Cell Energy PHOTOSYNTHESIS LIFE’SACTIVITIES RESPIRATION SUN ENERGY SUGARATP(ENERGY)

Cell EnergyCell Energy

PHOTOSYNTHESISPHOTOSYNTHESIS LIFE’SLIFE’SACTIVITIESACTIVITIES

RESPIRATIONRESPIRATION

SUNSUN

ENERGYENERGY

SUGARSUGAR ATP(ENERGY)ATP(ENERGY)

SUNSUN

• The ultimate source of energy on Earth

How do How do AUTOTROPHSAUTOTROPHS get energy to live?get energy to live?

AUTOTROPHSAUTOTROPHS• Use energy from the sun to make their

own food by doing photosynthesis

PHOTOSYNTHESISPHOTOSYNTHESIS• Plant cells take energy from the sun

and turn it into food

• This Takes place in the chloroplast of cellsWhat organelle does photosynthesis take place in?

What do Plants need What do Plants need to do to do

PHOTOSYNTHESISPHOTOSYNTHESIS??

What do Plants make What do Plants make when they do when they do

PHOTOSYNTHESISPHOTOSYNTHESIS??

EQUATIONEQUATION FORFOR PHOTOSYNTHESISPHOTOSYNTHESIS

COCO22 + + HH22OO + + ENERGYENERGY CC66HH1212OO66 + + OO22

CARBON CARBON DIOXIDEDIOXIDE

WATERWATER

GLUCOSEGLUCOSE

OXYGENOXYGEN

What affects the rate of What affects the rate of PHOTOSYNTHESIS PHOTOSYNTHESIS ??

• Water

• Carbon Dioxide

• Light Intensity

• Temperature

HETEROTROPHSHETEROTROPHS• Cannot get energy directly from the sun

• Eat food to get energy

How do organisms How do organisms get get ENERGYENERGY from from

food?food?

CELLULAR RESPIRATIONCELLULAR RESPIRATION• All cells take food and turn it into

energy the organism can use

• Takes place in the mitochondria of cells

What organelle does cellular respiration take place in?

What is What is ATPATP??

What do cells use What do cells use ATPATP for?for?

ATPATP• ATP is a molecule inside cells that acts like

a rechargeable battery carrying small amounts of instantly available energy

P P P

ATPATP• Cellular Respiration makes ATP by using

ENERGY to add a phosphate to a molecule called ADP

P P

ENERGY

P

ATPATP• The ENERGY is stored in the chemical

bond between the second and third phosphate

P P P

EN

ER

GY

ATPATP• When the bond breaks ENERGY is

RELEASED for the cell to use

P P PENERGY

EQUATION FOREQUATION FOR RESPIRATIONRESPIRATION

CC66HH1212OO66 + +GLUCOSEGLUCOSE

OO22

OXYGENOXYGEN

COCO22 + +


HH22OO + + ENERGYENERGY

WATERWATER

ATPATP

How Does the EquationHow Does the Equation for for PHOTOSYNTHESISPHOTOSYNTHESIS

Relate to the Equation for Relate to the Equation for CELLULAR RESPIRATIONCELLULAR RESPIRATION??


COCO22 + +



COCO22 + +



COCO22 + + HH22OO + +


WATERWATER


COCO22 + +


HH22OO + +

WATERWATER


COCO22 + + HH22OO + + ENERGYENERGY


WATERWATER


COCO22 + +



WATERWATER

ATPATP


CC66HH1212OO66 + +

GLUCOSEGLUCOSE




CC66HH1212OO66 + + OO22

GLUCOSEGLUCOSE

OXYGENOXYGEN



OO22

OXYGENOXYGEN


COCO22 + + HH22OO + + ENERGYENERGY CC66HH1212OO66 + + OO22


WATERWATER

GLUCOSEGLUCOSE

OXYGENOXYGEN



OO22

OXYGENOXYGEN

COCO22 + +



WATERWATER

ATPATP



•The The reactantsreactants used in photosynthesis used in photosynthesis are the are the productsproducts made in cellular made in cellular

respirationrespiration

The The productsproducts made in photosynthesis made in photosynthesis are the are the reactantsreactants used in cellular used in cellular

respirationrespiration

EXERCISE AND ENERGYEXERCISE AND ENERGY

• Exercise takes energy• Organisms get energy from cellular

respiration• Cellular respiration takes oxygen• This is why you tend to breathe hard

when you use a lot of energy—Your cells are trying to get enough oxygen to get the energy.

AEROBICAEROBIC

• Aerobic means that it uses oxygen

• Cellular respiration is aerobic

• Some exercises are considered aerobic because your body is using energy at a slower pace so that your body can get enough oxygen to perform cellular respiration

What happens when cells What happens when cells cannot get enough cannot get enough

OXYGENOXYGEN??

ANAEROBICANAEROBIC• Anaerobic means that it does NOT use oxygen• If there is not enough oxygen to perform cellular

respiration, then FERMENTATION FERMENTATION occurs• FERMENTATION FERMENTATION

allows organisms to get energy when oxygen is not available

• Lactic acid fermentation occurs in animals

• Alcoholic fermentation occurs in plants

ANAEROBICANAEROBIC• Some exercises are considered anaerobic because

your body is using energy at a FASTER pace so that your body CANNOT get enough OXYGEN to perform cellular respiration

• For example: during short, fast races you might get a burning feeling in your leg muscles because of a build up in lactic acid (made during fermentation)

Cell Energy PHOTOSYNTHESIS LIFE’SACTIVITIES RESPIRATION SUN ENERGY SUGARATP(ENERGY)

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