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- 1. Multiple Choice
During photosynthesis, cells capture the energy of sunlight using __________________, which is a type of __________________. Photosynthesis also relies on a compound called ___________________, which is an electron______________________ that accepts and transfers high-energy electrons.
stroma, carbohydrate, glucose, sink
thylakoid, hormone, ATP synthase, donor
NADP, nucleotide, DNA, source
chlorophyll, pigment, NADP, carrier
- 2. Multiple Choice
During photosynthesis, carbon dioxide and _______________________are converted through a series of reactions into two products: high-energy _______________________ and ______________________ gas.
oxygen, sunlight, oxygen
methane, proteins, carbon monoxide
water, sugars, oxygen
sodium chloride, hydrogen, carbon dioxide
- 3. Multiple Choice
The diagram shows the structure of a chloroplast. Sandra wants to modify the diagram to include chlorophyll. Which would be the most useful strategy?
Add representations of chlorophyll molecules inside the stroma.
Add representations of chlorophyll molecules on the outer membrane.
Group two or more grana together, and label them as chlorophyll.
Add an enlarged illustration of a thylakoid, and represent chlorophyll molecules in the thylakoid membrane.
- 4. Multiple Choice
Vernon is using the diagram shown above to develop a model of photosynthesis. The letters A, B, and C each represent a reactant or product of the process. Should water (H2O) be included in the model as a reactant or product? If so, how should it be included?
Yes, as reactant A.
Yes, as product B.
Yes, as reactant C.
No, it should not be included.
- 5. Multiple Choice
Vernon is using the diagram shown above to develop a model of photosynthesis. The letters A, B, and C each represent a reactant or product of the process.
What is the role of compound C?
a reactant that provides the energy for assembling sugars
a reactant that provides the carbon and hydrogen for sugars
a reactant that provides the carbon and oxygen for sugars
a product that forms along with sugars
- 6. Multiple Choice
Vernon is using the diagram shown below to develop a model of photosynthesis. The letters A, B, and C each represent a reactant or product of the process.
Vernon wonders whether NADPH and ATP should be classified as reactants or as products of photosynthesis. How should these compounds be classified?
as reactants, because they are used up by photosynthesis
as products, because they are generated by photosynthesis
as either reactants or products, depending on the rate that photosynthesis occurs
as neither reactant nor product, because they are recycled instead of made or used up
- 7. Multiple Choice
What best describes the relationship between the two sets of reactions of photosynthesis, which are the light-dependent reactions and the light-independent reactions?
Each set produces sugars, and by working together they produce more sugars than they would produce separately.
Each set produces half of a sugar molecule, and later the two halves are joined together.
Only the light-dependent reactions produce sugars, but they depend on products of the light-independent reactions.
Only the light-independent reactions produce sugars, but they depend on products of the light-dependent reactions.
- 8. Multiple Choice
The chemical formula for glucose, a simple sugar, is C6H12O6. When a glucose molecule is assembled during photosynthesis, the process takes up 12 hydrogen ions from the stroma of the chloroplast. What process adds 12 hydrogen ions to the chloroplast?
6 water molecules splitting apart during the light-dependent reactions
12 water molecules splitting apart during the light-dependent reactions
12 water molecules splitting apart during the light-independent reactions
other sugar molecules reacting with oxygen in the chloroplast
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