Unit 3.2 - Processes of Life

Which pair of graphs show how the rate of photosynthesis is impacted by the amount of light and production of oxygen?

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SC.8.L.18.1

Which of the following is needed in order for an organism to undergo photosynthesis?

• oxygen

• glucose

• light energy

• chemical energy

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SC.8.L.18.1

How would an increase in water affect a substance produced by photosynthesis?

• increase glucose

• decrease oxygen

• increase light energy

• decrease carbon dioxide

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SC.8.L.18.1

Which of the following is needed in order for an organism to undergo cellular respiration?

• water

• oxygen

• light energy

• carbon dioxide

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Which of the following could an animal do to obtain a substance needed for cellular respiration?

• eat food

• drink water

• exhale oxygen

• stand in the sun

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SC.8.L.18.2

The image shows the carbon cycle.

Which letter represents carbon being released through cellular respiration?

• C

• D

• E

• G

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SC.8.L.18.3

Which processes in the carbon cycle would add carbon to the atmosphere?

• evaporation and decomposition

• photosynthesis and combustion

• cellular respiration and combustion

• photosynthesis and cellular respiration

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SC.8.L.18.3

A plant was placed in an environment where the oxygen was removed for a week. What would happen to the plant?

• Photosynthesis would increase.

• Photosynthesis would decrease.

• Cellular Respiration would increase.

• Cellular Respiration would decrease.

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SC.8.L.18.1

SC.8.L.18.2

During cellular respiration, an organism may start with 6 grams of material. Based on the Law of Conservation of Mass, how many grams of materials will be produced?

• 0 grams

• 6 grams

• 12 grams

• 18 grams

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SC.8.L.18.4

Which of the following describes how cellular respiration follows the Law of Conservation of Energy?

• The energy that goes into the process of cellular respiration is lost to create new substances.

• The total amount of energy needed to complete the process of cellular respiration remains the same.

• The total amount of energy needed to complete the process of cellular respiration decreases over time.

• The energy that goes into the process of cellular respiration is used up to create new energy that is stored in the new substances.

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