Why Are the Reaction Centres of Photosystems Composed of Several

question 27

Multiple Choice

Why are the reaction centres of photosystems composed of several structurally different pigments?

• A) Excited electrons must pass through several pigments before they can be transferred to electron acceptors of the electron transport chain.
• B) This arrangement enables the plant to absorb light energy of a variety of wavelengths.
• C) This arrangement enables the plant to absorb more photons from light energy, all of which are at the same wavelength.
• D) This arrangement enables the reaction centre to excite electrons to a higher energy level.

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Definitions:

Reality Principle

A psychoanalytic concept describing the process through which ego seeks to satisfy desire in realistic and socially appropriate ways, balancing the demands of the id and the super-ego.

Unconditional Positive Regard

A concept in humanistic psychology where an individual is accepted and loved as they are without conditions or judgment.

Conditions of Worth

Concepts in humanistic psychology referring to the stipulations set by individuals or society that dictate when people are worthy of respect or approval.

Self-Actualization

The actualization or achievement of an individual's skills and possibilities, viewed as a natural desire or necessity inherent in all people.