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100 200 400 300 400 Photosy- nthesis RequirementsLR/DRImpacts 300 200 400 200 100 500 100
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Row 1, Col 1 What is an autotroph? Give an example. Uses light for energy. Ex plants
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1,2 What are three of the six requirements. ATP, NADPH, sunlight, H2O, CO2, pigments
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1,3 What are the names of the two reactions? Provide one synonym for each. Light (dependent) reaction AND dark reaction OR light independent OR calvin cycle
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1,4 What does the burning of fossil fuels release? What happens as a result of this to our environment? Carbon dioxide; global warming
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2,1 What is the equation for Photosynthesis? 6CO 2 + 6H 2 O (sunlight/chlorophyll) C 6 H 12 O 6 + 6O 2
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2,2 What does ROYGBIV stand for? Use this to explain white light. Red, orange, yellow, green, blue, indigo/violet; white light includes all colors of the visible spectrum
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2,3 Plants gather the suns energy with energy-absorbing molecules called what? What is the first step of photosynthesis? Pigments/chlorophyll; light reaction (sunlight absorbed)
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2,4 What are 2 of the 4 things that influence the rate of photosynthesis? Light, carbon dioxide, temperature, water
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3,1 Where does the Light Reactions happen? Where does the Dark Reactions happen? LR = thylakoid; DR = stroma
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3,2 Explain how ATP and ADP work. Which one provides cellular energy? How is their structure similar/different? ATP is cellular energy. Has one more phosphate, when the bond is broken energy is released and ADP results
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3,3 Label using LightRxn, DarkRxn, sunlight, oxygen, water, CO 2, sugars, ATP, NADPH.
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3,4 If something appears white, what is happening in terms of the electromagnetic spectrum? If something appears black? White – reflects ALL colors, black – absorbs ALL colors
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4,1 What is the purpose of photosynthesis? Make food (glucose) for the plant by using inorganic compounds such as CO 2 and H 2 O
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4,2 Draw a chloroplast and label the three parts. Granum, thylakoid, stroma (check drawing).
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4,3 Describe the steps of the light reaction. What are the reactants and products where do they go. Light + water O2 (released), ATP + NADPH (to dark reaction)
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4,4 What is the function of NADPH? To shuttle electrons from the light reactions to the dark reactions
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5,1 Explain why plants change color in the autumn? Sunlight/weather chlorophyll molecules that absorbs light and gives leaves their green color, begin to degrade. Without chlorophyll, the other pigments such as carotenoid (reflects red/orange) shine through.
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5,2 In the following food chain, which would be the producer, primary consumer, and secondary consumer? Plant mouse snake hawk Plant = producer, mouse = primary, snake = secondary
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5,3 Describe how the LR and DR work together. Why is the sun so important to Photosynthesis? Light reactions make ATP and NADPH that fuel the Dark reactions to make glucose.
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5,4 If CO 2 were removed from a plants environment, what would happen to its production of glucose? No glucose would be made
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