sugar metabolism ob

What is the primary source of carbon and energy for bacteria in dental plaque?

• Endogenous sources

• Saliva

• Exogenous sources

• Intracellular glycolytic intermediates

Which bacteria is known for producing lactic acid from sugar metabolism?

• S. mutans

• Veillonella sp.

• Oral streptococci

• Lactobacilli

What type of acid is produced by the fermentation of carbohydrates?

• Formic acid

• Citric acid

• Lactic acid

• Acetic acid

Which process is primarily used by cariogenic bacteria for energy production?

• Aerobic respiration

• Anaerobic glycolysis

• Krebs cycle

• Beta-oxidation

What is the role of EPS in dental plaque?

• Energy storage

• Bacterial adhesion

• Acid production

• Nutrient absorption

Which compound is formed from the oxidation of glucose during glycolysis?

• Lactate

• Pyruvate

• Acetyl-CoA

• Ethanol

What is the effect of fluoride on sugar transport systems in bacteria?

• No effect

• Enhances transport

• Disrupts transport

• Increases sugar uptake

Which type of linkages are involved in the formation of dextran?

• Alpha-1:4 linkages

• Beta-1:6 linkages

• Alpha-1:6 linkages

• Beta-1:3 linkages

What is the primary end product of fermentation by yeast?

• Carbon dioxide

• Ethanol

• Acetic acid

• Lactic acid

Which system operates optimally at neutral pH for sugar metabolism?

• PEP-PTS

• Glucose permease

• Anaerobic glycolysis

• Multiple sugar metabolism system