Photosynthesis Calvin Cycle

What is the primary product of the Calvin Cycle?

• Glyceraldehyde 3-phosphate (G3P)

• Glucose

• ATP

• NADPH

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

What is the purpose of RuBisCo in the Calvin Cycle?

• To fix carbon dioxide onto Ribulose Bisphosphate (RuBP)

• To convert G3P into glucose

• To produce ATP and NADPH

• To split water molecules

Tags

NGSS.HS-LS2-5

Why do plants need to regenerate RuBP in the Calvin Cycle?

• To continue the cycle and fix more carbon dioxide

• To produce oxygen as a byproduct

• To convert G3P into glucose

• To release excess energy

How does carbon dioxide enter and oxygen exit the leaves of a plant?

• Through tiny pores called stomata

• Through the roots via xylem

• Through the chloroplasts

• Through the cell walls

Which enzyme is crucial for carbon fixation in the Calvin cycle?

• ATP synthase

• Rubisco

• NADP+ reductase

• Cytochrome c

What is the first stable product of carbon fixation in the Calvin cycle?

• Glucose

• 3-phosphoglycerate (3-PGA)

• Ribulose-1,5-bisphosphate (RuBP)

• Glyceraldehyde-3-phosphate (G3P)

In the Calvin Cycle, carbon from CO2 is added to one molecule of RuBP to create _________.

• RUDP

• An Unstable 6 Carbon Molecule which breaks down into 12 PGA molecules

• PGAL

• 2 3-carbon molecules

Tags

NGSS.HS-LS2-5

Energy for the Calvin cycle is supplied by which of the following from the light reactions?

• Carbon dioxide and water

• ATP and water

• ATP and NADPH

• Carbon dioxide and ATP

Tags

NGSS.HS-LS1-5

Carbon used in the Calvin Cycle (light independent reactions) comes from what molecule from the atmosphere?

• Oxygen

• Methane

• Carbon Dioxide

• Water

Tags

NGSS.HS-LS2-5

How many turns does the Calvin cycle do?

• 1

• 2

• 3

• 4