Ch. 5 Part Two: Respiration

Ch. 5 Part Two: Respiration

Cellular RespirationCellular Respiration

Respiration

Respiration

Transfers the energy in organic compounds (glucose) to make ATP

C6H12O6 + 6O2 ----- 6CO2 + 6H2O + ATP

Occurs in mitochondria Occurs in prokaryotic cell

membranes

What organisms undergo cellular organisms?

Transfers the energy in organic compounds (glucose) to make ATP

C6H12O6 + 6O2 ----- 6CO2 + 6H2O + ATP

Occurs in mitochondria Occurs in prokaryotic cell

membranes

What organisms undergo cellular organisms?

Cellular RespirationCellular Respiration

2 Types of Respiration

2 Types of Respiration

Aerobic Respiration: Requires oxygen to transfer the energy in glucose to ATP

Anaerobic Respiration: Does not require oxygen to transfer the energy in glucose to ATP

Aerobic Respiration: Requires oxygen to transfer the energy in glucose to ATP

Anaerobic Respiration: Does not require oxygen to transfer the energy in glucose to ATP

Two Stages of Cellular RespirationTwo Stages of Cellular Respiration

Cellular Respiration

Cellular Respiration

STAGE ONE- Breakdown Glucose –

primary fuel for respiration Breakdown of Glucose is

called Glycolysis Carbohydrates (starches,

sucrose) are broken down for energy (fats too)

Glycolysis makes pyruvate and uses two ATP molecules, but makes four ATP molecules

STAGE ONE- Breakdown Glucose –

primary fuel for respiration Breakdown of Glucose is

called Glycolysis Carbohydrates (starches,

sucrose) are broken down for energy (fats too)

Glycolysis makes pyruvate and uses two ATP molecules, but makes four ATP molecules

Cellular RespirationCellular Respiration

Cellular Respiration

Cellular Respiration

STAGE TWO- ATP production A. Pyruvate enters

mitochondria B. Goes through a series of

chemical reactions called the Kreb’s Cycle

Creates MORE ATP – 32 – 34 Molecules of ATP

STAGE TWO- ATP production A. Pyruvate enters

mitochondria B. Goes through a series of

chemical reactions called the Kreb’s Cycle

Creates MORE ATP – 32 – 34 Molecules of ATP

Cellular Respiration Cellular Respiration Stage 1 & Stage 2 Stage 1 & Stage 2

Cellular RespirationUsed (Reactants)

Produced (Products)

Stage One Glucose Pyruvate, ATP, NADH

Stage Two Pyruvate, ATP, NADH

More ATP

Anaerobic Respiration Anaerobic Respiration Fermenta

tion

Know any foods or drinks made through this?

Fermentation

Know any foods or drinks made through this?

When oxygen is present more ATP is produced then when it is not

When oxygen is absent small amounts of ATP are produced in a process called fermentation

When oxygen is present more ATP is produced then when it is not

When oxygen is absent small amounts of ATP are produced in a process called fermentation

Cellular RespirationCellular Respiration Lactic

Acid Fermentation

Lactic Acid Fermentation

Lactic Acid Fermentation: A. By some prokaryotes

and fungi used to produce foods like yogurt & cheese

Lactate can build up in muscles if it isn’t removed quick enough = sore muscles

Lactic Acid Fermentation: A. By some prokaryotes

and fungi used to produce foods like yogurt & cheese

Lactate can build up in muscles if it isn’t removed quick enough = sore muscles

Cellular RespirationCellular Respiration Alcoholic

Fermentation

Alcoholic Fermentation

Alcoholic Fermentation Pyruvate broken down to

ethanol (alcohol) Carried out by yeast to

make wine and beer Causes yeast to release

CO2 to make bread rise, carbonate alcohol

Alcoholic Fermentation Pyruvate broken down to

ethanol (alcohol) Carried out by yeast to

make wine and beer Causes yeast to release

CO2 to make bread rise, carbonate alcohol

Which is Better? Which is Better? Aerobic

vs. Anaerobic Respiration

Aerobic vs. Anaerobic Respiration

Suppose you’re an organism that can carry out either aerobic respiration or anaerobic energy pathways. Which one would be more beneficial to you and why?

Suppose you’re an organism that can carry out either aerobic respiration or anaerobic energy pathways. Which one would be more beneficial to you and why?