Photosynthesis, Cellular Respiration, Carbon Cycle

Why are plants considered producers in an ecosystem?

• They release oxygen, which everyone needs to survive.

• They produce food through photosynthesis.

• They produce ATP through cellular respiration.

• They release chemical energy in the form of carbon dioxide.

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Why is cellular respiration necessary for all organisms?

• It releases useful chemical energy for cell functions.

• It expels harmful carbon dioxide from the lungs of all organisms.

• It brings oxygen into the body, avoiding suffocation.

• It produces glucose for all cells to use.

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How do photosynthesis and cellular respiration demonstrate the law of conservation of mass?

• Sunlight is converted into sugar, converting energy into mass.

• The carbon in photosynthesis converts into oxygen for respiration.

• The amount of energy absorbed from the sun equals the amount of energy stored in sugar.

• The atoms involved in the reactions get recycled.

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Which of the following claims is NOT true about the carbon cycle?

• Carbon atoms are recycled through living and nonliving processes.

• Carbon gets changed into other atoms, like oxygen, through chemical reactions.

• More processes put carbon into the atmosphere than take it out.

• The amount of carbon in the world is not changed by the cycle of carbon in the environment.

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In which way are photosynthesis and cellular respiration different?

• Cellular respiration stores ATP, while photosynthesis releases ATP.
• Cellular respiration produces oxygen, while photosynthesis uses oxygen.
• Photosynthesis releases energy, while cellular respiration stores energy.
• Photosynthesis uses carbon dioxide, while cellular respiration produces carbon dioxide.

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Which organism go through cellular respiration?

• animals

• plants

• both animals and plants

• none

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Cellular Respiration occurs in what cell organelle?

• chloroplast

• cytoplasm

• mitochondria

• animal

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Select ALL the products of Cellular Respiration? *clue: 3*

• oxygen

• glucose

• carbon dioxide

• water

• ATP (energy)

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What happens to your breathing rate when you exercise?

• It increases
• It decreases
• It stays the same

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True or False: Only animals can undergo Cellular Respiration.

• True

• False

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