Infections

Diagram of a virus showing DNA or RNA inside a protein coat and outer envelope.

Viral Infection

Diagram comparing gram-negative and gram-positive bacterial cell walls, showing outer membranes, peptidoglycan layers, and cytoplasmic membranes.

Pathogens

Diagram comparing vancomycin-sensitive and vancomycin-resistant cell-wall cross-linking in four numbered stages, with molecular components shown in a legend.

Antibiotics

Popular

Diagram contrasting extracellular and cytoplasmic compartments, showing potassium concentrations, charge distributions, and opposing diffusion and electrical gradients across a dashed boundary.
Synapses

Resting Membrane Potential

by Aleksandra Lasica and Matan Bone

Diagram illustrating three types of endocytosis: phagocytosis forming a vacuole around a large particle, pinocytosis forming vesicles, and receptor-mediated endocytosis forming a coated vesicle.
Cell Signalling and Molecular Physiology

Endocytosis and Exocytosis

by Rosamund Nicholson

Illustration of the Circle of Willis and major cerebral arteries viewed from below, with labeled anterior, middle, and posterior cerebral, communicating, internal carotid, ophthalmic, basilar, and vertebral arteries.
Special Circulations

Cerebral Circulation

by Luke MacKinnon