Prokaryotic Profiles: The Bacteria and Archaea Part 3 (Endospores)

Question 1

What are endospores?

Answer 1

Extremely resistant, metabolically inactive, dormant structures

Question 2

Are bacterial endospores alive?

Answer 2

Yes, but metabolically inactive

Question 3

_______ _______ _______ cells can undergo sporulation when environmental conditions are not favorable

Answer 3

Metabolically active vegetative

Question 4

Is sporulation a reproductive function for most bacteria?

Answer 4

No

Question 5

Are clostridium sp able to tolerate oxygen?

Answer 5

No

Question 6

What does mesophile mean?

Answer 6

A microorganism that likes our body temperature

Question 7

What is the first step in the sporulation cycle?

Answer 7

Vegetative cell begins to be depleted of nutrients

Question 8

What is the second step in the sporulation cycle?

Answer 8

Chromosome is duplicated and separated

Question 9

What is the third step in the sporulation cycle?

Answer 9

Cell is separated into a sporangium and forespore

Question 10

What is the fourth step in the sporulation cycle?

Answer 10

Sporangium engulfs forespore for further development

Question 11

What is the fifth step in the sporulation cycle?

Answer 11

Sporangium begins to actively synthesize spore layers around forespore

Question 12

What is the sixth step in the sporulation cycle?

Answer 12

Cortex and outer coat layers are deposited

Question 13

What is the seventh step in the sporulation cycle?

Answer 13

Mature endospore

Question 14

What is the eighth step in the sporulation cycle?

Answer 14

Free spore is released with the loss of sporangium

Question 15

What is the ninth step in the sporulation cycle?

Answer 15

Germination: spore swells and releases vegetative cell

Question 16

What are archaea?

Answer 16

Prokaryotic microorganisms

Question 17

Where are many archaea found?

Answer 17

In extreme environments (extremophiles)

Question 18

Archaea are different from members of the domains Bacteria and Eukarya in terms of…

Answer 18

Cell structure
Metabolism
Genetics

Question 19

What is the cell membrane in archaea like?

Answer 19

Long-chain, branched hydrocarbons with esther linkages

Question 20

There are approximately _____ species of fungi

Answer 20

100,000

Question 21

Examples of macroscopic fungi

Answer 21

Mushrooms, puffballs, gill fungi

Question 22

Examples of microscopic fungi

Answer 22

Molds, yeasts

Question 23

Forms of fungi

Answer 23

Unicellular (yeast)
Colonial
Complex / multicellular (mushrooms, puff balls)

Question 24

Protozoa comes from the greek name for..

Answer 24

“First animals”

Question 25

Protozoa: ______ species of single-celled organisms

Answer 25

65,000

Question 26

Most protozoa are…..

Answer 26

Harmless, free-living inhabitants of water and soil

Question 27

A few species of parasites (protozoa) are responsible for…

Answer 27

Hundreds of millions of infections each year

Question 28

Two classifications of helminths

Answer 28

Roundworms and flatworms