Transcript Photosynthesis AND Cellular Respiration

Photosynthesis AND
Cellular Respiration
Chapter 9
ATP
• Stands for adenosine triphosphate
• Composed of one adenosine
molecule and three phosphate
molecules
• When a phosphate bond is broken,
the energy is released and ADP or
adenosine diphosphate forms.
ATP/ADP Cycle
• Important for 2 reasons:
• Relieves the cell of storing too
much ATP
• Some processes only need ADP
energy
• Energy is used for making proteins,
enzymes, and active transport
• Kidneys use ATP to remove waste
Photosynthesis
• Photosynthesis –uses sun’s energy
to make simple sugars which convert
into complex carbs like starches
• CO2 + H2O + sunlight 
C6H12O6 + O2
• Occurs in chloroplasts
• Chlorophyll absorb all light except
green, which is reflected
Parts of Plants for
Photosynthesis
• Stomata – gas exchange
• Roots – absorb water
• Xylem – water for plants
• Phloem – glucose for plants
• Vascular tissue – transports materials to
cells
Cellular Respiration
• Cellular Respiration – mitochondria
breaks down food molecules to produce
ATP
• C6H12O6 + O2  CO2 + H2O + 36
ATP
• There are two different types of Cellular
Respiration
Cellular Respiration
• Aerobic Respiration – creating ATP with
oxygen
• Occurs in the mitochondria
• Occurs in plant and animal cells
• Creates 36 ATP
• Anaerobic Respiration – creating ATP with no
oxygen required
• Occurs in bacteria, yeast, and muscle cells
• Occurs in the cytoplasm
• Creates 2 ATP
• 2 examples
Anaerobic Process
• Alcoholic Fermentation – makes CO2,
ethyl alcohol, and 2 ATP
• Makes bread and beer
• Lactic Acid Fermentation – makes lactic
acid and 2 ATP
• Feel burning in muscles
• Supplies energy to cells when no
oxygen is present