Photosynthesis: Light Reactions

What is the overall equation for photosynthesis?

• C6H12O6 + O2 --> 6CO2 + 6H2O + ATP

• Light + water + oxygen --> sugar + carbon dioxide

• Light + 6H2O + 6CO2 -->

  C6H12O6 + O2

• 2H2O + Light --> 4H+ + 4e- + O2

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Where in the cell does photosynthesis happen?

• The Nucleus

• The Chloroplast

• The Ribosome

• The Mitochondria

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What is the energy source for photosynthesis?

• Light

• ATP

• Electrons

• Glucose

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NGSS.HS-LS1-5

What are the reactants for the light reactions?

• ATP and Glucose

• Electrons and Carbon Dioxide

• Thylakoids and Chloroplasts

• Water and Light

What are the products for the Light Reactions?

• Oxygen, ATP, and NADPH

• ATP, NADH, and FADH

• NADPH, Water, and Carbon Dioxide

• Glucose and Oxygen

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NGSS.HS-LS1-5

Which product of the light reactions does not go on to the Calvin Cycle?

• Oxygen

• ATP

• NADPH

• They all go on to the Calvin Cycle

What’s the name of the pigment that absorbs light in photosynthesis? 

• Carotene

• Thylakoid

• Chlorophyll

• Chloroplast

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What colors of light are absorbed the most/best in photosynthesis?

• UV and IR

• Green and Orange

• Violet and Yellow

• Blue and Red

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What color of light is not absorbed in photosynthesis?

• Yellow

• Green

• X-Rays

• Red

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What is the name of the structure in the chloroplast that the light reactions take place at?

• Matrix

• Stroma

• Thylakoid

• Granum

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