3/13 PL Quiz

Question 1

What are endospores

Answer 1

Dormant cells when environmental factors are unsuitable for growth

Question 2

What are endospores highly resistant to

Answer 2

Heat and chemicals

Question 3

What is an indication of how dormant the endospores are

Answer 3

The total absence of ATP

Question 4

What is sporulation dependent on

Answer 4

Nutrient depletion and population density

Question 5

What is the secreted peptide called that results in depression of sporulation genes

Answer 5

CSF

Question 6

What is endospore resistance due to

Answer 6

Outer covering of keratin, dehydrated state, and DNA protective proteins

Question 7

What happens when conditions are suitable again

Answer 7

Endospores germinate into metabolically active vegetative cells

Question 8

What in the store coat resists the staining

Answer 8

Keratin

Question 9

How is malachite green forces into the spore

Answer 9

By steaming the bacterial emulsion

Question 10

What are responsible for producing the endospore

Answer 10

Spore mother cells

Question 11

What are the three places endospores can be located

Answer 11

Central, terminal, sub terminal

Question 12

What shape can endospores be

Answer 12

Spherical or elliptical(oval)

Question 13

What are two types of genra that produce spores

Answer 13

Bacillus and clostridium

Question 14

What is the endospore stain used for

Answer 14

To detect the presence, shape and location of endospores in bacterial cells