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1610 Biology: Ch. 9

1610 Biology: Chapter 9 - Photosynthesis

QuestionAnswer
Chlorophyll A group of light trapping green pigments found in most photosynthetic organisms.
Chloroplasts Membranous organelles that are the sites of photosynthesis in eukaryotes; occur in some plant and algal cells.
Carbon Fixation Reduction reactions of photosynthesis in which carbon from carbon dioxide becomes incorporated into organic molecules, leading to the production of carbohydrate.
Calvin Cycle Cyclic series of reactions in the chloroplast stroma in photosynthesis; fixes carbon dioxide & produces carbohydrate.
Light dependent reactions Reactions of photosynthesis in which light energy absorbed by chlorophyll is used to synthesize ATP & usually NADPH. (includes cyclic and noncyclic electron transport)
Ribulose Bisphosphate (RuBP) A five carbon phosphorylated compound with a high energy potential that reacts with carbon dioxide in the initial step of the calvin cycle.
Thylakoids An interconnected system of flattened saclike membranous structures inside the chloroplast.
Noncyclic Electron source H2O
Cyclic Electron source none - electrons cycle through system
Is oxygen released in noncylcic electron transport? Yes, from H2O
Is oxygen released in cylcic electron transport? No
Noncyclic terminal electron acceptor NADP+
Cyclic terminal electron acceptor none - electrons cycle through system
Noncyclic form in which energy is temporarely captured? ATP (by chemiosmosis) and NADPH
Cyclic form in which energy is temporarely captured? ATP (by chemiosmosis)
Noncyclic photosystems required PSI (P700) and PSII (P680)
Cyclic photosystems required PSI (P700) only
Metabolic reaction in photosynthesis Anabolism
Raw materials of photosynthesis CO2 and H2O
End products of photosynthesis are C6,H12,O6,O2
Which cells photosynthesize? Cells that contain chlorophyll (certain cells of plants, algae, and some bacteria)
In eukaryotic cells, which sites photosynthesize? Chloroplasts
ATP production in photosynthesis By photophosphorylation
The principal electron transfer compound in photosynthesis NADP+ which is reduced to form NADPH+
Location of the electron transport chain in photosynthesis Thylakoid membrane
In photosynthesis, the source of electrons for the electron transport chain is? In noncyclic electron transport: H2O (undergoes photolysis to yield electrons, protons, and oxygen)
The terminal electron acceptor for electron transport chain in photosynthesis In noncyclic electron transport: NADP+ (becomes reduced to form NADPH)
Metabolic reaction in aerobic respiration Catabolism
Raw materials of Aerobic Respiration C6, H12, O6, O2
End products of aerobic respiration CO2 & H2O
Which cells participate in aerobic respiration? Every actively metabolizing cell has aerobic respiration or some other energy releasing pathway.
Sites involved in aerobic respiration Cytosol(glycolysis)& mitochondria
ATP production in Aerobic respiration By substrate level phosphorylation and by oxidative phosphorylation (a chemiosmosis process)
The principal electron transfer compound in aerobic respiration NAD+ is reduced to form NADH+
Location of the electron transport chain in aerobic respiration Mitochondrial inner membrane (cristae)
In aerobic respiration, the source of electrons for the electron transport chain is? Immediate source: NADH & FADH2. The ultimate source: glucose or other carbohydrates
The terminal electron acceptor for electron transport chain in aerobic respiration O2 (becomes reduced to form H2O)
Created by: abalding
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