Photosynthesis vs.

Cellular Respiration

Cellular Energy & Biochemistry

Chapter 5

Photosynthesis(autotrophs)

CO2 + H2O C6H12O6 + O2Carbon dioxide Glucose &

& water oxygen

Respiration(heterotrophs)

Energy Cycle

Photosynthesis

Respiration

Autotrophs Herbivor

es Carnivores

Releasing Energy from Foods

What is the function of photosynthesis?

Energy storage Converts light energy to chemical energy in the form of glucose.

What are the two stages of

photosynthesis?

Light CalvinReactions Cycle

requires light

light independent

What is the formula for glucose?C6H12O6

Where in the cell does photosynthesis take place?Thylakoid membranes of chloroplasts.

Where in the chloroplast does the Calvin cycle take place?

Grana of chloroplast

What is the equation for Photosynthesis?

6CO2 + 6H2O → C6H12O6 + 6O2

What are the reactants of Photosynthesis?

CO2 and H2O

What are the products of Photosynthesis?

C6H12O6 and O2

What is the function of Cellular

Respiration?

Energy release Breaks down glucose to form ATP for cellular activities

Cellular Respiration

Glycolysis (yields ATP)

Aerobic Anaerobic(oxygen) (w/o oxygen)

fermentation

Yields 21- 36 Yields 2 ATPATP

Anaerobic Respiration

Alcohol Lactic AcidFermentation Fermentation

Alcohol & CO2 Lactic acid + CO2

baking, sours milk,

brewing muscle fatigue

What is glycolysis and where does it take place?

Glycolysis breaks down glucose into pyruvic acid in the cytoplasm

How many molecules of ATP does glycolysis produce?

2 molecules of ATP

How many molecules of ATP does Cellular Respiration produce?Glycolysis 2 ATPAerobic + 36 ATPTotal 38 ATP

Where in the cell does Cellular Respiration take place?Mitochondria – 2 membrane (outer and inner folds cristae)

Energy Release/Storage CycleATP= Adenosine Tri Phosphate (A-P-P-P)

ADP = Adenosine Di Phospate (A-P-P)

A-P-P - P energy energystorage release

A-P-P + P

What is the equation for Cellular Respiration?

C6H12O6 + 6O2 → 6CO2 + 6H2O (+ Energy in

form of ATP)

What are the reactants of Cellular Respiration?C6H12O6 and O2

What are the products of Cellular Respiration?CO2 and H2O