Biology Resource

Mitochondria Diagram Labeled, Blank & Printable

Free mitochondria diagrams — labeled outer/inner membrane, cristae, matrix, blank worksheet, simple kids version, and coloring. Download or print; no sign-up.

Outer & inner membrane, cristae, matrixBlank worksheet version

Free Mitochondria Diagrams

Every version below is free to view and download — no sign-up. Need a custom AI layout? Use the Mitochondria Diagram Generator.

Labeled

Labeled Mitochondria

Outer membrane, inner membrane/cristae, matrix, intermembrane space labeled.

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Core diagrams

Structure & focus

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Test yourself: mitochondria

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Mitochondria are often called the…

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What is a mitochondria diagram?

A mitochondria diagram shows the structure of a mitochondrion (plural: mitochondria) — the organelle where most cellular ATP is made. School diagrams highlight the double membrane: a smooth outer membrane and a highly folded inner membrane (cristae) around the matrix.

Parts that must be labeled correctly

  • Outer membrane — smooth outer boundary of the organelle.
  • Intermembrane space — narrow gap between outer and inner membranes.
  • Inner membrane — folds inward as cristae; holds ETC and ATP synthase.
  • Cristae — the folds themselves (not a third separate membrane).
  • Matrix — fluid inside the inner membrane; Krebs cycle location.

Structure ↔ function (quick exam link)

Folded cristae increase surface area for electron transport. The matrix holds enzymes for the Krebs cycle. Do not draw the inner membrane as a simple smooth bag without folds when the lesson is about ATP production.

Free diagram pack vs AI generator

This page is a free resource pack for “mitochondria diagram”: labeled, blank, simple, cristae focus, respiration map, and coloring. For custom AI versions, use the Mitochondria Diagram Generator. Both pages cross-link so students land on the right format.

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