Examlex
In the mitochondria pyruvate molecules are converted into ____________________ molecules, which can enter the Krebs cycle reactions.
Ribosomes
Cellular structures responsible for protein synthesis, reading mRNA sequences to assemble amino acids into polypeptides.
Protein Synthesis
The cellular process of building proteins from amino acids based on the instructions coded in DNA and mediated by RNA.
Microfilament
Cytoskeletal element composed of actin subunits; reinforces cell membranes; functions in movement and muscle contraction.
Muscle Contraction
The process by which muscle fibers produce force and tension through the sliding of actin and myosin filaments, powered by ATP.
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