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Fungus Picture Notes. Deuteromycota. Zygomycota. Ascomycota. Basidiomycota. Concept Map. Section 21-2. Fungi. are divided into the phyla. includes. includes. includes. includes. Common molds. Sac fungi. Club fungi. Imperfect fungi. B. D. C. E. A.

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slide2

Deuteromycota

Zygomycota

Ascomycota

Basidiomycota

Concept Map

Section 21-2

Fungi

are divided into the phyla

includes

includes

includes

includes

Common molds

Sac fungi

Club fungi

Imperfect fungi

slide3

B

D

C

E

A

slide4

Rhizoid: rootlike hypha that penetrates the surface of an object

Sporangium: structure that contains spores

Sporangiophore: specialized hyphae where sporangia are found

Spores: haploid reproductive cell

Stolon: a stem like hypha that runs along the surface of an object

slide5

Zygospore (2N)

Sporangium

Gametangia

Spores (N)

Sporangium

Zygospore (2N)

+ Mating type (N)

Stolons

Spores (N)

- Mating type (N)

Sporangiophore

Rhizoids

Figure 21-5 The Life Cycle of Rhizopus

Section 21-2

FERTILIZATION

MEIOSIS

Sexual Reproduction

Asexual Reproduction

Diploid

Haploid

sac fungi yeast
Sac Fungi- Yeast

bud

cell wall

nucleus

vacuole

cytoplasm

ascomycota sac fungi structures
Ascomycota (Sac Fungi) Structures

Bud: reproductive product after yeast cells undergo budding

Cell Wall: protective structure surrounding yeast cell

Cytoplasm: liquid material that transport substances within the yeast cell

Nucleus: control center of yeast cell that holds genetic information

Vacuole: storage site for yeast cell

slide9

Fruiting body (N + N)

Gills lined with basidia

Gills

Cap

Stalk

Button

Base

Basidia (N + N)

Secondary mycelium (N + N)

Primary mycelium (N)

Zygote (2N)

- Mating type (N)

+ Mating type (N)

Basidiospores (N)

Figure 21-8 The Life Cycle of a Basidiomycete

Section 21-2

FERTILIZATION

HYPHAE FUSE

Haploid

Diploid

MEIOSIS

slide10

cap

gills

basidium

stipe

rhizoids

slide11

Basidium: spore-bearing structure of a basidiomycete

Cap: top section of the fruiting body

Gills: downward like projection structures that hold the basidium

Rhizoids: a root like hypha that penetrates the surface of an object

Stipe: base of the fruiting body

slide12

Figure 21-2 The Structure of a Mushroom

Section 21-1

Fruiting body

Hyphae

Mycelium

slide13

Fruiting body:

reproductive structure of fungus that develops from a mycelium

Hyphae: tiny filament that makes up a multicellular fungus or a water mold

Mycelium: many hyphae tangled together into a thick mass

slide14

Nuclei

Cell wall

Cytoplasm

Cross wall

Nuclei

Cytoplasm

Cell wall

Hyphae Structure

Section 21-1

Hyphae With Cross Walls

Hyphae Without Cross Walls

slide15

Fruiting body (N + N)

Hyphae (N + N)

Ascus (N + N)

Zygote (2N)

Hyphae (N)

Asci

Gametangia

+ Mating type (N)

- Mating type (N)

Ascus

Conidia (N)

8 Ascospores (N)

Hypha (N)

Conidiophore

Hypha (N)

Figure 21-7 The Life Cycle of an Ascomycete

Section 21-2

Diploid

Haploid

FERTILIZATION

HYPHAE FUSE

MEIOSIS

Sexual Reproduction

Asexual Reproduction

slide16

Interest Grabber continued

Section 21-3

Classify each of the following fungi as decomposers, parasites, or organisms that live in a mutually beneficial relationship with another species.

  • 1. A network of fungi covers the roots of fir trees. The trees provide the fungi with food, and the fungi help the tree roots absorb water.
  • 2. Fungi living on growing corn stalks destroy corn kernels.
  • 3. Mushrooms growing on a fallen log obtain food from the decaying wood.
slide17

Section Outline

Section 21-3

  • 21–3 Ecology of Fungi

A. All Fungi Are Heterotrophs

B. Fungi as Decomposers

C. Fungi as Parasites

1. Plant Diseases

2. Human Diseases

3. Other Animal Diseases

D. Symbiotic Relationships

1. Lichens

2. Mycorrhizae

video 1

Video

Fungi

Video 1
  • Click the image to play the video segment.
slide19

Lichen Structure

Section 21-3

Densely packed hyphae

Layer of algae/ cyanobacteria

Loosely packed hyphae

Densely packed hyphae

internet

Go Online

Internet
  • Interactive test
  • Articles on fungi
  • For links on fungi go to www.SciLinks.org and enter the Web Code as follows: cbn-6211.
  • For links on asexual reproduction, go to www.SciLinks.org and enter the Web Code as follows: cbn-6212.
section 1 answers

Interest Grabber Answers

1. What are some things that you know about mushrooms?

Possible answers: Mushrooms grow from the soil in dark, damp places. They are eaten by animals, including people. They are soft.

2. Would you classify mushrooms as an animal, a plant, or something else? Give reasons for your answer.

Students will likely say that mushrooms should be classified as something other than plants or animals. Possible reasons: Mushrooms grow in soil, as plants do, but they aren’t green. Mushrooms aren’t animals because they don’t move from place to place as animals do.

Section 1 Answers
section 2 answers

Interest Grabber Answers

1. List as many examples of fungi that you can.

Mushrooms, mold, yeast, mildew, truffles

2. How are fungi helpful to humans?

They are sources of food and are used in making bread, wine, and medicines.

3. How are fungi harmful to humans?

Some are poisonous and can cause illness or death.

Section 2 Answers
section 3 answers

Interest Grabber Answers

Section 3 Answers
  • Classify each of the following fungi as decomposers, parasites, or organisms that live in a mutually beneficial relationship with another species.
  • 1. A network of fungi covers the roots of fir trees. The trees provide the fungi with food, and the fungi help the tree roots absorb water.
  • Organisms that live in a mutually beneficial relationship with another species
  • 2. Fungi living on growing corn stalks destroy corn kernels.
  • Parasites
  • 3. Mushrooms growing on a fallen log obtain food from the decaying wood.
  • Decomposers
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