28 Questions
What is the process of building complex organic molecules from simpler ones called?
Anabolism
What is the term for the breakdown of complex organic compounds into simpler ones?
Catabolism
Which type of inhibitors compete with the normal substrate by filling the enzyme's active site?
Competitive
How do enzymes increase the speed of a chemical reaction?
Lowering the energy of activation
Which process involves the building of complex organic molecules from simpler ones?
Anabolism
What type of inhibitors do not compete by filling the enzyme's active site?
Allosteric
What is the term for increasing the energy of activation?
Increasing the temperature of the reaction
Which compounds are required to activate many apoenzymes that are inactive by themselves?
ATP
What is the term for a molecule that gains one or more electrons?
Undergoes reduction
Which process does the aerobic electron transport chain perform?
Oxidative phosphorylation
What is the term for the addition of phosphate to a chemical compound?
Phosphorylation
What should be done to activate many apoenzymes that are inactive by themselves?
Adding substrates
What is the primary source of energy for the light-dependent reactions in photosynthesis?
Oxygen
What is the main function of cyclic photophosphorylation in photosynthesis?
Converting electrons to ATP
Which compound is NOT produced during photosynthesis in plants, algae, and cyanobacteria?
Hydrogen sulfide
What is the role of ADP in the Calvin-Benson cycle?
Converted to ATP
Which organisms use electrons from reduced inorganic compounds as a source of energy and CO2 as a source of carbon?
Chemoautotrophs
Metabolic pathways that function in BOTH anabolism and catabolism are called ________ pathways.
Intermediate
Which of the following pairs of pathways are involved in both anabolism and catabolism?
Pentose phosphate pathway; the Krebs cycle
What is the final electron acceptor in fermentation?
Organic molecule
Which statement is true about fermentation?
It produces a large amount of ATP
What type of pathway is the pentose phosphate pathway?
Amphibolic
Which type of organisms use electrons from reduced inorganic compounds as a source of energy and CO2 as a source of carbon?
Chemoautotrophs
In lipid biosynthesis, glycerol is derived from dihydroxyacetone phosphate formed during which process?
Glycolysis
What is the process called when an amine group added to a precursor comes from a preexisting amino acid?
Transamination
Where are the five-carbon sugars of nucleotides derived from?
Pentose phosphate pathway; Entner-Doudoroff pathway
What is the source of energy for Chemoautotrophs?
Reduced inorganic compounds
Which cycle is involved in the formation of dihydroxyacetone phosphate for lipid biosynthesis?
Citric Acid Cycle (Krebs cycle)
Test your knowledge on microbial metabolism by answering multiple-choice questions from CHAPTER 5 Microbial Metabolism prepared by Bradley W. Christian. Identify key concepts such as catabolism, anabolism, photosynthesis, and oxidation.
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