6 Written questions
6 Multiple choice questions
- An organism that only carries out fermentation; such organisms cannot use oxygen and also may be poisoned by it.
- The gain of electrons by a substance involved in a redox reaction; always accompanies oxidation
- One of the compounds that form between the initial reactant and the final product in a metabolic pathway, such as between glucose and pyruvate in glycolysis
- Energy-coupling mechanics that uses the energy of hydrogen ion gradients across membranes to phosphorylate ADP; powers most ATP synthesis in cells
- The metabolic cycle fueled by acetyl CoA formed after glycolysis in cellular respiration. Chemical reactions in the citric acid cycle complete the metabolic breakdown of glucose molecules to carbon dioxide. The cycle occurs in the matrix of mitochondria and supplies most of the NADH molecules that carry energy to the electron transport chains. The second major stage of cellular respiration.
- A cluster of several membrane proteins that function in chemiosmosis with adjacent electron transport chains, using the energy of a hydrogen ion concentration gradient to make ATP
6 True/False questions
dehydrogenase → An enzyme that catalyzes a chemical reaction during which one or more hydrogen atoms are removed from a molecule
oxidative phosphorylation → The formation of ATP by an enzyme directly transferring a phosphate group to ADP from an organic molecule
acetyl CoA → The gain of electrons by a substance involved in a redox reaction; always accompanies oxidation
oxidation → The loss of electrons from a substance involved in a redox reaction; always accompanies reduction
kilocalories → a quantity of heat equal to 1,000 calories. Used to measure the energy content of food, it is usually called a "Calorie"
lactic acid fermentation → The conversion of pyruvate from glycolysis to carbon dioxide and ethyl alcohol