Stages of the energy metabolism

The stages of energy metabolism

Learning objective

to describe the stages of energy metabolism

Success criteria

1.Knows the stages of an energetic exchange
2.Describes the stages of

Terminology

Digestion and hydrolysis, catabolic reactions, anaerobic respiration, aerobic respiration, ATP,

The stages of energy metabolism:

The stages of Digestive.
Anaerobic respiration:
Glycolysis
3. Aerobic respiration:
the

Stage of Digestion

The large organic molecules like proteins, lipids and polysaccharides

Anaerobic respiration:

Glycolysis:
“sugar splitting”
Believed to be ancient (early prokaryotes - no

Glycolysis

Stage 1: Energy Investment Stage
Cell uses ATP to phosphorylate compounds of

Each group fills its posters on the energy stages of metabolism.

Success

Glycolysis (Summary)

Aerobic respiration

Link reaction
Citric Acid Cycle (Krebs)
Oxidative Phosphorylation

Link reaction

1.Pyruvate is decarboxylated: CO2 is removed.
2.It is added to

Link reaction

Citric Acid Cycle (Krebs)

Occurs in mitochondrial matrix
Acetyl CoA Citrate released
Net gain:

Krebs cycle

Oxidative Phosphorylation

Occurs in inner membrane of mitochondria
Produces 26-28 ATP by oxidative

Total

Success criteria

1.Knows the stages of an energetic exchange
2.Describes the stages of