Photosynthesis Quiz

1.During photosynthesis, plants absorb light energy from the

Sun and convert it into chemical energy in the form of glucose. Which

compounds combine in the presence of sunlight to form glucose?

• carbon dioxide (CO2) and hydrogen (H2)

• oxygen (O2) and carbon dioxide (CO2)

• carbon dioxide (CO2) and water (H2O)

• oxygen (O2) and water (H2O)

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NGSS.HS-LS1-5

Living organisms and artificial devices both use and store energy with various methods and structures. Which of the following is MOST like a green leaf during the daytime?

• a person running along a track

  
  

• a solar collector charging a battery

• a person eating a hamburger at lunch time

• a wind turbine generating electric current as it spins

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NGSS.HS-LS2-5

A blueberry bush uses energy from the Sun to make carbohydrates. Which set of energy transformations BEST describe this process?

• radiant energy → chemical energy → nuclear energy

• radiant energy → nuclear energy → chemical energy

• nuclear energy → radiant energy → chemical energy

• nuclear energy → chemical energy → radiant energy

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The following reaction occurs in plants.

CO2+water + sunlight→O2+water+sugar

This reaction is beneficial to plants because it

• results in a net increase in the mass of the atoms.

• produces chemical building blocks for proteins.

• keeps ultraviolet light from damaging their cells

• provides chemical energy to the cells.

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NGSS.HS-LS2-5

Which BEST describes the role of chlorophyll in energy conversion?

• Chlorophyll converts chemical energy into radiant energy.

• Chlorophyll excites photons of light energy and stores them.

• Chlorophyll converts oxygen and nutrients in order to drive metabolic activities.

• Chlorophyll absorbs light and converts it to chemical energy.

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NGSS.HS-LS1-5

Plants make sugars in the presence of sunlight in a process called photosynthesis. What form of carbon do the plants take in for this process?

• glucose molecule

• carbon dioxide

• single carbon atoms

• complex organic compounds

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NGSS.HS-LS2-5

When plants undergo photosynthesis, a reaction produces sugar, oxygen, and water. During respiration, stored energy from the products of photosynthesis is converted to usable energy. In what form is the energy stored prior to use in respiration?

• chemical energy

• kinetic energy

• light energy

• heat energy

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During the light reactions of photosynthesis, energy is stored in the compounds ATP and NADPH. A second set of reactions uses this stored energy to produce vital compounds such as glucose. This second set of reactions involves a biochemical pathway called

• the Calvin cycle.

• carbon fixation.

• respiration.

• transpiration

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Which organelle performs PHOTOSYNTHESIS?

• Chloroplast
• Mitochondria

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NGSS.HS-LS2-5

Which of the following is the correct equation for PHOTOSYNTHESIS?

• CO₂ + light + H₂O --> O₂ + Sugar
• CO₂ + sugar + H₂O --> O₂ + light
• _O2 + light + H₂O --> CO₂ + Sugar
• CO₂ + O₂ + H₂O --> Light+ Sugar

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NGSS.HS-LS2-5