04.2 Total C

What is the primary pigment responsible for photosynthesis in plants?

• Carotene
• Chlorophyll
• Indigo
• Violet

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

What is the primary function of chlorophyll in photosynthesis?

• To absorb carbon dioxide
• To produce high-energy electrons
• To convert water into oxygen
• To synthesize glucose

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

Which compound acts as an electron carrier in photosynthesis?

• ATP
• Glucose
• NADP+
• Chlorophyll

What is the primary function of chlorophyll in photosynthesis?

• To absorb carbon dioxide
• To produce oxygen
• To absorb light energy
• To synthesize glucose

Tags

NGSS.HS-LS1-5

Which of the following is NOT a component of a chloroplast?

• Thylakoid
• Stroma
• Mitochondria
• Pigments

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. 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.

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

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. What is the role of compound C?

• 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

Tags

NGSS.HS-LS1-5

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

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.

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