BSC 116 TEST 1 MB FUNGI EXAM
QUESTIONS CORRECTLY ANSWERED.
The following statements describe something about the body structures or functions of fungi. Identify
those statements that are correct.
Select all that apply.
A.] Mycelia are made up of small-diameter hyphae that form an interwoven mass, providing more
surface area for nutrient absorption.
B.] Some fungi secrete digestive enzymes into the environment and then absorb the digested nutrients.
C.] Nutrients can flow through the entire mycelium in fungi with coenocytic hyphae, but not in fungi
with septate hyphae.
D.] Some fungi can grow as either filamentous or single-celled forms.
E.] All fungi are heterotrophs; some species live as decomposers and others as symbionts.
F.] Cellulose gives rigidity and strength to the cell walls of fungi - CORRECT ANSWER A, B, D & E
Select the correct statement(s) about the origin of fungi.Select all that apply.
A.] Multicellularity probably arose independently in fungi and animals.
B.] Fungi evolved after the first plants colonized land.
C.] Fungi are more closely related to plants than to animals. - CORRECT ANSWER A
Which feature seen in chytrids supports the hypothesis that they diverged earliest in fungal evolution? -
CORRECT ANSWER flagellated spores
For several decades now, amphibian species worldwide have been in decline. A significant proportion of
the decline seems to be due to the spread of the chytrid fungus, Batrachochytrium dendrobatidis (Bd).
Chytrid sporangia reside within the epidermal cells of infected animals, animals that consequently show
areas of sloughed skin. They can also be lethargic, which is expressed through failure to hide and failure
to flee. The infection cycle typically takes four to five days, at the end of which zoospores are released
from sporangia into the environment. In some amphibian species, mortality rates approach 100%; other
species seem able to survive the infection.
QUESTIONS CORRECTLY ANSWERED.
The following statements describe something about the body structures or functions of fungi. Identify
those statements that are correct.
Select all that apply.
A.] Mycelia are made up of small-diameter hyphae that form an interwoven mass, providing more
surface area for nutrient absorption.
B.] Some fungi secrete digestive enzymes into the environment and then absorb the digested nutrients.
C.] Nutrients can flow through the entire mycelium in fungi with coenocytic hyphae, but not in fungi
with septate hyphae.
D.] Some fungi can grow as either filamentous or single-celled forms.
E.] All fungi are heterotrophs; some species live as decomposers and others as symbionts.
F.] Cellulose gives rigidity and strength to the cell walls of fungi - CORRECT ANSWER A, B, D & E
Select the correct statement(s) about the origin of fungi.Select all that apply.
A.] Multicellularity probably arose independently in fungi and animals.
B.] Fungi evolved after the first plants colonized land.
C.] Fungi are more closely related to plants than to animals. - CORRECT ANSWER A
Which feature seen in chytrids supports the hypothesis that they diverged earliest in fungal evolution? -
CORRECT ANSWER flagellated spores
For several decades now, amphibian species worldwide have been in decline. A significant proportion of
the decline seems to be due to the spread of the chytrid fungus, Batrachochytrium dendrobatidis (Bd).
Chytrid sporangia reside within the epidermal cells of infected animals, animals that consequently show
areas of sloughed skin. They can also be lethargic, which is expressed through failure to hide and failure
to flee. The infection cycle typically takes four to five days, at the end of which zoospores are released
from sporangia into the environment. In some amphibian species, mortality rates approach 100%; other
species seem able to survive the infection.
