27-36 Flashcards
Photosynthesis occurs in 2 stages. Name each stage and where they take place.
Stage: light-dependent reactions and the Calvin cycle
Place: thylakoid membrane
The two reactants of photosynthesis are carbon dioxide and water. In which reaction is each used?
the products of cellular respiration, carbon dioxide and water, are the reactants in photosynthesis.
What is the purpose of the light dependent reaction?
is to convert solar energy into chemical energy in the form of NADPH and ATP
What happens to the high energy electrons that are produced in photosystem 1?
the light dependent reactions use energy from the sunlight to produce oxygen and convert ADP and NADP into the energy.
What is the name of the enzyme in the thylakoid membrane that is used to produce ATP?
ATP synthase
Where does the Calvin cycle take place?
takes place in the stroma of chloroplast in photosynthetic organisms
explain the 3 factors that affect the rate of photosynthesis.
light intensity, carbon dioxide concentration and temperature. Without enough light, a plant cannot photosynthesise very quickly, even if there is plenty of water and carbon dioxide.
What powers the rotation of the ATP synthase molecule?
The hydrolysis
What splits off mid-cycle in the Calvin cycle to create sugar molecules?
2 of the 12 3-carbon molecules
What is the overall purpose of the Calvin cycle?
to make organic products plants need, using the products from the Light Reactions of photosynthesis (ATP and NADPH)
