Microbiology Midterm

The slime layer provides bacteria greater pathogenicity as compared to the capsule.

False

The short, numerous appendages used by some bacterial cells for adhering to surfaces are called _____.

Fimbriae

All of the following structures contribute to the ability of pathogenic bacteria to cause disease except the _____.

Inclusions

A(n) _______ originates from the Golgi apparatus as one type of vesicle that contains a variety of enzymes for intracellular digestion.

Lyosome

There are nine peripheral pairs and one central pair of _______ found inside eukaryotic flagella and cilia.

Microtubules

Filamentous fungi are called

Molds

The eukaryotic cell's glycocalyx is ________.

Mostly polysaccharide

Chemotaxis refers to the ability to ________.

Move in response to a chemical

Movement of a cell toward a chemical stimulus is termed _____.

Positive chemotaxis

The most immediate result of destruction of a cell's ribosomes would be ________.

Protein synthesis would stop

The transfer of genes during bacterial conjugation involves rigid, tubular appendages called _____.

Sex Pili

Bacteria in the genus Mycoplasma and bacteria called L-forms lack cell walls.

True

Eukaryotic mitochondria have their own 70S ribosomes and circular DNA.

True

Rough endoplasmic reticulum is studded with ribosomes.

True

The outcome of the Gram stain is based on differences in the cell's _____.

Wall

The term that refers to flagella at both poles is _____.

amphitrichous

The cytoskeleton

helps maintain cell shape Provides support Functions in movements of the cytoplasm Anchors organelles

Which is not a characteristic of fungi?

photosynthetic

Protists with contractile vacuoles

use them to expel excess water from the cell