Chapter 12 Flash cards Flashcards by Jenna Saleker

What is mycology

The study of fungi, yeasts, molds, mushrooms

How well did you know this?

Not at all

Perfectly

What are some of the rolls of fungi on the planet

Decompose dead plant matter
Help plant roots absorb water from soil
Human uses- food,produce foods(bread), drugs

How well did you know this?

Not at all

Perfectly

Describe some of the features of yeasts

Single celled fungus

Nonfilamentous and unicellular

How well did you know this?

Not at all

Perfectly

Explain a arachnida

Eight legs, spiders, mites, ticks

How well did you know this?

Not at all

Perfectly

Explain a crustace

Four antennae: crabs, crayfish

How well did you know this?

Not at all

Perfectly

Explain a insecta

Six legs, flies, bees, lice

How well did you know this?

Not at all

Perfectly

Define dimorphism in yeasts

2 forms of growth, yeast like at 37 C

How well did you know this?

Not at all

Perfectly

what is the hyphae on mold

filaments/fibers- a mass of hyphae is called a mycelium

How well did you know this?

Not at all

Perfectly

what are vegetative hyphae

they obtain nutrients

How well did you know this?

Not at all

Perfectly

what are aerial hyphae

involved with reproduction

How well did you know this?

Not at all

Perfectly

what is the thallus

the fungal body

How well did you know this?

Not at all

Perfectly

what is the mycelium

a mass of hyphae

How well did you know this?

Not at all

Perfectly

how does asexual spores in fungi work

produced via mitosis and cell division

How well did you know this?

Not at all

Perfectly

how do Fungi reproduce

sexually and asexually via the formation of spores

How well did you know this?

Not at all

Perfectly

what is conidiospore

not enclosed in a sac

How well did you know this?

Not at all

Perfectly

what is a sporangiospore

enclosed in a sac

How well did you know this?

Not at all

Perfectly

what are sexual spores

require 2 opposite mating strains of same species- zygospores

How well did you know this?

Not at all

Perfectly

nutritional adaptations of fungi include

grow better at a ph of 5
grow in high sugar and salt concentrations
can metabolize
grow in low moisture content

How well did you know this?

Not at all

Perfectly

what are the 4 phyla of fungi

Zygomycota- zygospores
Microsporidia- no mitochondria
Ascomycota- float around like dust
Basidiomycota- mushrooms

How well did you know this?

Not at all

Perfectly

systemic mycosis is

all around within the body- inhalation of spores

How well did you know this?

Not at all

Perfectly

Subcutaneous mycosis is

beneath the skin, still localized

How well did you know this?

Not at all

Perfectly

what is cutaneous mycoses

affect hair skin and nails- direct contact

How well did you know this?

Not at all

Perfectly

what is superficial mycoses

localized ( hair shaft )

How well did you know this?

Not at all

Perfectly

Economic effects of fungi

Saccharomyces- Hepatits B vaccine
Trichoderma- Cellulose
Taxomyces- anti cancer drug
Biocontrols- Kills fungi and termites

How well did you know this?

Not at all

Perfectly

what is a lichen

mutualistic combination of a green alga and fungus

what is the morphology of lichens

Crustose- encrusted Foliose- leaflike Fruticose-Fingerlike

what is the medulla on a lichen

hyphae grown around algal cells

what is the rhizine on a lichen

holdfast- hyphae projections below the body

what is the cortex on a lichen

protective coating over the algal layer

what are some of the uses of lichens in life

dyes for clothes antimicrobial food for herbivores

Green algae

unicellular or multicellular cellulose cell walls gave rise to terrestrial plants

Brown algae

Kelp grown in great lengths found in ice cream and in tires

Red algae

allows them to absorb blue light | produce a lethal toxin- red tide

what are diatoms

unicellular or filamentous

what is domain acid

causes neurological disease

what are dinoflagellates

plankton that is free floating and has cellulose in plasma membrane

what does saxitoxins cause

paralytic shellfish poisoning which causes red tides

what are oomycota

water mold.

what did Phytophthora infesting cause

the Irish potato blight

what are the roles of algae in nature

fix CO2 produces 80% of earth's O2 Algal blooms oil production

what is a vector

arthropods that carry pathogenic microorganisms

what is a Dioecious

separate male and female

what is a monoecious

male and female reproductive systems in one animal

what is paragonimus spp.

lung flunk found in raw crawfish

what are cestodes

tape worms that have a scolex- head and a proglottids- body segments

what is human as definitive host mean

harbor the adult

Human as intermediate host

Harbor larval stage

what are some features of a trematodes

flat and short leaf shape ventral and oral sucker absorb food through cuticle

Define definitive host

Where sexual reproduction happens

Define intermediate host

Site of asexual reproduction

What is Trophozoite

Feeding and growing stage

What is pellicle

Require specialized structures to take in food

What is giardia

Sever diarrheal disease

Trichomonas

Causes trichomonasis

Leishmania is transmitted by

Sand fly bite

What causes African sleeping sickness

Trypanosoma

What is amebic dysentery

Results from cell lysis in the intestines

Toxoplasma Gondii

Transmitted by cats, causes fetal infections and or still birth/ serious complications

Cryptosporidium

Transmitted via feces | Causes waterborne illness

What causes malaria

Plasmodium

Mechanical transmission

Brings fecal matter to the food aka fly

Biological transmission

Transmitted through a vector

Examples of disease caused by vectors

Arachnids and insects

What is trichuris trichiura

Whip work

What is enterobius vermicularis

Pin worm

Dirofilaria immitis

Speed by mosquitoes and causes heart worm

How can helminths live in a host

Lack digestive system Reduced nervous system Lack locomotion Complex reproductive system

Chapter 12 Flash cards

(67 cards)