Lec 8

Question 1

Imperfect fungi reproductive sexual
T/F?

Answer 1

F, Asexual by spores and budding

Question 2

Are fungi which do not fit into the commonly established taxonomic classifications of fungi

Answer 2

Deuteromycota (imperfect fungi)

Question 3

Deuteromycota sexual form of reproduction has been observed.
T/F?

Answer 3

F, has never been observed

Question 4

Causes early blight of potato, Leaf spot disease in Withania somnifera and can infest many other plants.

Answer 4

Alternaria alternata

Question 5

• club-shaped spores are single or form long chains.
• can grow thick colonies. usually green, black, gray.

Answer 5

Alternaria

Question 6

are facultative plant pathogens

Answer 6

Rhizoctonia

Question 7

causes a wide range of commercially significant plant diseases.

Answer 7

Rhizoctonia solani

Question 8

Photobiont on lichen are only green alga
T/F?

Answer 8

F, Either a green alga or a cyanobacterium.

Question 9

• are one of the most successful mutualistic association.
• are the pioneer inhabitants of the harsh environments
• are extremely sensitive to air pollution especially SO2.

Answer 9

Lichens

Question 10

Why lichen are slow growing?

Answer 10

because thalli are inactive when dry – only grow when wetted.

Question 11

leaf-like thalli with an upper and lower cortex, attached to substrate by rhizines.
Which type of Lichen morphology?

Answer 11

Foliose

Question 12

scale-like thalli, lack a lower cortex, thus attached directly to the substrate by medullary hyphae.
Which type of Lichen morphology?

Answer 12

Crustose

Question 13

plant-like or thread like thalli, attached to substrate by holdfast.
Which type of Lichen morphology?

Answer 13

Fruticose

Question 14

Crustose thalli have complex structure than foliose and fruticose thalli.
T/F?

Answer 14

F, have simpler structure

Question 15

is the breakdown of sugar by yeast into carbon dioxide and ethyl alcohol in the absence of oxygen is called alcoholic fermentation.

Answer 15

Anaerobic fermentation

Question 16

are applied in food industries to make bread, wine and beer, but also in non-food industries, such as the Biofuel

Answer 16

Yeast fermentations

Question 17

Yeast is a Good source of protein, B vitamins, and minerals, Used in bread making
T/F?

Answer 17

T

Question 18

Some yeasts are opportunistic pathogens and can cause a range of diseases, depending on?

Answer 18

1. Type of yeast.
2. Location of infection.
3. Status of immune system.