Which of the Following Statements About the OEC Is FALSE

question 22

Multiple Choice

Which of the following statements about the OEC is FALSE?
I.It is located at the lumenal surface of the D1 subunit
II.It has a low reduction potential in all states
III.It contains Mn₄CaO₄ or Mn₄CaO₅
IV.Part of the cluster is liganded to the amino acids Asp and Glu

• A)II, III
• B)II only
• C)III only
• D)II, IV
• E)II, III

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Definitions:

Physical Dependence

A physiological state of adaptation to a substance, characterized by the onset of withdrawal symptoms when the substance is reduced or discontinued.

Psychoactive Drugs

Substances that affect the mind, altering mood, perception, or consciousness when ingested or otherwise introduced into the body.

Hallucinogens

Substances that cause profound changes in perception, thought, and mood, often leading to visual or auditory hallucinations.

Depressants

Substances that reduce the activity of the central nervous system, leading to relaxation, reduced anxiety, and sleepiness.