BIOL 110 Lab Exam #2 Questions with
Correct Answers
stages of photosynthesis - ANSWERS1/2. Light-dependent Reactions: chlorophyll
absorbs light energy to make carrier NADPH
3. Carbon Fixation: Carbon Dioxide, ATP and NADPH are used to synthesize organic
molecules.
structure of chloroplast - ANSWERSouter membrane, inter membrane space, inner
membrane, thykaloid, granum (stack of thykaloid)
stroma - ANSWERSthe liquid-filled space surrounding the thylakoids inside
chloroplasts.
- where Carbon fixation occurs
Carbon fixation - ANSWERSThe initial incorporation of carbon from CO2 into an organic
compound by an autotrophic organism (a plant, another photosynthetic organism, or a
chemoautotrophic prokaryote).
-H+ and electron convert CO2 into organic matter
Anoxygenic vs. Oxygenic Photosynthesis - ANSWERS- anoxygenic carried out by
purple and green sulfur bacteria's, etc.
- oxygenix carried out by bacteria but also algae and most land plants
- both require pigments to capture light energy
Light Independent Reactions (Calvin Cycle) - ANSWERSset of reactions in
photosynthesis that do not require light; energy from ATP and NADPH is used to build
high-energy compounds such as sugar; also called the Calvin cycle. Limited by CO2
pigments - ANSWERSmolecules that absorb light energy in visible range
photon - ANSWERSparticle of light/bundle of energy
chlorophyll a - ANSWERSA photosynthetic pigment that participates directly in the light
reactions, which convert solar light energy to chemical energy.
chlorophyll b - ANSWERSaccessory pigment that can absorb photons a cannot
Both Chlorophyll A and B - ANSWERSabsorb violet-blue and red wavelengths, reflect
light in the 500 nm to 600 nm range, have Mg at the center embedded in porphyrin ring
structure
Correct Answers
stages of photosynthesis - ANSWERS1/2. Light-dependent Reactions: chlorophyll
absorbs light energy to make carrier NADPH
3. Carbon Fixation: Carbon Dioxide, ATP and NADPH are used to synthesize organic
molecules.
structure of chloroplast - ANSWERSouter membrane, inter membrane space, inner
membrane, thykaloid, granum (stack of thykaloid)
stroma - ANSWERSthe liquid-filled space surrounding the thylakoids inside
chloroplasts.
- where Carbon fixation occurs
Carbon fixation - ANSWERSThe initial incorporation of carbon from CO2 into an organic
compound by an autotrophic organism (a plant, another photosynthetic organism, or a
chemoautotrophic prokaryote).
-H+ and electron convert CO2 into organic matter
Anoxygenic vs. Oxygenic Photosynthesis - ANSWERS- anoxygenic carried out by
purple and green sulfur bacteria's, etc.
- oxygenix carried out by bacteria but also algae and most land plants
- both require pigments to capture light energy
Light Independent Reactions (Calvin Cycle) - ANSWERSset of reactions in
photosynthesis that do not require light; energy from ATP and NADPH is used to build
high-energy compounds such as sugar; also called the Calvin cycle. Limited by CO2
pigments - ANSWERSmolecules that absorb light energy in visible range
photon - ANSWERSparticle of light/bundle of energy
chlorophyll a - ANSWERSA photosynthetic pigment that participates directly in the light
reactions, which convert solar light energy to chemical energy.
chlorophyll b - ANSWERSaccessory pigment that can absorb photons a cannot
Both Chlorophyll A and B - ANSWERSabsorb violet-blue and red wavelengths, reflect
light in the 500 nm to 600 nm range, have Mg at the center embedded in porphyrin ring
structure
