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DNA carries the instructions that guide biological structure and function. Its sequences encode the information required for cellular activity, development, and reproduction.This chapter explores DNA as an information boundary system, where genetic sequences organise and preserve biological instructions across generations.
The cell membrane defines the physical boundary that separates the internal environment of the cell from the external world. Through its structure and flexibility, it regulates exchange while preserving cellular stability.This chapter examines the membrane as a curvature boundary that maintains cellular organisation while allowing controlled interaction with surrounding environments.
Neural systems process information through interconnected pathways that continually circulate signals across the network. These loops allow organisms to interpret sensory input, generate responses, and maintain internal awareness.This chapter explores neural loops as recursive signalling structures that support complex cognition and behavioural coordination.