life inside cell

Prokaryotic Cells

Cells that lack a defined nucleus and membrane-bound organelles; generally smaller and simpler than eukaryotic cells.

Eukaryotic Cells

Cells with a defined nucleus and membrane-bound organelles; typically larger and more complex than prokaryotic cells.

Organelles

Specialized structures within a cell that perform distinct processes.

Nuclear Envelope

A double membrane that surrounds the nucleus, controlling the movement of substances in and out of the nucleus.

Endomembrane System

A series of membranes that modify, package, and transport lipids and proteins in eukaryotic cells.

Cytoskeleton

A network of fibers that helps maintain cell shape, provides support, and facilitates movement.

Microfilaments

The thinnest filaments of the cytoskeleton, composed of actin, involved in cell movement and shape.

Intermediate Filaments

Filaments of the cytoskeleton that provide mechanical support and anchor organelles.

Microtubules

Hollow tubes of the cytoskeleton that maintain cell shape, enable cell motility and transport materials.

Motor Proteins

Proteins that move along the cytoskeleton and are involved in the transport of cellular materials and muscle contraction.