Honors Biology Photosynthesis

Which of the following is the correct equation for PHOTOSYNTHESIS?

• CO₂ + light + H₂O --> O₂ + Sugar

• CO₂ + sugar + H₂O --> O₂ + light

• _O2 + light + H₂O --> CO₂ + Sugar

• CO₂ + O₂ + H₂O --> Light+ Sugar

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Which plant organelle transforms light into glucose to use as food?

• Mitochondria

• Vacuoles

• Chloroplasts

• Nucleus

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The Calvin Cycle occurs in the

• Thylakoid

• Grana

• Inner membrane of chloroplast

• Stroma

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Where do the light reactions happen?

• mitochondria membrane

• thylakoid membrane

• stroma

• central vacuole

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Choose the statement that best describes light reaction.

• It converts CO2 to sugar molecule

• It converts light energy to chemical energy of ATP and NADPH

• It takes place in the stroma

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Where does CO2 enter the leaves through?

• Roots

• Stem

• Chloroplasts

• Stomata

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What is the function of NADPH and ATP?

• They absorb light

• They power the light-dependent reactions

• They are light-reflecting pigments

• They are short term energy carriers

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Which of the following would have the least affect on photosynthetic rate?

• increase the temp from 20 C to 30 C

• increasing the CO2 from 400 ppm to 600ppm

• increasing the light intesity from 40 Watts to 60 Watts

• increasing the amount of O2 from 20% to 30% in the air

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Which plant would have the most oxygen produced in 1 hour?

• plant given red light only

• plant given blue light only

• plant given white light

• plant given green light only

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What is one function of the other pigments  besides chlorophyll, in the chloroplast?

• to block damaging wavelengths of light

• to absorb different wavelengths than the chloroplasts

• to provide different colors to the leaves

• to transfer energy to a separate photosystem beside the one using chlorophyll a and b.

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