CELLULAR ENERGIES

Where is energy created in a eukaryotic cell?

What about in prokaryotic cells?

ATP What is energy in biology? Whoa! HOT stuff! Adenosine TriPhosphate

ATP: energy molecule

What is energy? Calorie = Energy A calorie is a heat unit of energy

ATP CYCLE

How do we define Cellular Respiration? Release energy from food to make ATP

Who does Respiration? All Living Organisms!

Aerobic Resp Anaerobic Resp. Req. OXYGEN Makes a LOT ATP NO OXYGEN Makes a LITTLE ATP

PROTIST Aerobic or Anaerobic? BACTERIA FUNGUS (YEAST) PLANTS ANIMALS

ANAEROBIC 1 st Step: Glycolysis – Splitting of Glucose EXERGONIC (energy releasing) Phosphorylation NAD

Where does glycolysis occur? CYTOPLASM

Flow Chart

FERMENTATION Respiration with NO oxygen

Chapter 23 Bacteria and Yeast in Food Production

What happens to the pyruvate? FERMENTATION: yeast & bacteria

Fermentation in Humans Build up of Lactic Acid in Muscles Lack of Oxygen

IN HUMANS

Choose your own adventure!

AEROBIC RESPIRATION Where does it occur in a cell?

Why the extra layers? Increase Surface Area MITOCHONDRIA

AEROBIC RESPIRATION STEP 1: Glycolysis Glucose Pyruvate If O2 is present! STEP 2: Kreb Cycle STEP 3: Electron Transport Chain (ETC)

From Food To ATP

Glucose CO 2 + H 2 O ATP released for cellular work many tiny steps

All organic molecules!

Who does photosynthesis?

Chemoautotrophs

CHLOROPLAST Increase Surface Area

CHLOROPHYLL green pigment converts solar energy into chemical energy (ATP)

The World of Plants: PhotosynthesisUS

Light RxN Dark RxN