Honors Biology Photosynthesis

The enzyme responsible for Carbon Fixation in Photosynthesis is

• RuBisCo

• PEP Carboxylase

• Hexokinase

• Pyruvate DeHydrogenase

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What is the first stage of the Calvin Cycle?

• Carbon fixation

• Reduction

• Regeneration of RUBP

• Primary

If all four plants were watered daily but placed in a closet, receiving no sunlight, what process would NOT occur?

• DNA replication

• Filtration of water through the soil

• Photosynthesis

• Cellular respiration

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Plants can close their stomata when the temperature is hot

• To prevent water loss

• To prevent loss of oxygen

• To prevent loss of carbon dioxide

• To bring in more carbon dioxide

Which of the following is true of the Calvin Cycle?

• carbon dioxide and energy (ATP and NADPH) are used to make sugar

• energy is absorbed from sunlight and converted to chemical energy stored in ATP and NADPH

• Occurs in the thylakoid

• Occurs in the cytoplasm

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The CO₂ used in the Calvin Cycle originates from ___________.

• The light phase

• The breakdown of the remaining G3P's

• Diffusion through the stoma

• Lumen of the Thylakoid

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NGSS.HS-LS2-5

True or False: The Calvin Cycle returns ADP and NADP to the light dependent phase.

• True

• False

Where does dark reaction or light independent specifically occur?

• thylakoid membrane

• Stroma of the chloroplast

• Grana

• nuclear membrane

An enzyme that fixes carbon from atmosphere to convert it to complex macromolecule glucose.

• RuBP (Ribulose bisphosphate)

• RuBisCo (Ribulose Bisphosphate Carboxylase)

• PGA (3-Phosphoglycerate)

• G3P (Glyceraldeyhyde 3-Phosphate)

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NGSS.HS-LS2-5

Most plants appear green because chlorophyll

• absorbs green light.

• absorbs violet light.

• reflects green light.

• does not absorb violet light.