Examlex
Which of the following nuclides would be radioactive?
Inner Membrane
The membrane located towards the interior of an organelle, especially significant in mitochondria and chloroplasts for energy generation.
Cell Cortex
The outer layer of the cytoplasm of a cell, usually enriched with actin filaments, which helps to maintain the cell's shape and to facilitate cellular movement.
Actin Filaments
Thin filaments consisting mainly of the protein actin; actin and myosin filaments make up the myofibrils of muscle fibers.
Intermediate Filaments
Cytoplasmic fibers that are part of the cytoskeletal network and are intermediate in diameter between microtubules and microfilaments.
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