How Does Calcium Ion Concentration Affect Cellular Functions?
Calcium ions are pivotal in various cellular processes. They regulate enzyme activities, modulate cell membrane potentials, and play a role in apoptosis. In neurons, calcium ions are crucial for the release of neurotransmitters at synaptic junctions. In muscle cells, they interact with proteins like troponin and tropomyosin to facilitate contraction. Disruptions in calcium ion concentration can significantly impact cellular function and viability.