Micro Practice Quiz #2 - Bacterial Structure & Metabolism

What starting carbohydrate is metabolized for use by bacteria?

Glucose

Which of the following bacterial appendages enables the cell to adhere to the surfaces of other bacteria?

fimbriae

What is the function of endospores?

ensure survival of the bacteria through periods of environmental stress

Which biochemical pathway for bacterial metabolism occurs anaerobically?

Embden-Meyerhof-Parnas (EMP) pathway

oxidation

fermentation

Pentose Phosphate Pathway

Fermentation

What is the definition of prokaryote?

unicellular organism that lacks a membrane-bound nucleus

What are the three major mechanisms that microorganisms use to acquire new genes?

transformation, transduction, conjugation

In which phase of the microbial growth curve do the bacteria reproduce at a fast rate?

exponential phase

Bacteria utilize glucose via the following three pathways:

EMP pathway, Pentose phosphate, Entner-Doudoroff pathway

How are fungi classified?

Eukaryotes

What is the major difference between eukaryotes and prokaryotes?

Only eukaryotes have a nucleus

Which of the following comments regarding gram positive and gram negative organisms is accurate?

gram-positive organisms have a thin peptidoglycan layer

lipopolysaccharide content is high in gram-negative organisms

gram-positive organims have an outer membrane

teichoic acids are present in gram-negative organisms

lipopolysaccharide content is high in gram-negative organisms

What is the role of the capsule?

Protects the organism from destruction