Erythropoietic Porphyrias Are Associated With

question 9

Multiple Choice

Erythropoietic porphyrias are associated with:

• A) Abnormal iron metabolism
• B) Abnormal enzymes in the heme biosynthetic pathway
• C) Abnormal globin synthesis
• D) DMT1 mutations

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Definitions:

Muscle Fiber

A single, elongated muscle cell that contracts to produce movement.

Myosin Filament

A protein filament that, along with actin, plays a role in muscle contraction and cell movement.

Actin Filament

A protein filament that, along with myosin, plays a key role in muscle contraction and is involved in various types of cell movement and structure.

Acetylcholine

A neurotransmitter in the nervous system that plays a crucial role in muscle movement and various brain functions.