Cellular Respiration Flashcards

Flashcards covering vocabulary related to cellular respiration.

Cellular Respiration

An exothermic chemical reaction in which chemical energy is converted into ATP, kinetic and heat energy by ALL life forms (except certain types of bacteria and yeasts)

Exothermic Reactions

Reactions that release energy from the chemical bonds of molecules

Glycolysis

The first step of cellular respiration, which starts in the cytoplasm

Oxidative decarboxylation of pyruvate

Takes place in the mitochondria matrix after glycolysis

Krebs Cycle (Citric Acid Cycle)

Another step in cellular respiration that occurs in the mitochondria matrix

Electron Transport Chain

A stage of cellular respiration that occurs in the cristae

Oxidative Phosphorylation (Chemiosmosis)

A step of cellular respiration that occurs in the cristae

Lactic Acid Fermentation or Alcohol fermentation

A process where pyruvic acid cannot enter the mitochondria and stays in the cytoplasm to enter another reaction

Lactic Acid fermentation

Takes place in animal cells in the absence of oxygen

Alcohol fermentation

Takes place in plant and yeast cells in the absence of oxygen

Heterotrophs

Organisms who can not make their own energy molecules (food) and must eat other organisms

Consumers

Organisms who eat other organisms to obtain energy