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1. Photosynthesis is:

a. Turning glucose and oxygen into carbon dioxide and water.

b. The process of converting sunlight into glucose.

c. The process of turning a plant green.

d. Taking a picture of a plant.


2. There are two types of reactions in the photosynthesis. They are:

a. White and black reactions.

b. Blue and green reactions.

c. Light and dark reactions.

d. Kreb's cycle.


3. Photosystem is:

a. The process of developing pictures.

b. The cycle used in cellular respiration.

c. The wavelengths of light.

d. A unit of several hundred chlorophyll molecules.


4. Photosynthesis starts:

a. In the mitochondria.

b. When pigments in the plant traps sunlight.

c. When NADPH+ + H is produced.

d. The moon comes up.


5. The dark reaction is also called the

a. Calvin cycle.

b. Kreb's cycle.

c. John's cycle.

d. Schelling's cycle.


6. When an electron is released from the chlorophyll in the light reaction,

a. It is passed along the electron transport chain.

b. It enters the mitochondria.

c. It leaves the cytoplasm.

d. It enters the Calvin cycle.


7. The dark reaction takes place in the:

a. Thylakoid.

b. Stroma.

c. Cristae.

d. Theater.


8. The end products of the light reaction are:

a. CO2 + glucose and water.

b. glucose and oxygen.

c. ATP, NADP+ and O2.

d. ATP, oxygen and NADPH+ + H+..


9. CO2 fixation is:

a. The binding of CO2 and RuBP

b. The release of CO2

c. The binding of water and CO2

d. Repairing a broken CO2 molecule


10. The dark reaction starts off with:

a. CO2 fixation

b. Formation of pyruvic acid

c. Fermentation

d. Combining 2 PGAL into glucose


11. How many PGAL molecules are needed to regenerate the RuBP molecule?

a. C4 photosynthesis

b. 8

c. 9

d. 10


12. Plants in the desert (cactuses) use a different kind of photosynthesis called:

a. C4 photosynthesis.

b. CAM photosynthesis

c. C3 photosynthesis

d. Taking a picture of itself


13. A CAM plant does what in photosynthesis?

a. Absorbs CO2 at night.

b. Keeps its stomata closed during the day so water won't escape.

c. Has CO2 fixation and the Calvin cycle occur at different times of the day.

d. All of the above.


14. The advantage of C4 photosynthesis compared to C3 photosynthesis is that:

a. The number is easier to write.

b. Carbon is released slower.

c. CO2 fixation occurs four times faster than C3.

d. CO2 fixation occurs four times slower than C3.


15. Chemiosmosis is the process of:

a. Chemically changing glucose into water.

b. Changing water into a chemical called carbon monoxide.

c. Creating chemicals by passing through a membrane.

d. The synthesis of ATP during the passage of H+ through a membrane.

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