The Action Spectrum of Photosynthesis Shows a High Light Absorption

question 5

Multiple Choice

The action spectrum of photosynthesis shows a high light absorption for violet/blue and orange/red and a low absorption for green/yellow.If we were to set up an experiment where narrow bands of unicolored light were shown on an aquatic plant such as Elodea,and we counted the number of bubbles of oxygen produced as an indicator of photosynthetic rate,how would the graph appear?

• A)just like the action spectrum with peaks at violet/blue and orange/red and a trough at yellow/green
• B)exactly inverted from the action spectrum with a peak for yellow/green
• C)perfectly flat because many wavelengths are used by chlorophyll
• D)a descending line because ultraviolet light has more energy than infrared
• E)There is no way to guess without actually running the experiment.

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Definitions:

Invisible Hand

A term coined by Adam Smith to describe the self-regulating nature of the marketplace, where individuals' pursuit of self-interest leads to beneficial social outcomes.

Market Behavior

Refers to the aggregate actions and reactions of buyers and sellers in a marketplace, influencing prices, supply, and demand.

Trade

The exchange of goods, services, or both between two or more parties, often internationally or domestically to mutual advantage.

Short-run

A time period in economics during which at least one input, such as factory size or capital, is fixed, and firms can adjust production levels only by changing variable inputs like labor.