not sun. Why won’t the one in the basement grow?

AThere is not light energy BIt has no water CThere is no CO2 DThere is no chemical energy

5) What type of energy does a plant store as it absorbs solar energy?

Amechanical energy Bchemical energy Celectrical energy Dsound energy

6) 6. What resources must a plant have for photosynthesis (the reactants)?

AGlucose and Oxygen BSun, water, and carbon dioxide(CO2) CSun and CO2 DCO2 and glucose

7) What are the products of photosynthesis?

AATP and water BSun and water CGlucose (C6H12O6) and oxygen. DCO2 and glucose

8) In a closed terrarium, more photosynthesis is taking place than respiration. Which gas would you expect to increase?

ACarbon Dioxide BOxygen CAir DNitrogen

9) Where does most of the matter in plants come from?

AOxygen BSunlight CCarbon dioxide (CO2) and water DThe soil

10) 10. How does photosynthesis help humans survive?

APhotosynthesis gives us oxygen to breathe and glucose for energy BPhotosynthesis gives us carbon dioxide to breathe and glucose for energy CHumans can eat animals so we don’t need photosynthesis DPhotosynthesis gives us light energy

11) What is the main energy source to power photosynthesis?

AWater BGlucose CSunlight DCarbon dioxide

*select an answer for all questions

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