What Catalyst Converts 7-Dehydrocholesterol to Provitamin D₃

question 85

Multiple Choice

What catalyst converts 7-dehydrocholesterol to provitamin D₃?

• A) calcium
• B) sunlight
• C) intestinal bacteria
• D) calcitriol

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Definitions:

Positive Symptom

Positive Symptom refers to an excess or distortion of normal functions, such as hallucinations or delusions, often observed in psychiatric conditions.

Schizophrenia

A mental disorder characterized by distorted thinking, perceptions, emotions, language, sense of self, and behavior.

Delusions

Fixed false beliefs that are resistant to reason or confrontation with actual fact, often found in psychotic disorders.

Schizophrenia

A persistent mental illness that disrupts the connection among thinking, feeling, and acting, causing incorrect perceptions, actions, and emotions, isolation from the actual world and personal ties in favor of fantasy and delusion, and an experience of mental disunity.