Biology McGraw-Hill Lab 8 -
Photosynthesis and Cell Respiration 2026
With Questions And Correct Answers
Which best explains the role of plant pigments in photosynthesis?
-reduce NADP
-provide electrons
-produce photon energy
-convert heat to electricity
-absorbs light energy - correct answer<✔✔💖💖absorbs light energy
Plant pigments absorb visible light energy and convert this energy into chemical energy.
Which of the following is NOT a product of the light reaction?
-NADPH
-ATP
-carbon dioxide
-energy intermediates
-oxygen - correct answer<✔✔💖💖carbon dioxide
The photosynthesis reaction requires light, water, and carbon dioxide as reactants and produces
carbohydrates (like glucose) and oxygen during the process.
All of the following are required for the Calvin cycle except ______________.
-CO2.
-rubisco.
-NADPH.
-ATP.
, -H2O. - correct answer<✔✔💖💖H2O.
In the Calvin cycle (light independent reaction), carbon dioxide is converted into carbohydrates with the
help of ATP, NADPH and an enzyme called rubisco. Water was used in the first part of photosynthesis
(light dependent reactions) to drive the creation of ATP used in the Calvin cycle.
The molecule that traps the sun's energy is _______________. - correct
answer<✔✔💖💖chlorophyll
Chlorophyll pigments are protein molecules imbedded in the chloroplast the thylakoid membrane.
The oxygen produced by a plant comes most directly from __________. - correct
answer<✔✔💖💖H2O
Water is split into hydrogen and oxygen. The hydrogen is used in the first part of photosynthesis (light
dependent reactions) to drive the creation of ATP used in the Calvin cycle. The oxygen is released by the
plant or used to create ATP during cellular respiration.
Which of the following is NOT a net (final) product nor a reactant of photosynthesis?
-sunlight
-glucose
-ATP
-oxygen
-carbon dioxide - correct answer<✔✔💖💖ATP
The photosynthesis reaction requires light, water, and carbon dioxide as reactants and produces
carbohydrates (like glucose) and oxygen during the process.
How does a phenol red-containing solution look if CO2 level is low? - correct answer<✔✔💖💖red
Photosynthesis and Cell Respiration 2026
With Questions And Correct Answers
Which best explains the role of plant pigments in photosynthesis?
-reduce NADP
-provide electrons
-produce photon energy
-convert heat to electricity
-absorbs light energy - correct answer<✔✔💖💖absorbs light energy
Plant pigments absorb visible light energy and convert this energy into chemical energy.
Which of the following is NOT a product of the light reaction?
-NADPH
-ATP
-carbon dioxide
-energy intermediates
-oxygen - correct answer<✔✔💖💖carbon dioxide
The photosynthesis reaction requires light, water, and carbon dioxide as reactants and produces
carbohydrates (like glucose) and oxygen during the process.
All of the following are required for the Calvin cycle except ______________.
-CO2.
-rubisco.
-NADPH.
-ATP.
, -H2O. - correct answer<✔✔💖💖H2O.
In the Calvin cycle (light independent reaction), carbon dioxide is converted into carbohydrates with the
help of ATP, NADPH and an enzyme called rubisco. Water was used in the first part of photosynthesis
(light dependent reactions) to drive the creation of ATP used in the Calvin cycle.
The molecule that traps the sun's energy is _______________. - correct
answer<✔✔💖💖chlorophyll
Chlorophyll pigments are protein molecules imbedded in the chloroplast the thylakoid membrane.
The oxygen produced by a plant comes most directly from __________. - correct
answer<✔✔💖💖H2O
Water is split into hydrogen and oxygen. The hydrogen is used in the first part of photosynthesis (light
dependent reactions) to drive the creation of ATP used in the Calvin cycle. The oxygen is released by the
plant or used to create ATP during cellular respiration.
Which of the following is NOT a net (final) product nor a reactant of photosynthesis?
-sunlight
-glucose
-ATP
-oxygen
-carbon dioxide - correct answer<✔✔💖💖ATP
The photosynthesis reaction requires light, water, and carbon dioxide as reactants and produces
carbohydrates (like glucose) and oxygen during the process.
How does a phenol red-containing solution look if CO2 level is low? - correct answer<✔✔💖💖red
