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Physiology
Answer: 2) Increase in glucose transporters (GLUT4) on the cell membrane
Explanation: Insulin stimulates the translocation of glucose transporters (specifically GLUT4) from the intracellular vesicles to the cell membrane of muscle and adipose
Physiology
The middle piece of a sperm cell contains mitochondria, which provide the energy needed for sperm motility and movement towards the egg.