Chapter 8.1: Overview of Photosynthesis Flashcards
What is the conversion of CO2 into organic compounds during photosynthesis; the first stage of the dark reactions of photosynthesis, in which carbon dioxide from the air is combined with ribulose 1,5-biphosphate?
carbon fixation
What range of light does chlorophyll b absorb?
chlorophyll b is an accessory pigment to chlorophyll a, absorbing light in the blue and red-orange ranges
What is in photosynthesis, the reactions of the Calvin cycle in which ATP and NADPH from the light-dependent reactions are used to reduce CO2 and produce organic compounds such as glucose. This involves the process of carbon fixation, or the conversion of inorganic carbon (CO2) to organic carbon (ultimately carbohydrates)?
light-independent reactions
What type of chlorophyll absorbs light in the blue and the red-orange ranges of the visible light spectrum?
chlorophyll b
What is in chloroplasts, the semiliquid substance that surrounds the thylakoid system and that contains the enzymes needed to assemble organic molecules from CO2?
stroma
Define carbon fixation
the conversion of CO2 into organic compounds during photosynthesis; the first stage of the dark reactions of photosynthesis, in which carbon dioxide from the air is combined with ribulose 1,5-biphosphate
Where is oxygenic photosynthesis found?
• Found in cyanobacteria, seven groups of algae, and essentially all land plants
Define light independent reaction
in photosynthesis, the reactions of the Calvin cycle in which ATP and NADPH from the light-dependent reactions are used to reduce CO2 and produce organic compounds such as glucose. This involves the process of carbon fixation, or the conversion of inorganic carbon (CO2) to organic carbon (ultimately carbohydrates)
What is an organized complex of chlorophyll, other pigments, and proteins that traps light energy as excited electrons?
photosystems
What range of light does chlorophyll a absorb?
Chlorophyll a absorbs light in the violet-blue and the red ranges of the visible light spectrum
What is the primary type of light-absorbing pigment in photosynthesis?
chlorophyll
What is photosynthesis that does produce oxygen?
oxygenic photosynthesis
Define photosystems
an organized complex of chlorophyll, other pigments, and proteins that traps light energy as excited electrons
Where are the photosystems located?
thylakoid membrane of chloroplasts
After Using the energy to make ATP and to reduce the compound NADP+, and electron carrier, to NADPH what is the last stage of photosynthesis?
Using the ATP and NADPH to power the synthesis of organic molecules from CO2 in the air
What is in photosynthesis, the reactions in which light energy is captured and used in production of ATP and NADPH. In plants this involves the action of two linked photosystems?
light-dependent reactions
After Capturing energy from sunlight what is the next stage of photosynthesis?
Using the energy to make ATP and to reduce the compound NADP+, and electron carrier, to NADPH
Define light-dependent reactions
in photosynthesis, the reactions in which light energy is captured and used in production of ATP and NADPH. In plants this involves the action of two linked photosystems
What is the photosynthesis equation?
6CO2 + 12H2O + light –> C6H12O6 + 6H2O + 6O2
What is oxygenic photosynthesis?
photosynthesis that does produce oxygen
What is the first stage of photosynthesis?
Capturing energy from sunlight
Where is anoxygenic photosynthesis found?
• Found in purple bacteria, green sulfur bacteria, green nonsulfur bacteria, and heliobacteria
What is photosynthesis that doesn’t produce oxygen?
anoxygenic photosynthesis
Where does photosynthesis take place?
chloroplasts
Define stroma
in chloroplasts, the semiliquid substance that surrounds the thylakoid system and that contains the enzymes needed to assemble organic molecules from CO2
What type of chlorophyll absorbs light in the violet-blue and the red ranges of the visible light spectrum?
chlorophyll a
What is anoxygenic photosynthesis?
photosynthesis that doesn’t produce oxygen
Define chlorophyll
the primary type of light-absorbing pigment in photosynthesis
