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Fungi, Algae, Protozoans, and Helminths

Total questions: 39

Worksheet time: 20mins

Name
Class
Date
1.

Which one of the following statements about fungi is true?

a)

All fungi are unicellular

b)

All fungi are eukaryotic

c)

All fungi are autotrophic

d)

Most fungi are anaerobic

e)

Most fungi are pathogenic to humans

2.

Long filaments of fungal cells joined together are:

a)

Yeasts

b)

Spores

c)

Stipes

d)

Septa

e)

Hyphae

3.

A mold obtains nutrients by absorption through:

a)

Vegetative hyphae

b)

Aerial hyphae

c)

Blastoconidia

d)

The ascus

e)

Yeasts

4.

Fungal reproductive spores are produced:

a)

By yeasts

b)

On aerial hyphae

c)

On vegetative hyphae

d)

By the thallus

e)

Fungi don’t produce reproductive spores

5.

Fungi, more often than bacteria, are responsible for decomposition of plant material because:

a)

They are aerobic.

b)

They can tolerate low-moisture conditions.

c)

They prefer a neutral environment (pH 7).

d)

They have a fermentative metabolism.

e)

They cannot tolerate high osmotic pressure.

6.

Pathogenic dimorphic fungi:

a)

Are yeast like at 25°C

b)

Are yeast like at 37°C

c)

Are filamentous at 37°C

d)

Are filamentous but cannot reproduce sexually at 25°C

e)

Have no sexual spore type at any temperature

7.

Sexual spores produced by fungi:

a)

Are often produced in response to environmental changes

b)

Include ascospores, zygospores, and basidospores

c)

Undergo meiosis to produce asexual spores

d)

Are used to classify fungi taxonomically

e)

All of the above are true

8.

Which of the following pairs is not correctly matched?

a)

Plasmogamy: union of two haploid cells.

b)

Karyogamy: fusion of nuclei.

c)

Meiosis: cell division resulting in haploid cells.

d)

Anamorph: produces asexual spores only.

e)

Deuteromycota: a phylum of fungi based on sexual spore type.

9.

Which spore results from the fusion of two nuclei from different strains of the same type of fungus and is formed in a sac?

a)

Zygospore

b)

Ascospore

c)

Basidiospore

d)

Deuterospore

e)

Blastospore

10.

Which spore results from the fusion of two nuclei from different strains of the same type of fungus and is found externally on a pedestal?

a)

Zygospore

b)

Ascospore

c)

Basidiospore

d)

Deuterospore

e)

Blastospore

11.

Which spore results from the fusion of two nuclei from different strains of the same type of fungus and is a thick-walled spore formed as a segment within a hypha?

a)

Zygospore

b)

Ascospore

c)

Basidiospore

d)

Deuterospore

e)

Blastospore

12.

Which of these spores are asexual spores?

a)

Zygospore

b)

Ascospore

c)

Basidiospore

d)

Deuterospore

e)

Blastospore

13.

Which of the following pairs is mismatched?

a)

Thallus: hyphae

b)

Thallus: mycelium

c)

Coenocytic: lacking cross-walls

d)

Septate: with cross-walls

e)

Aerial mycelium: vegetative mycelium

14.

All of the following statements about algae are true except:

a)

They use light as their energy source.

b)

They use CO2 as their carbon source.

c)

They produce oxygen from hydrolysis of water.

d)

All are unicellular.

e)

Some are capable of sexual reproduction.

15.

All algae are:

a)

Photoautotrophs.

b)

Plants.

c)

Unicellular.

d)

Toxic.

e)

None of these.

16.

All of the following groups of algae produce compounds that are toxic to humans except:

a)

Diatoms.

b)

Dinoflagellates.

c)

Green algae.

d)

Red algae.

17.

Which of the following statements about protozoa is false?

a)

Protozoa may be prokaryotes.

b)

Protozoa may make cysts.

c)

Protozoa may reproduce sexually.

d)

Protozoa may have flagella or cilia.

18.

Which organism that can grow photoautotrophically in the light and chemoheterotrophically in the dark?

a)

Oomycote

b)

Cellular slime mold

c)

Euglena

d)

Phytophthora

e)

Plasmodial slime mold

19.

The microspora and archaezoa are unusual eukaryotes because they:

a)

Are motile.

b)

Lack mitochondria.

c)

Lack nuclei.

d)

Don't produce cysts.

e)

Do produce cysts.

20.

The definitive host for Plasmodium is:

a)

Humans

b)

The Anopheles mosquito

c)

Snails

d)

Crawfish

e)

None of the above

21.

Plasmodial gametocytes are present in the blood:

a)

Of mosquitos

b)

At night

c)

When sporozoites are released from red blood cells

d)

Constantly after infection

22.

Which of the following is the most effective control for malaria?

a)

Vaccination

b)

Treating patients

c)

Eliminate the Anopheles mosquito

d)

Eliminate the intermediate host

e)

None of these

23.

All of the following statements about helminths are false except:

a)

Some helminths are phototrophic.

b)

Helminths are unicellular animals.

c)

Some helminths are eukaryotes.

d)

Some helminths are parasites.

24.

All of the following statements about helminths are true except:

a)

They are heterotrophic.

b)

They are multicellular animals.

c)

They have eukaryotic cells.

d)

All are parasites.

e)

Some have male and female reproductive organs in one animal.

25.

Which of the following systems in a parasitic helminth is not greatly reduced compared to free-living helminths?

a)

Digestive system

b)

Nervous system

c)

Locomotion

d)

Reproductive system

e)

All are reduced.

26.

Transmission of helminthic diseases to humans is usually by:

a)

Respiratory route.

b)

Genitourinary route.

c)

Gastrointestinal route.

d)

Vectors.

e)

All of these.

27.

Which of the following is not a characteristic of parasitic platyhelminths?

a)

They are hermaphroditic.

b)

They are dorsoventrally flattened.

c)

They have a complete digestive system.

d)

They can be divided into flukes and tapeworms.

e)

None of these.

28.

Cercariae, metacercaria, miracidia, and rediae are stages in the life cycle of:

a)

Cestodes.

b)

Trematodes.

c)

Nematodes.

d)

Sporozoans.

e)

Sarcodina.

29.

Which stage immediately precedes the adult?

a)

Cercaria

b)

Metacercaria

c)

Miracidium

d)

Redia

30.

The encysted larva of the beef tapeworm is called a:

a)

Redia.

b)

Cercaria.

c)

Cysticercus.

d)

Metacercaria.

e)

None of these.

31.

A definitive host harbors which stage of a parasitic helminth?

a)

Miracidium

b)

Cyst

c)

Adult

d)

Larva

e)

All of these

32.

What do tapeworms eat?

a)

Intestinal bacteria

b)

Host tissues

c)

Red blood cells

d)

Intestinal contents

e)

All of these

33.

What do hookworms eat?

a)

Intestinal bacteria

b)

Host tissues

c)

Red blood cells

d)

Intestinal contents

e)

All of these

34.

Which of the following is the most effective preventive measure to avoid acquiring a beef tapeworm?

a)

Salting beef before eating

b)

Refrigerating stored beef

c)

Not eating raw beef

d)

Wearing gloves while handling beef

e)

Not kissing cows

35.

If a larva of Echinococcus granulosus is found in humans, humans are the:

a)

Definitive host.

b)

Definitive host.

c)

Intermediate host.

d)

Reservoir.

e)

None of these.

36.

Which of the following pairs is mismatched?

a)

Tick: Rocky Mountain Spotted Fever

b)

Tick: Lyme Disease

c)

Mosquito: Malaria

d)

Mosquito: Pneumocystis

e)

Mosquito: Encephalitis

37.

Ringworm is caused by a(n):

a)

Ascomycete.

b)

Cestode.

c)

Nematode.

d)

Protozoan.

e)

Trematode.

38.

Yeast infections are caused by:

a)

Aspergillus.

b)

Candida albicans.

c)

Histoplasma.

d)

Penicillium.

e)

Saccharomyces cerevisiae.

39.

All of the following arthropods transmit diseases while sucking blood from a human host except:

a)

Lice.

b)

Fleas.

c)

Houseflies.

d)

Mosquitoes.

e)

Kissing bugs.

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