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Botany > Lecture 20 > Flashcards

Lecture 20 Flashcards

1
Q

Are fungi multi or unicellular

A

Unicellular

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2
Q

What are the Filamentous tube-like strands called

A

hypha

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3
Q

What is Sclerotium

A

hardened mass of mycelium that generally serves as an overwintering stage

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4
Q

What do Saprophytes or Saprobes feed on

A

dead tissues or organic waste (decomposers)

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5
Q

Parasites feed on what

A

feeding on living tissue of a host

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6
Q

What is fungal cell wall and insect exoskeleton made of

A

Chitin

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7
Q

Absorptive heterotrophs

A

•Digest and absorb food
•Release digestive enzymes to breakdown organic material or their food/host

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8
Q

Where do fungi get carbon from

A

Organic sources

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9
Q

What does the tips of Hypha release

A

Enzymes

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10
Q

Products of enzymatic breakdown diffuse to where

A

Back into Hypha

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11
Q

Are fungi more closely related to plants or animals

A

Animals

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12
Q

What do Most phytopathogenic fungi belong to

A

Basidiomycota and Ascomycota

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13
Q

Are sexual spores meiotic or mitotic

A

Meiotic

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14
Q

Are asexual spores meiotic or mitotic

A

Mitotic

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15
Q

Function of spores

A

Ensure that species will disperse to new location

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16
Q

Are spores motile or non-motile

A

Non motile

17
Q

How are spores dispersed

A

•wind
•rain

18
Q

What are fruiting bodies

A

Modified hyphae that make
Asexual spores

19
Q

Name the types of fruiting bodies

A

•Basidia
•Sporangia
•Ascus

20
Q

A hypha with 2 nuclei is called what

A

A zygote

21
Q

A zygote divides to make what

A

A spore

22
Q

What type of conditions is a spore used for

A

For survival
In poor environmental conditions eg lack of nutrients,space and moisture

23
Q

Example of club fungi

A

Basidiomycota

24
Q

Describe Basidiomycota

A

• Club fungi have fruiting bodies which are club-shaped.
• Sexual reproductive structures called basidia
• Include mushrooms, puffballs, and shelf fungi

25
Q

Example of Sac fungi

A

Ascomycota

26
Q

Describe Ascomycota

A

• Most are multicellular (except for yeast)
• Common asexual reproduction
• Sexual Reproduction-asci, ascospores
• Largest phylum of Fungi
• Important plant pathogens
and saprobes

27
Q

Largest phylum of fungi

A

Ascomycota

28
Q

What are oomycetes closely related to

A

algae and to green plants

29
Q

What is oomycetes cell wall made of

A

β-glucans

30
Q

Example of asexual oomycetes

A

Zoospores

31
Q

Example of sexual oomycetes

A

Oospores

Botany (21 decks)

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