Study Guide Study Guide Photosynthesis Unit, Photosynthesis Unit, Biology Standard 1fBiology Standard 1f

1. What process is 1. What process is shown in the figure to shown in the figure to the right? the right?

1. What process is 1. What process is shown in the figure to shown in the figure to the right? the right?

PhotosynthesisPhotosynthesis

2. What structure 2. What structure (organelle) is shown (organelle) is shown in the figure to the in the figure to the right?right?

2. What structure 2. What structure (organelle) is shown (organelle) is shown in the figure to the in the figure to the right?right?ChloroplastChloroplast

3. Where, in the 3. Where, in the chloroplast, does the chloroplast, does the light reaction take light reaction take place? place?

3. Where, in the 3. Where, in the chloroplast, does the chloroplast, does the light reaction take light reaction take place? place?

Thylakoid Membrane, BThylakoid Membrane, B

4. Where, in the 4. Where, in the chloroplast, does the chloroplast, does the light-independent light-independent reaction take place?reaction take place?

4. Where, in the 4. Where, in the chloroplast, does the chloroplast, does the light-independent light-independent reaction take place?reaction take place?Stroma, AStroma, A

5. What are the 5. What are the 3 3 reactants (inputs)reactants (inputs) of of photosynthesis?photosynthesis?

5. What are the 5. What are the 3 3 reactants (inputs)reactants (inputs) of of photosynthesis?photosynthesis?

1.1. LightLight

2.2. WaterWater

3.3. COCO22

6. What are the 6. What are the 2 2 products (outputs)products (outputs) of of photosynthesis?photosynthesis?

6. What are the 6. What are the 3 3 products (outputs)products (outputs) of of photosynthesis?photosynthesis?1.1. OxygenOxygen

2.2. SugarsSugars

7. What is the overall 7. What is the overall equation of equation of photosynthesis?photosynthesis?

7. What is the overall 7. What is the overall equation of equation of photosynthesis?photosynthesis?

8. What is another 8. What is another name for the Light name for the Light Phase?Phase?

8. What is another 8. What is another name for the Light name for the Light Phase?Phase?Light Dependent PhaseLight Dependent Phase

Light Dependent ReactionLight Dependent Reaction

Light ReactionLight Reaction

9. What are other 9. What are other names for the Dark names for the Dark Phase? Phase?

9. What are other 9. What are other names for the Dark names for the Dark Phase? Phase? Light INDEPENDENT PhaseLight INDEPENDENT PhaseLight INDEPENDENT ReactionLight INDEPENDENT ReactionDark ReactionDark ReactionCalvin CycleCalvin Cycle

10. ________________ is 10. ________________ is the major light-the major light-absorbing pigment in absorbing pigment in plant photosynthesis. plant photosynthesis.

10._10._CHLOROPHYLL_CHLOROPHYLL_ is is the major light-the major light-absorbing pigment in absorbing pigment in plant photosynthesis. plant photosynthesis.

11. ____________ 11. ____________ (autotrophs/heterotrophs)(autotrophs/heterotrophs) produce the chemical produce the chemical energy they need for energy they need for metabolism through metabolism through photosynthesis.photosynthesis.

11. _____11. _____autotrophsautotrophs_______ _______ produce the chemical produce the chemical energy they need for energy they need for metabolism through metabolism through photosynthesis.photosynthesis.

12. The waste 12. The waste product that is product that is released during released during photosynthesis into photosynthesis into the atmosphere the atmosphere is___________(is___________(carbon carbon dioxide/oxygen/nitrogen)dioxide/oxygen/nitrogen)

12. The waste 12. The waste product that is product that is released during released during photosynthesis into photosynthesis into the atmosphere the atmosphere is_is_oxygenoxygen

13. A student put together two different 13. A student put together two different experimental setups as shown to the left. experimental setups as shown to the left. What might the student be trying to test? What might the student be trying to test? The student is probably trying to test the The student is probably trying to test the effect of ____________ dioxide concentration effect of ____________ dioxide concentration on plants.on plants.

13. A student put together two different 13. A student put together two different experimental setups as shown to the left. experimental setups as shown to the left. What might the student be trying to test? What might the student be trying to test? The student is probably trying to test the The student is probably trying to test the effect of _effect of _CARBON__CARBON__ dioxide concentration dioxide concentration on plants.on plants.

14. If the student placed the 14. If the student placed the experimental setup in the shade experimental setup in the shade for 2 days, what would happen for 2 days, what would happen to the amount of sugar to the amount of sugar produced?________________________produced?________________________

14. If the student placed the 14. If the student placed the experimental setup in the shade experimental setup in the shade for 2 days, what would happen for 2 days, what would happen to the amount of sugar to the amount of sugar produced?_produced?_DECREASEDECREASE________

Fill-in the following paragraph:Fill-in the following paragraph:Biologists generally agree that the process of Biologists generally agree that the process of photosynthesis can be divided into two major reactions. photosynthesis can be divided into two major reactions. These are often referred to as the light and dark These are often referred to as the light and dark reactions. During the light reaction molecules of reactions. During the light reaction molecules of (15)__________ are "split," producing hydrogen atoms and a (15)__________ are "split," producing hydrogen atoms and a gas called (16)__________. During this reaction, extra gas called (16)__________. During this reaction, extra energy is stored in molecules of (17)_____________. The dark energy is stored in molecules of (17)_____________. The dark reaction requires no light because it is powered by the reaction requires no light because it is powered by the energy molecules made in the light reaction. A six-carbon energy molecules made in the light reaction. A six-carbon compound known as (18)_______________ is formed during compound known as (18)_______________ is formed during this reaction.this reaction.

Fill-in the following paragraph:Fill-in the following paragraph:Biologists generally agree that the process Biologists generally agree that the process of photosynthesis can be divided into two of photosynthesis can be divided into two major reactions. These are often referred major reactions. These are often referred to as the light and dark reactions. During to as the light and dark reactions. During the light reaction molecules of (15)__the light reaction molecules of (15)__H2OH2O___ ___ are "split," producing hydrogen atoms and are "split," producing hydrogen atoms and a gas called (16)___a gas called (16)___O2O2____. During this ____. During this reaction, extra energy is stored in reaction, extra energy is stored in molecules of (17)___molecules of (17)___ATP/NADPH____.ATP/NADPH____. The The dark reaction requires no light because it is dark reaction requires no light because it is powered by the energy molecules made in powered by the energy molecules made in the light reaction. A six-carbon compound the light reaction. A six-carbon compound known as (18)__known as (18)__C6H12O6C6H12O6____ is formed ____ is formed during this reaction.during this reaction.

19. Green plants appear green 19. Green plants appear green to human eyes because mainly to human eyes because mainly red and blue wavelengths are red and blue wavelengths are ________________ ________________ (absorbed/reflected), while (absorbed/reflected), while green is __________________ green is __________________ (absorbed/reflected).(absorbed/reflected).

19. Green plants appear green 19. Green plants appear green to human eyes because mainly to human eyes because mainly red and blue wavelengths are red and blue wavelengths are ________________absorbedabsorbed________ while ________ while green is ______green is ______reflectedreflected__________

20. What waste product of 20. What waste product of the light dependent reaction the light dependent reaction of photosynthesis is released of photosynthesis is released and does not participate and does not participate further in photosynthesis? further in photosynthesis? ______________ ______________ (ATP/ NADPH/ H2O/ O2)(ATP/ NADPH/ H2O/ O2)

20. What waste product of 20. What waste product of the light dependent reaction the light dependent reaction of photosynthesis is released of photosynthesis is released and does not participate and does not participate further in photosynthesis? further in photosynthesis? O2O2

21. In the diagram to the 21. In the diagram to the right, which letter shows the right, which letter shows the part of the chloroplast part of the chloroplast where the Calvin where the Calvin cycle takes place? _________cycle takes place? _________

21. In the diagram to the 21. In the diagram to the right, which letter shows the right, which letter shows the part of the chloroplast part of the chloroplast where the Calvin where the Calvin cycle takes place? cycle takes place? STROMA, ASTROMA, A

22. In this diagram of 22. In this diagram of a chloroplast, which a chloroplast, which letter is pointing to letter is pointing to the stroma? _____ the stroma? _____

22. In this diagram of 22. In this diagram of a chloroplast, which a chloroplast, which letter is pointing to letter is pointing to the stroma? _the stroma? _AA_ _

23. The cells in _____________ 23. The cells in _____________ (grass / muscles/ apples / (grass / muscles/ apples / potatoes) would have more potatoes) would have more chloroplasts than cells in the chloroplasts than cells in the

others.others.

23. The cells in 23. The cells in grassgrass would would have more chloroplasts than have more chloroplasts than

cells in the others.cells in the others.

24. In addition to ATP, 24. In addition to ATP, _______________ _______________ (water/NADPH/glucose) is (water/NADPH/glucose) is used as a used as a source of source of energyenergy in the in the photosynthesis reaction.photosynthesis reaction.

24. In addition to ATP, 24. In addition to ATP, ________NADPHNADPH____ is used as ____ is used as a a source of energysource of energy in the in the photosynthesis reaction.photosynthesis reaction.

True or False?True or False?25. 25. ________Photosynthesi________Photosynthesis takes place at a s takes place at a faster rate in green faster rate in green light. light.

True or False?True or False?25. 25. ________FF___Photosynthesi___Photosynthesis takes place at a s takes place at a faster rate in green faster rate in green light.light.

True or False?True or False?26. ________ 26. ________ Photosynthesis Photosynthesis converts light energy converts light energy into chemical energy.into chemical energy.

True or False?True or False?26. _26. _TT_ _ Photosynthesis Photosynthesis converts light energy converts light energy into chemical energy.into chemical energy.

True or False?True or False?27. __ Photosynthesis 27. __ Photosynthesis converts chemical converts chemical energy into light energy into light energy.energy.

True or False?True or False?27. _27. _FF_ _ Photosynthesis Photosynthesis converts chemical converts chemical energy into light energy into light energy.energy.

True or False?True or False?28. ________ 28. ________ Photosynthesis can Photosynthesis can be performed in total be performed in total darkness.darkness.

True or False?True or False?28. __28. __T/FT/F____ ____ Photosynthesis can Photosynthesis can be performed in total be performed in total darkness.darkness.

This isn’t a fair question, because we This isn’t a fair question, because we know the Calvin cycle happens at night. know the Calvin cycle happens at night. Plants need some sort of light.Plants need some sort of light.

29. ___________________ 29. ___________________ are organisms that are organisms that cannot make their cannot make their own food and must own food and must obtain energy from obtain energy from the foods they eat. the foods they eat.

29. _29. _HETEROTROPHSHETEROTROPHS_ _ are organisms that are organisms that cannot make their cannot make their own food and must own food and must obtain energy from obtain energy from the foods they eat. the foods they eat.

30. The figure to the right shows 30. The figure to the right shows how a student collected the gas how a student collected the gas produced (given off) from a produced (given off) from a plant in bright sunlight at a plant in bright sunlight at a temperature of 27 oC. The gas temperature of 27 oC. The gas being collected is probably being collected is probably ________________.________________.

30. The figure to the right shows 30. The figure to the right shows how a student collected the gas how a student collected the gas produced (given off) from a produced (given off) from a plant in bright sunlight at a plant in bright sunlight at a temperature of 27 oC. The gas temperature of 27 oC. The gas being collected is probably being collected is probably ______OXYGENOXYGEN__.__.

31. What is a 31. What is a granum?granum?

31. What is a 31. What is a granum?granum?A stack of thylakoids, BA stack of thylakoids, B

32. Where in the 32. Where in the chloroplast is chloroplast is chlorophyll found? chlorophyll found?

32. Where in the 32. Where in the chloroplast is chloroplast is chlorophyll found? chlorophyll found? Thylakoid MembraneThylakoid Membrane

33. In the diagram to the 33. In the diagram to the right, the plant was exposed right, the plant was exposed to several different colors of to several different colors of light. If all the light light. If all the light intensities were the same, intensities were the same, under which color of light under which color of light would OXYGEN be produced would OXYGEN be produced at the SLOWEST rate?at the SLOWEST rate?

33. In the diagram to the 33. In the diagram to the right, the plant was exposed right, the plant was exposed to several different colors of to several different colors of light. If all the light light. If all the light intensities were the same, intensities were the same, under which color of light under which color of light would OXYGEN be produced would OXYGEN be produced at the SLOWEST rate?at the SLOWEST rate?

GREENGREEN

Plants mostly REFLECT green light.Plants mostly REFLECT green light.

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