Cellular Respiration

Review: Heterotrophs vs. Autotrophs

Heterotrophs must consume others for energy (consume producers)

Autotrophs produce their own energy compounds (photosynthesis or chemosynthesis)

break down glucose to useable form of energy (ATP)

cellular respiration

Cellular Respiration

C6H12O6 + 6O2 ———> 6CO2 + 6H2O + ATP

process of breaking down glucose for making ATP

aerobic (requires oxygen)

Mitochondrion

site of cellular respiration

contains required enzymes & folded membranes (surface area)

Cellular Respiration

Step-wise reaction

Glycolysis= Breaks down glucose

Krebs cycle= Releases CO2

Electron transport chain (ETC)= Uses O2 and makes H2O, makes most ATP

Cellular Respiration

ATP

Adenosine triphosphate

Stores energy in unstable phosphate bonds

Made within cells (mitochondria)

Used for cellular transport and work

Breaking/Making ATP

ATP breaks down to form ADP + P

ADP = adenosine diphosphate

P = phosphate

Broken bond releases energy, ADP more stable

ATP can be reformed!

ADP + P and ATP

Mitochondria and Chloroplasts

Similarities?

Process Connection

Interdependence photosynthesis - cellular respiration

Cell Respiration Review