Photosynthesis & Cellular Respiration

The diagram depicts a simple carbon cycle. How does the carbon cycle represent an interaction between abiotic and biotic factors? 

•  CO2 is a biotic factor that is an essential carbon source for abiotic factors such as plants. 
• CO2 is a biotic factor that is used in the process of photosynthesis by abiotic factors such as plants. 
• CO2 is an abiotic factor that is used in the process of cellular respiration by biotic factors such as animals. 
•  CO2 is an abiotic factor that is an essential carbon source for biotic factors such as plants. 

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Which two processes are major contributors in the movement of carbon in the carbon cycle? 

• respiration and evaporation 
• respiration and photosynthesis 
• condensation and evaporation 
• photosynthesis and condensation 

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Which of the following are the reactants of photosynthesis? 

• carbon dioxide (CO2) and water (H2O) 
• oxygen (O2) and water (H20) 
• water (H20) and glucose (C6H12O6) 
• glucose (C6H12O6) and carbon dioxide (CO2) 

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When athletes run long distances, their muscles become fatigued due to a lack of oxygen. Which process helps athletes generate more energy to continue running? 

• aerobic respiration 
• anaerobic respiration 
• chemosynthesis 
• photosynthesis 

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Which activity of primary consumers returns carbon to the atmosphere? 

• the breakdown of carbon compounds during the process of digestion 
• the release of carbon dioxide during the process of respiration 
• the generation of carbon­containing waste that is used by decomposers 
• the transfer of carbon in various forms when food is consumed by consumers 

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What is the main source of energy for photosynthesis? 

• carbon dioxide 
• sunlight
  
• water
  
• glucose 

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What is the function of the organelle pictured below? 

• produce ATP for the cell
  
• produces proteins
  
• storage of food or water
  
• capture's sun's energy to make sugars 

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The diagram shows the process of cellular respiration both in the presence and in the absence of oxygen.  What can be concluded from the diagram? 

• Fermentation is more efficient because it produces a total of 34 ATP molecules. 
• Aerobic respiration is more efficient because it produces a total of 36 ATP molecules. 
• Aerobic respiration produces only 2 ATP molecules more than fermentation. 
• Fermentation and aerobic respiration both produce the same amount of ATP molecules. 

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The diagram shows the processes of photosynthesis and cellular respiration in relation to each other.  Which statement correctly describes the relationship between photosynthesis and cellular respiration? 

• The reactants and products of both processes are the same. 
• Photosynthesis and cellular respiration occur in all organisms. 
• Products of photosynthesis form the reactants for cellular respiration. 
• All ATP produced during photosynthesis is utilized during cellular respiration. 

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A green pigment that traps energy from the sunlight is ______. 

•   ATP 
• carotenoid 
• thylakoid membranes 
• chlorophyll 

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