Electrochemical Cells And Its Applications

Among the given options, the life process that is electrochemical in origin is the "Transmission of sensory signals." This is because:

• Sensory signals are transmitted through neurons, which rely on electrical impulses to communicate.
• This process involves the movement of ions such as sodium (Na⁺) and potassium (K⁺) across neuron membranes, creating an electrical charge difference.
• The propagation of an action potential, which is the electrical signal, depends on these ionic movements, making it an electrochemical process.

So, the correct option is (C): Transmission of sensory signals