Which Statement Describes the Functioning of Photosystem II

question 1

Multiple Choice

Which statement describes the functioning of photosystem II?

• A)Light energy excites electrons in the thylakoid membrane electron transport chain.
• B)Photons are passed along to a reaction-centre chlorophyll.
• C)The P680 chlorophyll donates a pair of protons to NADP⁺, which is thus converted to NADPH.
• D)The electron vacancies in P680⁺ are filled by electrons derived from water.
• E)The splitting of water yields molecular carbon dioxide as a by-product.

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Definitions:

Product-variety Externality

An economic effect where the variety of products available in the market impacts the welfare of consumers, often positively.

Efficient Scale

The level of production at which average total costs are minimized, indicating the most cost-effective scale of operation.

Marginal Cost

The expenditure required to produce one more unit of a particular product or service.

Monopolistically Competitive

A market structure characterized by many firms, differentiated products, and free entry and exit, allowing firms some control over price while still competing on quality, branding, and price.