1. Cellular Respiration (an overview)

2. Connection between photosynthesis & respiration
Plant Cell
chloroplast
mitochondria
glucose
ATP
chloroplast
mitochondria
glucose
ATP
Plants
Create glucose through photosynthesis
Glucose is used to make ATP through cellular respiration

3. Connection between photosynthesis & respiration
Glucose
(from food)
mitochondria
ATP
Glucose
Animals
Plants create glucose through photosynthesis
Animals eat the plants
Glucose is used to make ATP through cellular respiration

4. Cellular Respiration Who? All eukaryotic cells
Glucose
(C6H12O6)
Kingdom Protista
Kingdom Fungi
Kingdom Plantae
Kingdom Animalia
Who? All eukaryotic cells
Purpose? Convert food (such as glucose) into ATP
1 glucose = 36 ATP
Exothermic reaction: reaction that releases heat

5. Step 1: Glycolysis Where? In cytoplasm What happens?
Mitochondria P
ADP
ADP
Glucose
C6H12O6
ADP C C
ATP
ATP P C C
En-zyme C C P P C C C
ADP
Where? In cytoplasm
What happens?
A) Glucose (from our food) is broken down by enzymes
B) 2 ATP molecules released for use by the cell
C) Broken pieces of glucose enter mitochondria

6. Step 2: Kreb’s Cycle Where? Inner mitochondria layer What happens?
ATP
ATP
Mitochondria
ADP P
ADP
En-zyme
ATP
CO2 C
ADP C
CO2 H+ H+ P H+ C
CO2 P
ATP
CO2 C P H+ H+ C
CO2 H+
En-zyme
CO2 C
ADP
Where? Inner mitochondria layer
What happens?
A) Enzymes break apart the glucose fragments further
B) 2ATP, CO2, H+ ions created
C) H+ ions accumulate inside the mitochondria

7. Step 3: Electron Transport Chain
ATP
ATP
ATP
Mitochondria P O2
ATP
ATP
En-zyme
ADP
ADP
ATP
ATP O2 H+ H+
ADP P O2 P H+ P H+ O2 O2 H+ H+
ADP
Where? Interior mitochondria fluid
What happens?
Mitochondria takes in oxygen (aerobic)
Enzymes bring H+ ions, O2, ADP, P together
ATP created (32 total)

8. Quiz Which molecule is the energy molecule of cells?
Which types of organisms perform cellular respiration?
Where does glycolysis occur?
What is broken down during glycolysis?
What is created as a result of glycolysis?
Where is aerobic respiration performed?
Name the 2 stages of respiration that take place in the mitochondria.
Which waste gas is created by the Kreb’s cycle?
How many ATP molecules are made during glycolysis? Kreb’s cycle? Electron transport chain? In total?