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Cellular physiology is the study of the functions and processes that take place within a living cell. It includes several areas of research, such as the transport of substances across the cell membrane, energy production, cellular communication, regulation of metabolic processes, cell growth and differentiation, and many more. Here are some aspects of cellular physiology:

Cellular transport: Cells must transport essential substances across their membrane to maintain their function. There are several transport mechanisms, such as diffusion, osmosis, endocytosis and exocytosis.

Cellular metabolism: Cells carry out metabolic processes to produce energy, synthesize molecules, and eliminate wastes. These processes include cellular respiration, photosynthesis, glycolysis and biosynthesis.

Cellular signaling: Cells communicate with each other through chemical signals to coordinate cellular responses and activities. This can involve hormones, neurotransmitters and signaling molecules.

Genetic Regulation: Cellular physiology also studies how genes are regulated and expressed in the cell to control the processes of development, differentiation, cell division and cell repair.

Cellular response to stimuli: Cells can respond to external stimuli, such as light, temperature, nutrients or pathogens, by adapting their functioning to maintain cellular homeostasis. 

Knowledge of cellular physiology is essential to understanding the normal functioning of cells, as well as the mechanisms involved in diseases and potential therapies.