Biochemistry

Overview

Biochemistry provides the molecular foundation for understanding physiology. Cellular processes such as energy production, signalling, gene expression, and electrolyte balance underpin the function of every organ system. This section brings together the core biochemical mechanisms that explain how cells generate energy, communicate, grow, and maintain internal stability.

Key Topics

Within this section, you will find content covering cell signalling and molecular physiology, protein synthesis, ATP production, cell growth and division, and electrolyte regulation. These topics are presented as integrated components of cellular function, helping to clarify how molecular events translate into coordinated physiological responses across tissues and systems.

Clinical Relevance and Learning Focus

Disturbances in molecular pathways can lead to widespread physiological dysfunction. Alterations in signalling cascades, metabolic regulation, or ion balance contribute to metabolic disease, endocrine disorders, and cellular pathology. This section is designed to support systems-based understanding by placing biochemical processes within their broader physiological and clinical context.

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Cell Signalling and Molecular Physiology

  • Cellular Receptors
  • Endocytosis and Exocytosis
  • +6 more

Cell Growth and Death

  • The Cell Cycle
  • Mitosis
  • +3 more

Protein Synthesis

  • Protein Structure
  • Transcription of DNA
  • +1 more

ATP Production

  • Gluconeogenesis
  • TCA Cycle
  • +3 more

Electrolytes

  • Sodium Regulation
  • Calcium Regulation
  • +2 more

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Diagram of a neuron showing the soma, nucleus, branching dendrites, axon, Schwann cells, nodes of Ranvier, and a synapse.
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Cells of the Nervous System

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Graph of percent hemoglobin saturation versus PO₂, showing a central oxygen dissociation curve and dotted left- and right-shifted curves with factors affecting oxygen affinity.
Regulation of Respiration

Responses of The Respiratory System to Stress

by Alice James