2. Hosted by Ms. Pitt

3. 100 200 400 300 400 Photosy- nthesis RequirementsLR/DRImpacts 300 200 400 200 100 500 100

4. Row 1, Col 1 What is an autotroph? Give an example. Uses light for energy. Ex  plants

5. 1,2 What are three of the six requirements. ATP, NADPH, sunlight, H2O, CO2, pigments

6. 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

7. 1,4 What does the burning of fossil fuels release? What happens as a result of this to our environment? Carbon dioxide; global warming

8. 2,1 What is the equation for Photosynthesis? 6CO 2 + 6H 2 O (sunlight/chlorophyll)  C 6 H 12 O 6 + 6O 2

9. 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

10. 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)

11. 2,4 What are 2 of the 4 things that influence the rate of photosynthesis? Light, carbon dioxide, temperature, water

12. 3,1 Where does the Light Reactions happen? Where does the Dark Reactions happen? LR = thylakoid; DR = stroma

13. 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

14. 3,3 Label using LightRxn, DarkRxn, sunlight, oxygen, water, CO 2, sugars, ATP, NADPH.

15. 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

16. 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

17. 4,2 Draw a chloroplast and label the three parts. Granum, thylakoid, stroma (check drawing).

18. 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)

19. 4,4 What is the function of NADPH? To shuttle electrons from the light reactions to the dark reactions

20. 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.

21. 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

22. 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.

23. 5,4 If CO 2 were removed from a plants environment, what would happen to its production of glucose? No glucose would be made