Why Isn't Oxygen Produced by Organisms That Perform Anoxygenic Photosynthesis

question 43

Multiple Choice

Why isn't oxygen produced by organisms that perform anoxygenic photosynthesis?

• A) Their photosystems do not utilize the Calvin cycle.
• B) They use a different enzyme for the initial reactions of the Calvin cycle.
• C) They use electron donors other than water.
• D) Their membranes lack ATP synthase.
• E) Their chlorophyll contains an iron center rather than magnesium.

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Definitions:

Sacrifice Ratio

The measure of economic costs associated with reducing inflation through monetary policies, typically represented as the loss in output per percentage point decrease in inflation.

Inflation Expectations

The rate at which consumers, businesses, and investors expect prices to rise in the future.

Phillips Curve

A macroeconomic theory that suggests unemployment and inflation have a stable and inverse relationship, indicating trade-offs short-term policy-making.

Disinflation

A reduction in the rate of inflation, indicating a slowdown in the rate at which prices are rising.