Metabolic PathwaysWhy do pathwqys affect many pathways? Use water to cleave a bond. Carrier molecules are made from: Common themes in metabolic pathways. Irreversible Have a committed step - irreversible step Highly regulated Compartmentalized.
Biology Chapter 8: An Introduction to Metabolism Flashcards | Quizlet
What are the two major major classes of reactions in metabolism? In metabolism a series of reactions is called? What is a catabolic pathway? What is an anabolic pathway? Which pathway releases energy? Is the catabolic pathway exergonic or endergonic? What happens to the energy released from the catabolic pathway?
What are precursor metabolites of anabolism? Are anabolic pathway exergonic or endergonic? Anabolic pathways build which means they require? Where does the energy from anabolic pathways come from? What is an electron donor?
What is an electron acceptor? Is an electron acceptor reduced or oxidized? Why is an electron acceptor reduced? Is an electron donor reduced or oxidized? Oxidation involves loss; reduction involves gain. How is a molecule reduced? How is an electron oxidized?
What is a dehydrogenation reaction? Biological oxidation reaction involving the loss of hydrogen atoms. What do cells use to carry electrons? Derived from vitamins, what are three important carrier molecules? Substrate-level phosphorylation, Oxidative phosphorylation, and photophosphorylation. What is substrate-level phosphorylation? What is oxidative phosphorylation? Can ADP be used over and over again? Metabolism requires energy from where?
In metabolism, where is energy stored? Cells catabolize nutrients to form what? In an anabolic reaction, what 3 things are used?
How do cells grow? When do cells reproduce? Anabolic pathways require less energy than they release? They require MORE energy than they release. Do electron reactions always occur simultaneously? What is a catalyst? Organic catalyst are known as? What is a substrate?
What are the 6 basic categories of enzymes? Hydrolases, Isomerase, ligases or polymerases, lyases, oxidoreductases, transferases. What is an apoenzyme? What is a cofactor? All coenzyme are what? What is the active enzyme called when a apoenzyme binds with its cofactor? Not all enzymes are proteinous, some are RNA molecules called? Enzymes catalyze reactions by lowering what? Enzymes are needed if metabolism is to occur? What are the 4 things that influence enzymatic reactions?
Temp, pH, enzyme and substrate concentrations, and presence of inhibitors. Describe the process of enzymatic activity?
Bonds in substrate are broken or linked forming 2 products. Do temperature effect enzyme-substrate shape? What is optimum temp for enzymatic activity? What is it called when an enzyme is not functioning or shaped properly? What are the 3 types of enzymatic inhibitors? Do enzymatic inhibitors denature enzymes? No chemical reaction to product occurs. Can be permanent or reversible. How can you overcome reversible competitive inhibitors?
What is an allosteric site? What are the 2 types of non-competitive inhibitiors? Allosteric inhibitiory and excitatory allosteric control.