2 Basic MORPHOLOGIC FORMS

Question 1

What is the basic morphologic form of yeast?

Answer 1

• Yeast is unicellular.

Question 2

How do most yeast reproduce asexually?

Answer 2

• Most yeast reproduce asexually by budding.

Question 3

What do yeast colonies look like when inoculated on plated media?

Answer 3

• They develop colonies resembling bacterial colonies.

Question 4

Can you describe the appearance of yeast colonies?

Answer 4

• Yeast colonies are moist, creamy, opaque, and pasty.

Question 5

At what temperature does yeast typically grow?

Answer 5

• Yeast grows at 37°C.

Question 6

What is needed for the identification of most yeast species?

Answer 6

• Most yeast species require physiologic/biochemical tests for identification.

Question 7

What is the typical cellular structure of molds?

Answer 7

• Molds are multicellular and filamentous.

Question 8

How would you describe the appearance of mold colonies?

Answer 8

• Mold colonies can appear fluffy, cottony, wooly, or powdery.

Question 9

At what temperature do molds usually grow?

Answer 9

• Molds typically grow at room temperature.