📐 Mitochondria Diagram for Class 9

The mitochondrion converts nutrients into a usable form of energy the cell can run on, which is why it's often called the powerhouse of the cell. This model labels its folded inner membrane.

Why It's Important

• Produces the energy every cell needs to function
• More active cells contain more mitochondria
• Carries its own separate DNA
• Essential to nearly every process in the body

Observation Points

• Notice the folded inner membrane (cristae)
• Consider why more folds mean more surface area
• Identify the fluid-filled matrix inside
• Think about why muscle cells contain many mitochondria

Learning Objectives

• Identify the main structures of a mitochondrion
• Explain why it's called the powerhouse of the cell
• Describe the role of the cristae
• Understand why active cells need more mitochondria

Summary

The mitochondrion's folded inner membrane maximises the surface area available to convert nutrients into the energy every cell needs to function.