4.1.1 The Photosynthesis Reaction

• Photosynthesis is the process by which green plants and some other organisms use sunlight, water and carbon dioxide to create oxygen and energy-rich organic compounds such as glucose
• Match the reactant with its role in photosynthesis:

  Carbon dioxide ↔️ Source of carbon atoms for glucose

  Water ↔️ Provides hydrogen atoms
• Oxygen is a byproduct of photosynthesis

  True
• Match the product with its function:

  Glucose ↔️ Energy source for plants

  Oxygen ↔️ Essential for respiration
• The balanced equation for photosynthesis shows that carbon dioxide and water are converted into glucose and oxygen.
• What is the balanced equation for photosynthesis?

  $CO₂ +$$H₂O → C₆H₁₂O₆ +$$O₂$
• In photosynthesis, sunlight is captured by specialized organelles called chloroplasts
• What is the definition of photosynthesis?

  Conversion of light energy into chemical energy
• The reactants in the photosynthesis reaction are carbon dioxide and water
• Oxygen produced during photosynthesis is essential for the respiration of many organisms, including humans.


  True
• Chlorophyll captures sunlight and converts light energy into chemical energy.
• What are the two main stages of photosynthesis?

  Light-dependent and light-independent reactions
• What is produced during the light-dependent reactions that is used in the Calvin cycle?

  ATP and NADPH
• The photosynthesis reaction is the reverse of cellular respiration


  True
• The photosynthesis reaction is the reverse of cellular respiration.
• The products of photosynthesis include glucose and oxygen.
• Oxygen released during photosynthesis is essential for aerobic respiration


  True
• Sunlight is the primary source of energy for photosynthesis


  True
• Carbon dioxide and water are the reactants in photosynthesis, which are converted into glucose and oxygen using sunlight energy.


  True
• Match the energy source with its role in photosynthesis:

  Sunlight ↔️ Provides light energy to drive photosynthesis

  Chloroplasts ↔️ Organelles containing chlorophyll that capture sunlight

  Chlorophyll ↔️ Pigment that absorbs sunlight
• The overall chemical reaction of photosynthesis is the reverse of cellular respiration.


  True
• What are the two main products of photosynthesis?

  Glucose and oxygen
• What is the primary energy source for photosynthesis?

  Sunlight
• Chlorophyll absorbs all wavelengths of light equally.

  False
• The light-dependent reactions occur in the thylakoid membranes of chloroplasts.
• The light-independent reactions directly use light energy.

  False