Lesson 13 (1) Flashcards
The entirely of all the chemical activities that an organism performs
Metabolism
Begins with a specific molecule, which is altered within a series of steps
Metabolic pathways
Organic fuel broken down in the presence of oxygen
Catabolic pathways
Compound that reacts to water
Hydrolysis
Complex molecules are built using energy
Anabolic pathways
Activities obtaining raw materials from the enviroment and transport them to cells
Digestive system
Substances that organisms need in order to grow and function
Nutrients
Organisms with only 1 opening
Gastrointestinal cavity
Food runs from mouth to anus
Alimentary canal
Exchange of oxygen and carbon dioxide between organism and its enviroment
Respiration
Exchange of gases between red bloodcells
Internal respiration
Exchange of gases between lungs and redbloodcells
External respiration
Which the circulation fluids bathes the organs directly
Open circulatory system
Circulatory fluids in animals
Hemolyph
Blood confined in blood vessel called cardiovascular system
Closed circulatory system