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Biology > Chapter 22:Fungi > Flashcards

Chapter 22:Fungi Flashcards

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1
Q

Parasitic

A

organisms that take in food from a live host and usually cause harm.

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2
Q

Saprophytic

A

organisms that take in food from dead organic matter.

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3
Q

Stolon

A

an aerial hyphae that allows the fungus to spread.

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4
Q

Fungi cell walls are made of…

A

chitin

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5
Q

How do fungi reproduce?

A

by spores

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6
Q

What are examples of edible fungi?

A

Truffles

Field Mushroom

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7
Q

Poisonous Fungi

A

Death Cap

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8
Q

What are Rhizopus?

A

Saphrophytes of bread,fruits and vegetables.

Appears as black circular patches

Secrete enzymes onto the substances and digested nutrients are absorbed.

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9
Q

Hyphae

A

provide extra surface area for digestion and absorption

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10
Q

Stolon

A

Is an aerial hyphae

Allows fungus to spread

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11
Q

Asexual Reproduction

A 
Hyphae grow upwards (sporangiophores)
They swell 
produce sporangium which produce by mitosis
burst to release spores
Grow new hyphae and mycellium
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12
Q

Sexual Reproduction

A 
Two strains(plus&minus)
Two hyphae from different mating strains grow together
Swellings form which touch
nuclei move to form prometangia 
Fertilisation forms diploid zygotes
Zygote germinates by meiosis
Haploid hyphae grows out
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13
Q

Yeast

A 
Unicelluar
Saprophytic
Cell walls made of chitin
Cytoplasm contains many storage vacoules
Round/oval cells
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14
Q

How do yeast respire?

A

Anaerobically by breaking down sugars to make ethanol and carbon dioxide

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15
Q

Alcoholic Ferentation

A

Glucose=Ethanol+Carbon Dioxide

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16
Q

Budding(Yeast Reproduction)

A

Parent cell divides by mitosis
One nucleus enters a small bud on the cell
Bud the seperates from the parent cell

17
Q

Benificial Economic Importance of Fungi

A

Pencillium produce pencillin
Yeast brewing and baking
Rhizopus:Decay&Recycling
Edible Mushroom

18
Q

Harmful Economic Importance of Fungi

A

Disease in humans
Disease in plants
Food spoilage

Biology (31 decks)

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