6.1.1 Process of Photosynthesis

• Chlorophyll is a green pigment found in chloroplasts.

  True
• The light-independent reactions, also known as the Calvin Cycle, occur in the stroma
• Chlorophyll absorbs sunlight during the light-dependent reactions.


  True
• The Calvin Cycle occurs in the stroma of the chloroplast.


  True
• Some G3P molecules are used to regenerate RuBP in the Calvin Cycle.


  True
• Photosynthesis converts carbon dioxide and water into glucose and oxygen
• What is the primary role of chlorophyll in photosynthesis?

  Absorb sunlight
• Steps of the light-dependent reactions

  1️⃣ Chlorophyll absorbs sunlight

  2️⃣ Electrons are excited to a higher energy level

  3️⃣ ATP and NADPH are generated

  4️⃣ Water is split to release oxygen
• Which molecule combines with carbon dioxide during carbon fixation in the Calvin Cycle?

  RuBP
• The light-independent reactions, also known as the Calvin Cycle, occur in the stroma of the chloroplast.
• Steps of the Calvin Cycle in the correct sequence:

  1️⃣ Carbon fixation

  2️⃣ Reduction

  3️⃣ Regeneration
• In carbon fixation, carbon dioxide combines with RuBP to form an unstable six-carbon molecule, which breaks down into two molecules of 3-PGA.
• What are the two main products of photosynthesis?

  Glucose and oxygen
• What is the role of water in photosynthesis?

  Water is regenerated
• Sunlight provides the energy required to convert water and carbon dioxide into glucose and oxygen
• What is released as a byproduct during photosynthesis?

  Oxygen
• What energy carriers are generated during the light-dependent reactions?

  ATP and NADPH
• What does carbon dioxide combine with during carbon fixation in the Calvin Cycle?

  RuBP
• What is the final product of the Calvin Cycle?

  Glucose
• Sunlight provides the energy required to drive the chemical reactions of photosynthesis.


  True
• Chlorophyll is a green pigment found in the chloroplasts
• Water is split during photolysis to replenish electrons in chlorophyll.


  True
• Each molecule of 3-PGA is converted into G3P using energy from ATP and NADPH
• What molecule does carbon dioxide combine with during carbon fixation in the Calvin Cycle?

  RuBP
• Where does the Calvin Cycle take place in the chloroplast?

  Stroma
• What type of molecule is RuBP?

  Five-carbon molecule
• Glucose, one of the main products of photosynthesis, is a sugar that stores energy for the plant.
• Oxygen produced during photosynthesis supports cellular respiration.
• What is the role of chlorophyll in photosynthesis?

  Absorbs sunlight
• Steps of the light-dependent reactions in photosynthesis

  1️⃣ Chlorophyll absorbs sunlight

  2️⃣ Electrons are excited to a higher energy level

  3️⃣ ATP and NADPH are generated

  4️⃣ Water is split in photolysis to release oxygen
• The light-dependent reactions occur in the thylakoid
• Water is split during photolysis to replenish electrons in chlorophyll and release oxygen
• Each molecule of 3-PGA is converted into G3P using energy from ATP and NADPH
• What are the three key reactants of photosynthesis?

  Sunlight, water, carbon dioxide
• Without chlorophyll, photosynthesis could not take place.


  True
• Steps of the Calvin Cycle

  1️⃣ Carbon fixation

  2️⃣ Reduction

  3️⃣ Regeneration
• Some G3P molecules are used to regenerate RuBP, allowing the Calvin Cycle to continue.


  True
• ATP and NADPH are used to convert 3-PGA into G3P during the reduction step of the Calvin Cycle.


  True
• Carbon dioxide is fixed into glucose during the Calvin Cycle.


  True
• The Calvin Cycle uses ATP and NADPH generated during the light-dependent reactions.


  True