Microbial Metabolism

What is the first step in glycolysis?

• Phosphorylation of glucose

• Decarboxylation of glucose

• Oxidation of glucose

• Dehydration of glucose

Which molecule is formed during the Krebs cycle that is used in the electron transport chain?

• CO2

• ATP

• FADH2

• NADH

What is the final electron acceptor in the electron transport chain?

• nitrogen

• carbon dioxide

• oxygen

• hydrogen

Which type of metabolism produces lactic acid as a byproduct?

• Aerobic metabolism

• Krebs cycle

• Glycolysis

• Anaerobic metabolism

What is the process called when microorganisms use inorganic molecules as electron acceptors in the absence of oxygen?

• Anaerobic respiration

• Fermentation

• Photosynthesis

• Aerobic respiration

In photosynthesis, what molecule is used as a source of electrons to reduce carbon dioxide?

• Nitrogen

• Oxygen

• Glucose

• Water

What are biological catalysts that speed up chemical reactions?

• Proteins

• Nucleic acids

• Hormones

• Enzymes

How are biochemical tests used in the identification of microorganisms?

• Biochemical tests are used to analyze metabolic capabilities and characteristic reactions of microorganisms for identification.

• Biochemical tests are used to identify microorganisms based on their habitat

• Biochemical tests are used to determine the color of microorganisms

• Biochemical tests are used to measure the size of microorganisms

What is the primary function of lipids in microbial metabolism?

• Cell division and growth

• Energy storage and structural components of cell membranes

• Transport of oxygen in the blood

• Regulation of gene expression

What type of reaction involves the transfer of electrons from one molecule to another?

• Addition reaction

• Decomposition reaction

• Oxidation-Reduction (Redox) reaction

• Substitution reaction