Lecture 3

Question 1

Which of these is not a physical characteristic one uses to classify prokaryotes?

Answer 1

Differential staining
photosynthetic or non photosynthetic
Motile or nonmotile
Unicellular or colony forming filamentous
Formation of spores or division by transverse binary fission

Question 2

Which of these is not a molecular characteristic one uses to classify prokaryotes?

Answer 2

Amino acid sequences, guanine and cytosine percentages, nucleic acid hybridization, gene and rna sequencing, whole genome sequencing

Question 3

What is the name of the manual used to classify prokaryotes?

Answer 3

Bergey’s Manual

Question 4

According to the video Bacteria, are all bacteria bad?

Answer 4

No

Question 5

According to the video Bacteria, regarding the bacteria that colonize your skin, it is good or bad? (and know why or why not)

Answer 5

Good, because it keeps harmful strains and other types of pathogens from growing

Question 6

According to the video Bacteria, which statement describes a way bacteria can be beneficial? (the video describes four ways)

Answer 6

Bacteria that colonize the skin keep harmful strains and other pathogens from growing

Bacteria in teh digestive system actually help break down food and some cna produce certain vitamins

Some are used in producing foods

In ecosystems, bacteria have an important role as decomposers

Question 7

According to the video Bacteria, do antibiotics work on viruses?

Question 8

According to the video Bacteria, many bacterial species have a plasmid. What is the definition of a plasmid?

Question 9

There are two kinds of prokaryotes on earth, Domain Bacteria and Domain Archaea. Which statement does not describe a difference between these two Domains

Question 10

What is the purpose of the cell wall of prokaryotes

Question 11

What is the definition of the peptidoglycan sometimes found in prokaryotes?

Question 12

What is the difference between gram-positive and gram-negative bacteria?

Question 13

Which statement describes the function or composition of a bacterial flagellum?

Question 14

Which statement describes the function or composition of bacterial pili?

Question 15

Which statement describes the function or composition of bacterial endospores?

Question 16

Which statement does not describe the cellular interior of a basic bacterial cell?

Question 17

Prokaryotes reproduce rapidly, allowing genetic variations to spread quickly through a population. How does this spreading of genetic information occur?

Question 18

Certain factors can increase the likelihood of mutations occurring in bacterial cells. Which statement does not describe one of those factors?

Question 19

What can be the result of a genetic (DNA or plasmid) mutation in a prokaryote?

Question 20

Which statement describes a photoautotrophic bacteria?

Question 21

Which statement describes a chemoautotrophic bacteria?

Question 22

Which statement describes photoheterotrophic bacteria?

Question 23

Which statement describes chemoheterotrophic bacteria?

Question 24

Which statement describes bacteria as a plant pathogen?