What Are the Major Differences Between Photosystem I and Photosystem

question 44

Multiple Choice

What are the major differences between photosystem I and photosystem II? (Select all that apply)

• A) P₇₀₀ is the reaction center chlorophyll in photosystem I while P₆₈₀ is the reaction center chlorophyll in photosystem II.
• B) Photosystem I occurs first.
• C) Photosystem II occurs first.
• D) Photosystem II produces atmospheric oxygen.

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Definitions:

Economies of Scale

Cost advantages that enterprises obtain due to their scale of operation, with cost per unit of output generally decreasing with increasing scale as fixed costs are spread out over more units of output.

Inverted U-Theory

A hypothesis that suggests a relationship between any given variable and a factor of interest initially increases, reaches an optimal level, then declines.

R&D Expenditures

Refers to spending on research and development activities by governments, businesses, or other organizations to innovate or improve products and services.

Economies of Scale

The economic benefits companies achieve through expanding their scale of activity, as the cost for every unit of output falls with the growth in scale.