Microbial Metabolism Chapter 5 Quiz

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Questions and Answers

What is the process of building complex organic molecules from simpler ones called?

  • Catabolism
  • Anabolism (correct)
  • Photosynthesis
  • Oxidation

What is the term for the breakdown of complex organic compounds into simpler ones?

  • Catabolism (correct)
  • Photosynthesis
  • Oxidation
  • Anabolism

Which type of inhibitors compete with the normal substrate by filling the enzyme's active site?

  • Competitive (correct)
  • Allosteric
  • Ribosomal
  • Noncompetitive

How do enzymes increase the speed of a chemical reaction?

<p>Lowering the energy of activation (B)</p> Signup and view all the answers

Which process involves the building of complex organic molecules from simpler ones?

<p>Anabolism (C)</p> Signup and view all the answers

What type of inhibitors do not compete by filling the enzyme's active site?

<p>Allosteric (D)</p> Signup and view all the answers

What is the term for increasing the energy of activation?

<p>Increasing the temperature of the reaction (D)</p> Signup and view all the answers

Which compounds are required to activate many apoenzymes that are inactive by themselves?

<p>ATP (D)</p> Signup and view all the answers

What is the term for a molecule that gains one or more electrons?

<p>Undergoes reduction (D)</p> Signup and view all the answers

Which process does the aerobic electron transport chain perform?

<p>Oxidative phosphorylation (D)</p> Signup and view all the answers

What is the term for the addition of phosphate to a chemical compound?

<p>Phosphorylation (A)</p> Signup and view all the answers

What should be done to activate many apoenzymes that are inactive by themselves?

<p>Adding substrates (C)</p> Signup and view all the answers

What is the primary source of energy for the light-dependent reactions in photosynthesis?

<p>Oxygen (C)</p> Signup and view all the answers

What is the main function of cyclic photophosphorylation in photosynthesis?

<p>Converting electrons to ATP (D)</p> Signup and view all the answers

Which compound is NOT produced during photosynthesis in plants, algae, and cyanobacteria?

<p>Hydrogen sulfide (C)</p> Signup and view all the answers

What is the role of ADP in the Calvin-Benson cycle?

<p>Converted to ATP (C)</p> Signup and view all the answers

Which organisms use electrons from reduced inorganic compounds as a source of energy and CO2 as a source of carbon?

<p>Chemoautotrophs (D)</p> Signup and view all the answers

Metabolic pathways that function in BOTH anabolism and catabolism are called ________ pathways.

<p>Intermediate (C)</p> Signup and view all the answers

Which of the following pairs of pathways are involved in both anabolism and catabolism?

<p>Pentose phosphate pathway; the Krebs cycle (A)</p> Signup and view all the answers

What is the final electron acceptor in fermentation?

<p>Organic molecule (C)</p> Signup and view all the answers

Which statement is true about fermentation?

<p>It produces a large amount of ATP (A)</p> Signup and view all the answers

What type of pathway is the pentose phosphate pathway?

<p>Amphibolic (A)</p> Signup and view all the answers

Which type of organisms use electrons from reduced inorganic compounds as a source of energy and CO2 as a source of carbon?

<p>Chemoautotrophs (D)</p> Signup and view all the answers

In lipid biosynthesis, glycerol is derived from dihydroxyacetone phosphate formed during which process?

<p>Glycolysis (A)</p> Signup and view all the answers

What is the process called when an amine group added to a precursor comes from a preexisting amino acid?

<p>Transamination (D)</p> Signup and view all the answers

Where are the five-carbon sugars of nucleotides derived from?

<p>Pentose phosphate pathway; Entner-Doudoroff pathway (C)</p> Signup and view all the answers

What is the source of energy for Chemoautotrophs?

<p>Reduced inorganic compounds (D)</p> Signup and view all the answers

Which cycle is involved in the formation of dihydroxyacetone phosphate for lipid biosynthesis?

<p>Citric Acid Cycle (Krebs cycle) (D)</p> Signup and view all the answers

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