Chapter 23, Diversity of Microbial Life: Archaea, Bacteria, Protists, and Fungi Video Solutions, Principles of Biology

Problem 1

The bacterial phylum that typically produces oxygen gas as the result of photosynthesis is
a. the proteobacteria.
d. all of the above.
b. the cyanobacteria.
e. none of the above.
c. the Gram-positive bacteria.

Christina Sorrentino

Numerade Educator

01:50

Problem 2

The Gram stain is a procedure that microbiologists use to
a. determine if a bacterial strain is a pathogen.
b. determine if a bacterial sample can break down oil.
c. infer the structure of a bacterial cell wall and bacterial response to antibiotics.
d. count bacteria in medical or environmental samples.
e. do all of the above.

Christina Sorrentino

Numerade Educator

01:12

Problem 3

The structures that enable some Gram-positive bacteria to remain dormant for extremely long periods of time are known as
a. akinetes.
d. lipopolysaccharide envelopes.
b. endospores.
e. pili.
c. biofilms.

Christina Sorrentino

Numerade Educator

01:48

Problem 4

What features do protists have in common:
a. Protists primarily live in wet or moist places.
b. Protists are eukaryotes that are not classified as fungi, plants, or animals
c. Protists include algae, protozoa, and species that resemble fungi but are not closely related to them (fungus-like protists)
d. All of the above.
e. None of the above.

Sam James

Numerade Educator

01:22

Problem 5

Protists that move around by means of cilia are the
a. cryptomonad algae.
b. euglenoids.
c. ciliate protozoa.
d. red algae
e. green algae

Joanna Quigley

Numerade Educator

02:17

Problem 6

The protists most closely related to the fungal, plant, and animal kingdoms are
a. Nuclearia, green algae, and choanoflagellates.
b. Plasmodium, diatoms, and Discoba.
c. Jakoba, red algae, and dinoflagellates.
d. Phytophthora, euglenoids, and ciliates.
e. None of the above.

Matthew Gooch

Numerade Educator

02:55

Problem 7

Fungal cells differ from animal cells in that fungal cells
a. lack ribosomes, though these are present in animal cells.
b. lack mitochondria, though these occur in animal cells.
c. have chitin cell walls, whereas animal cells lack rigid walls.
d. lack cell walls, whereas animal cells possess walls.
e. none of the above.

Nicholas Andre

Numerade Educator

05:26

Problem 8

Protists that lack flagella or cilia are the
a. cryptomonad algae.
b. euglenoids.
c. ciliate protozoa.
d. red algae
e. green algae

Noah Boudrie

Numerade Educator

01:07

Problem 9

People use bacteria, protists, or fungi to:
a. make beer and wine.
b. generate renewable biofuels.
c. produce antibiotics and other pharmaceuticals.
d. extract useful enzymes such as DNA polymerase.
e. All of the above.

Joanna Quigley

Numerade Educator