Lecture—17 November 2003

Food, food getting, food utilization

IN the beginning

Origin of life

Hypothesis of metabolism

Hypothesis of replication

Proteins

Carbohydrates

Fats/lipids

Miller and Urey’s work fits into the hypothesis of metabolism

One function of a protein

Enzyme—three dimensional structure

Adherence of amino acids to clay particles produced proteinoids

Microspheres

Coacervates

ATP—adenosine triphosphate

Universal soup—taking materials into the cellular interior by allowing them to pass through the membrane

In solution---gradients with high out side and low inside

Anabolism and catabolism

Active transport

Pinocytosis—cell drinking

Phagocytosis

Proteins, carbohydrates, and fats

Vitamins

Minerals—iron, zinc, tin, manganese

Protists--