Study Guide for Unit 6-Living Systems

What does the Law of Conservation of Energy state?

• Energy cannot be created or destroyed.

• Energy is always lost in transformations.
• Energy can only be created from matter.
• Energy can be created and destroyed.

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What does the Law of Conservation of Mass/Matter state?

• Mass increases when energy is added.
• Mass can be created but not destroyed.
• Matter can disappear in a closed system.
• Mass cannot be created or destroyed.

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What role does the deer play in the carbon cycle?

• Deer produce oxygen through photosynthesis.
• Deer move carbon through eating and waste.

• Deer have no impact on the carbon cycle.
• Deer only store carbon in their bodies without any other role.

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Describe the process of photosynthesis.​ ​

• Photosynthesis uses sunlight to convert water and CO2 into glucose.

• Photosynthesis produces only carbon dioxide and water as byproducts.
• Photosynthesis occurs only at night when plants absorb carbon dioxide.
• Photosynthesis is the process of animals converting food into energy.

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As a sunflower uses photosynthesis to produce energy in the form of glucose, what is MOST of this energy used for?

• Photosynthesis in other plants.
• Producing oxygen for the environment.
• Growth and development.
• Storing energy as fat.

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What organelle is responsible for photosynthesis?

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What type of cells have chloroplast?

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What must other organisms do instead of photosynthesis?

• Other organisms must consume plants, animals or both.

  
  

• Other organisms must decomposition plants, animals, or both.

• Other organisms must ferment plants, animals, or both.

• Other organisms must use nitrogen fixation on plants, animals, or both.

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Look at the graphic to the left. Explain the connection between photosynthesis and cellular respiration in terms of products and reactants.

• Photosynthesis and cellular respiration use each other's products as reactants.

• Cellular respiration produces glucose and oxygen, which are used in photosynthesis.
• Photosynthesis consumes carbon dioxide and water to produce glucose and nitrogen.
• Photosynthesis and cellular respiration are unrelated processes with no exchange of products.

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Where do producers obtain the carbon atoms that are used to make glucose (C₆H₁₂O₆) molecules produced in the chemical reaction of photosynthesis?

• Nitrogen (N₂) from the air.
• Carbon dioxide (CO₂) from the atmosphere.
• Oxygen (O₂) from the atmosphere.
• Glucose (C₆H₁₂O₆) from the soil.

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