Cellular Respiration

Cellular respiration What does it do?  Uses glucose to create ATP How do plants get glucose? make it themselves (autotroph) How do animals get glucose? consume it (heterotroph)

What organisms can perform cellular respiration?

Where in a cell does cellular respiration occur?  What organelle makes energy? Mitochondria!

Mitochondria Mitochondria provide eukaryotic cells with energy Mitochondria contain small pieces of DNA!  what organelle contains the full set of DNA?

Mitochondrial structures: Inner membrane Outer membrane Intermembrane space Cristae Matrix

Structures  Outer membrane: phospholipid bilayer, regulates what enters and exits the cell (semi-permeable) Inner membrane: freely permeable only to oxygen, carbon dioxide and water

Structures Intermembrane space: region between the inner and outer membranes, important for oxidative phosphorylation Cristae: folds of inner membrane, increases surface area between matrix and membrane Matrix: contains enzymes that are responsible for a multitude of reactions

Mitochondria  All structures working together…  Glucose is broken down and yields adenosine triphosphate, ATP!

How much ATP is yielded in aerobic respiration? 36 ATP