CELLULAR RESPIRATION

ENERGY

• Energy is the ability to do work– Cars running on fuel Chemical Energy

– Computers and light bulbs Electrical Energy

• Living organisms depend on energy, too.

• Sometimes, it is easy to see when we need energy

• Other times, it is not that obvious

• All organisms obtain energy in different ways

• Lipids

• Proteins

• Nucleic Acids

• Carbohydrates

BIOMOLECULES

• Provide quick burst of ENERGY

• Polymer– Long chain of sugar

• Monomer – Monosaccharide– Sugar– Glucose

CARBOHYDRATES

• Cellular Respiration is the process in which sugars (glucose) are converted into usable energy (ATP).

• Glucose is the fuel for Cellular Respiration

WHAT IS CELLULAR RESPIRATION?

• Cell Respiration happens in the Mitochondrion

Outer Membrane

Inner Membrane

Plant Cells

REMINDER!!!!!!

Animal Cells

• Cellular Respiration needs:

– Oxygen

– Fuel/Energy Source• Carbohydrates• Sugars/Glucose

REACTANTS FOR CELLULAR RESPIRATION

• Cellular Respiration will produce:– Water

– Carbon Dioxide

– Energy/ATP

PRODUCTS OF CELLULAR RESPIRATION

• ATP is a molecule that provides the energy to a cell.

• Different parts of a cell uses ATP to carry their functions

WHAT IS ATP?

GENERAL CHEMICAL REACTION

Glucose (Sugar)

Oxygen Water+ +

6O2 6H20+ + +

+

ATP

Cellular Energy

Waste Products

• A light bulb needs electricity to light up– Electricity is the energy

• A cell needs ATP to function– ATP is the energy

ANALOGY

PHOTOSYNTHESIS AND CELLULAR RESPIRATION

Glucose (Sugar)

Oxygen Water+ +

6O2 6H20+ + +

+

ATP

Cellular Energy

Water Glucose (Sugar)

Oxygen+ +Sunlight

6H20 C6H12O6 6O2+ +Sunlight