Download ATP = Adenosine Triphosphate

Connection between photosynthesis & respiration
Plant Cell
glucose
chloroplast
glucose
chloroplast
ATP
mitochondrion
ATP
mitochondrion
• Plants
– Create glucose through photosynthesis
– Glucose is used to make ATP through cellular respiration
Connection between photosynthesis & respiration
Glucose
mitochondrion
(from
food)
ATP
Glucose
• Animals
– Plants create glucose through photosynthesis
– Animals eat the plants
– Glucose is used to make ATP through cellular respiration
Cellular Respiration
•
•
•
•
•
Who? All eukaryotic cells
Purpose? Convert food (such as glucose) into ATP
1 glucose = 36 ATP
Aerobic process: Reaction requires O2
Exothermic reaction: reaction that releases heat
Step 1: Glycolysis
Mitochondria
Glucose
C C
C
Enzyme
C
C C
C6H12O6
C
C
C
• Where? In cytoplasm
• What happens?
A) Glucose (from our food) is broken down
B) 2 ATP molecules released for cellular processes
C) Broken pieces of glucose (pyruvate) enter mitochondria
Step 2: Kreb’s Cycle
Mitochondria
Enzyme
CO2
C
CO2
C
CO2
C
Energy
molecule
CO2
C
CO2
C
CO2
C
Enzyme
• Where? Inner mitochondria layer (matrix)
• What happens?
A) Enzymes break apart pyruvate
B) 2 ATP & CO2 created
C) Energy molecules sent to fluid interior of mitochondria
Step 3: Electron Transport Chain
O2
Mitochondria
Enzyme
ADP
O2
Energy
molecule
P
P
ADP
ADP
O2
P
P
ADP
O2
• Where? Across inner mitochondria membrane
• What happens?
A) Mitochondria takes in oxygen (aerobic)
B) Enzymes + Energy molecule + O2
bonds ADP + P to create…. 32 ATP’s
C) Water (H2O) created as waste
(O2 bonds with H from energy molecule)
O2
Review
1) Which molecule is the energy molecule of cells?
2) Which types of organisms perform cellular respiration?
3) Where does glycolysis occur?
4) What is broken down during glycolysis?
5) What is created as a result of glycolysis?
6) Where is aerobic respiration performed?
7) Name the 2 stages of respiration that take place in the mitochondria.
8) Which waste gas is created by the Kreb’s cycle?
9) How many ATP molecules are made during glycolysis?
10) How many ATP molecules are made during Kreb’s cycle?
11) How many ATP molecules are made during Electron transport
chain?
12) How many ATP molecules are made in total?
13) Sketch and label a mitochondrion with the following:
Reactants, Products, & Structures (Krebs cycle, electron
transport chain, matrix, inner membrane)
Review Answers
1)
2)
3)
4)
5)
6)
7)
8)
Which molecule is the energy molecule of cells? ATP
Which types of organisms perform cellular respiration? Eukaryotes
Where does glycolysis occur? Cell’s cytoplasm
What is broken down during glycolysis? Glucose
What is created as a result of glycolysis?
2 ATP and 2 3-carbon molecules (pyruvate)
Where is aerobic respiration performed? Mitochondria
Name the 2 stages of respiration that take place in the mitochondria.
The Kreb’s Cycle & The Electron Transport Chain
Which waste gas is created by the Kreb’s cycle? CO2
9) How many ATP molecules are made during glycolysis? 2 ATP
10) How many ATP molecules are made during Kreb’s cycle? 2 ATP
11) How many ATP molecules are made during Electron transport chain?
32 ATP molecules (Up to 34 ATP molecules)
12) How many ATP molecules are made in total? 36 ATP molecules (Up to
38 ATP molecules)
13)