Podcast
Questions and Answers
Fungi are autotrophs.
Fungi are autotrophs.
False (B)
Fungi spores are haploid.
Fungi spores are haploid.
True (A)
Fungi have true roots, stems, and leaves.
Fungi have true roots, stems, and leaves.
False (B)
How do fungi differ from plants?
How do fungi differ from plants?
Which characteristic is shared by all fungi that helps them obtain nutrients?
Which characteristic is shared by all fungi that helps them obtain nutrients?
What might one expect about plants without mycorrhizae?
What might one expect about plants without mycorrhizae?
In many fungi, both asexual and sexual reproduction involve what?
In many fungi, both asexual and sexual reproduction involve what?
What type of relationship exists between a fungus and algae in a lichen?
What type of relationship exists between a fungus and algae in a lichen?
An organism cannot be a fungus if it is what?
An organism cannot be a fungus if it is what?
Why are humans interested in rusts?
Why are humans interested in rusts?
What carbohydrate makes up the cell walls of fungi?
What carbohydrate makes up the cell walls of fungi?
What structure has a symbiotic relationship with fungi in mycorrhizae?
What structure has a symbiotic relationship with fungi in mycorrhizae?
What do all fungi do?
What do all fungi do?
Fungi do not carry out what process?
Fungi do not carry out what process?
Fungi resemble plants in that they both always have what?
Fungi resemble plants in that they both always have what?
What is the tangled mass of cells that makes up the body of a fungus?
What is the tangled mass of cells that makes up the body of a fungus?
How do most fungi reproduce?
How do most fungi reproduce?
What is the dark fuzz that grows on bread an example of?
What is the dark fuzz that grows on bread an example of?
Bread rises because fermentation by yeast produces what?
Bread rises because fermentation by yeast produces what?
Yeasts obtain energy by alcoholic fermentation.
Yeasts obtain energy by alcoholic fermentation.
Which statement about Penicillium is correct?
Which statement about Penicillium is correct?
An important role of fungi in ecosystems is what?
An important role of fungi in ecosystems is what?
Millions of years ago, fungi might have been important to the success of what?
Millions of years ago, fungi might have been important to the success of what?
Fungi feed on what?
Fungi feed on what?
The breakdown of dead organisms is sped up by the fungal production of what?
The breakdown of dead organisms is sped up by the fungal production of what?
The human disease ringworm is caused by what?
The human disease ringworm is caused by what?
Which statement about lichens is correct?
Which statement about lichens is correct?
The association of plants and fungi in mycorrhizae illustrates what type of relationship?
The association of plants and fungi in mycorrhizae illustrates what type of relationship?
The relationship between a fungus and alga in a lichen is also an example of what?
The relationship between a fungus and alga in a lichen is also an example of what?
Fungi are prokaryotic heterotrophs.
Fungi are prokaryotic heterotrophs.
Fungi absorb their food.
Fungi absorb their food.
Fungi cell walls are made of cellulose.
Fungi cell walls are made of cellulose.
Fungi recycle nutrients in the ecosystem.
Fungi recycle nutrients in the ecosystem.
Early fungi may have helped plants obtain nutrients.
Early fungi may have helped plants obtain nutrients.
Chitin, the material that forms fungal cell walls, is a complex what?
Chitin, the material that forms fungal cell walls, is a complex what?
Fungi break down complex organic matter by releasing what?
Fungi break down complex organic matter by releasing what?
Flashcards
How do fungi differ from plants?
How do fungi differ from plants?
Fungi rely on consuming organic material for nutrition, unlike plants.
Characteristic shared by all fungi for obtaining nutrients?
Characteristic shared by all fungi for obtaining nutrients?
Fungi secrete enzymes externally to break down organic matter before absorbing nutrients.
What to expect from plants without mycorrhizae?
What to expect from plants without mycorrhizae?
Likely suited to nutrient-rich soils due to compromised nutrient absorption without mycorrhizae.
Fungi reproduction often involves what?
Fungi reproduction often involves what?
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Relationship between fungus and algae in lichens?
Relationship between fungus and algae in lichens?
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An organism cannot be a fungus if it is what?
An organism cannot be a fungus if it is what?
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Why are humans interested in rusts?
Why are humans interested in rusts?
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Carbohydrate in fungi cell walls?
Carbohydrate in fungi cell walls?
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Structure with symbiotic relationship with mycorrhizae?
Structure with symbiotic relationship with mycorrhizae?
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What do all fungi do?
What do all fungi do?
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Fungi do not carry out what process?
Fungi do not carry out what process?
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Fungi resemble plants in that they both always have what?
Fungi resemble plants in that they both always have what?
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What is the tangled mass of cells in a fungus?
What is the tangled mass of cells in a fungus?
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How do most fungi reproduce?
How do most fungi reproduce?
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Dark fuzz on bread is an example of what?
Dark fuzz on bread is an example of what?
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Why bread rises due to yeast?
Why bread rises due to yeast?
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Statement about Penicillium?
Statement about Penicillium?
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Important role of fungi in ecosystems?
Important role of fungi in ecosystems?
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Fungi may have been important to the success of what?
Fungi may have been important to the success of what?
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Fungi feed on what?
Fungi feed on what?
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Breakdown of dead organisms is sped up by what?
Breakdown of dead organisms is sped up by what?
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Human disease ringworm is caused by what?
Human disease ringworm is caused by what?
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Statement about lichens?
Statement about lichens?
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Association of plants and fungi in mycorrhizae illustrates what?
Association of plants and fungi in mycorrhizae illustrates what?
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Relationship between fungus and alga in a lichen is also what?
Relationship between fungus and alga in a lichen is also what?
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Chitin, the material that forms fungal cell walls, is a complex what?
Chitin, the material that forms fungal cell walls, is a complex what?
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Fungi break down complex organic matter by releasing what?
Fungi break down complex organic matter by releasing what?
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Study Notes
Fungi Overview
- Fungi are not autotrophs; they are heterotrophic organisms that absorb nutrients.
- Fungi reproduce through both asexual and sexual methods, often involving the shedding of haploid spores.
Characteristics of Fungi
- Fungi do not have true roots, stems, or leaves.
- Fungi possess cell walls made of chitin, a complex polysaccharide, unlike plants which have cell walls made of cellulose.
- All fungi absorb their food and do not perform photosynthesis.
Reproduction and Nutrition
- Fungi spores are haploid, contributing to genetic diversity in reproduction.
- Key process for nutrient acquisition involves external digestion facilitated by the release of digestive enzymes.
- Fungi can feed on both living and dead organisms.
Symbiotic Relationships
- Mycorrhizae illustrate mutualism, where fungi associate with plant roots to enhance nutrient absorption.
- Lichens, formed by the symbiotic relationship between a fungus and an alga or cyanobacteria, are also examples of mutualism.
Ecological Role
- Fungi play a crucial role in ecosystems by breaking down dead organisms, thereby recycling nutrients.
- Fungal fermentation processes produce carbon dioxide, which is vital in various biological processes, such as bread rising through yeast activity.
Human Relevance
- Certain fungi, like Penicillium, are valued for their medical significance, being the source of penicillin.
- Some fungi can be harmful, such as rusts that affect crop plants and ringworm causing disease in humans.
Miscellaneous Facts
- Early fungi may have facilitated the nutrient acquisition for plants.
- Fungal networks, known as mycelium, serve as the body of the fungus and are essential for its growth and reproduction.
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