Deck 12: The Eukaryotes: Fungi, Algae, Protozoa, and Helminths

Question 1

All of the following are true about protozoa except

A) All make cysts.
B) They have eukaryotic cells.
C) They may reproduce sexually.
D) They may have flagella or cilia.
E) None of the above.

Answer 1

A

Question 2

Which of the following pairs is not correctly matched?

A) Anamorph - produces asexual spores.
B) Karyogamy - fusion of nucleus.
C) Deuteromycota - a phylum of fungi.
D) Plasmogamy - union of two haploid cells.
E) Meiosis - cell division resulting in haploid cells.

Answer 2

C

Question 3

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

A) They are dorsoventrally flattened.
B) They can be divided into flukes and tapeworms.
C) They are hermaphroditic.
D) They have a complete digestive system.
E) None of the above.

Answer 3

D

Question 4

Which of the following pairs are mismatched?
1) Arthroconidium - formed by fragmentation
2) Sporangiospore - formed within hyphae
3) Conidiospore - formed in a chain
4) Blastoconidium - formed from a bud
5) Chlamydoconidium - formed in a sac

A) 2 and 3
B) 2 and 5
C) 4 and 5
D) 1 and 2
E) 3 and 4

Question 5

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

A) Intermediate host.
B) Reservoir.
C) Infected host.
D) Definitive host.
E) None of the above.

Question 6

All of the following statements about fungi are true except

A) All fungi have eukaryotic cells.
B) Few fungi are pathogenic to humans.
C) Most fungi are aerobic.
D) All fungi are unicellular.
E) Fungi are heterotrophic.

Question 7

The cells of plasmodial slime molds can grow to several centimeters in diameter because

A) They distribute nutrients by cytoplasmic streaming.
B) The large surface can absorb nutrients.
C) They form spores.
D) They have organelles.
E) None of the above.

Question 8

Ringworm is caused by a(n)

A) Cestode.
B) Ascomycete.
C) Protozoan.
D) Nematode.
E) Trematode.

Question 9

What do tapeworms eat?

A) Red blood cells
B) Intestinal bacteria
C) Host tissues
D) Intestinal contents
E) All of the above

Question 10

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

A) Nematodes.
B) Sporozoans.
C) Cestodes.
D) Sarcodina.
E) Trematodes.

Question 11

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

A) Houseflies.
B) Lice.
C) Kissing bugs.
D) Mosquitoes.
E) Fleas.

Question 12

Which of the following statements is not true?

A) In a lichen, the fungus provides the holdfast.
B) In a lichen, the alga produces carbohydrates.
C) Lichens are important soil producers.
D) Lichens are parasites.
E) A lichen doesn't exist if the fungal and algal partners are separated.

Question 13

Which of the following pairs is mismatched?

A) Thallus - hyphae
B) Thallus - mycelium
C) Aerial mycelium - vegetative mycelium
D) Coenocytic - lacking cross- walls
E) Septate - with cross- walls

Question 14

All of the following statements about algae are true except

A) They use light as their energy source.
B) All are unicellular.
C) Some are capable of sexual reproduction.
D) They use CO₂ as their carbon source.
E) They produce oxygen from hydrolysis of water.

Question 15

Yeast infections are caused by

A) Histoplasma.
B) Candida albicans.
C) Saccharomyces cerevisiae.
D) Aspergillus.
E) Penicillium.

Question 16

A nucleated, unicellular organism; when you change the incubation temperature, it forms filaments with conidiospores.

A) Euglenozoa
B) Ascomycete
C) Plasmodial slime mold
D) Cellular slime mold
E) Tapeworm

Question 17

Leishmania is an euglenozoa. Which of the following is not true about this organism?

A) It is a human parasite.
B) It is flagellated.
C) It is photosynthetic.
D) It is transmitted by sandflies.
E) None of the above.

Question 18

Which of the following does not belong with the others?

A) Plasmodium
B) Cryptosporidium
C) Trypanosoma
D) Cyclospora
E) None of the above

Question 19

Which of the following pairs is mismatched?

A) Tick - Rocky Mountain Spotted Fever
B) Mosquito - Encephalitis
C) Tick - Lyme Disease
D) Mosquito - Pneumocystis
E) Mosquito - Malaria

Question 20

In a food chain consisting of the following, which acts as a producer?

A) Lichens
B) Slime molds
C) Fungi
D) Protozoa

Question 21

All of the following statements about helminths are true except

A) They are heterotrophic.
B) Some have male and female reproductive organs in one animal.
C) All are parasites.
D) They are multicellular animals.
E) They have eukaryotic cells.

Question 22

Which stage immediately precedes the adult?

A) Metacercaria
B) Redia
C) Miracidium
D) Cercaria

Question 23

Table 12.1
$\begin{array}{ll}\text { 1- Arthroconidium } & \text { 5-Chlamydoconidium } \\\text { 2- Ascospore } & \text { 6-Conidiospore }\\\text { 3-Basidiospore }&\text { 7-Sporangiospore }\\\text { 4- Blastoconidium }&\text { 8-Zygospore }\\\end{array}$

-In Table 12.1, which of these spores are asexual spores?

A) 2, 4, 6, 7, 8
B) 1, 3, 5, 8
C) 1, 4, 5, 6, 7
D) 2, 3, 6, 8
E) All

Question 24

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

A) Locomotion
B) Digestive system
C) Nervous system
D) Reproductive system
E) All are reduced.

Question 25

Which one of the following does not belong with the others?

A) Giardia
B) Entamoeba
C) Plasmodium
D) Cryptosporidium
E) Trypanosoma

Question 26

The life cycle of the fish tapeworm is similar to that of the beef tapeworm. Which of the following is the most effective preventive measure?

A) Wearing gloves while handling fish
B) Salting fish before eating
C) Cooking fish before eating
D) Refrigerating stored fish
E) Not swimming in fish- infested waters

Question 27

Which of the following statements is false?

A) Fungal spores are used in identification of fungi.
B) Fungi produce asexual spores.
C) Fungal spores are for reproduction.
D) Fungal spores are resting spores to protect the fungus from adverse environmental conditions.
E) Fungi produce sexual spores.

Question 28

Table 12.1
$\begin{array}{ll}\text { 1- Arthroconidium } & \text { 5-Chlamydoconidium } \\\text { 2- Ascospore } & \text { 6-Conidiospore }\\\text { 3-Basidiospore }&\text { 7-Sporangiospore }\\\text { 4- Blastoconidium }&\text { 8-Zygospore }\\\end{array}$

-All algae are

A) Toxic.
B) Photoautotrophs.
C) Plants.
D) Unicellular.
E) None of the above.

Question 29

Multinucleated amoebalike cells that produce funguslike spores.

A) Euglenozoa
B) Plasmodial slime mold
C) Ascomycete
D) Tapeworm
E) Cellular slime mold

Question 30

The microspora and archaezoa are unusual eukaryotes because they

A) Lack nuclei.
B) Don't produce cysts.
C) Are motile.
D) Do produce cysts.
E) Lack mitochondira.

Question 31

Table 12.1
$\begin{array}{ll}\text { 1- Arthroconidium } & \text { 5-Chlamydoconidium } \\\text { 2- Ascospore } & \text { 6-Conidiospore }\\\text { 3-Basidiospore }&\text { 7-Sporangiospore }\\\text { 4- Blastoconidium }&\text { 8-Zygospore }\\\end{array}$

-In Table 12.1, which spore is in a sac and results from the fusion of two nuclei from different strains of the same fungi?

A) 4
B) 2
C) 6
D) 1
E) 8

Question 32

A multicellular organism; the digestive tract has one opening.

A) Cellular slime mold
B) Ascomycete
C) Euglenozoa
D) Plasmodial slime mold
E) Tapeworm

Question 33

A definitive host harbors which stage of a parasite?

A) Larva
B) Adult
C) Miracidium
D) Cyst
E) All of the above

Question 34

An organism that can grow photoautotrophically in the light and chemoheterotrophically in the dark.

A) Oomycote
B) Plasmodial slime mold
C) Euglena
D) Phytophthora
E) Cellular slime mold

Question 35

Which of the following pairs is mismatched?

A) Red algae - agar
B) Brown algae - algin
C) Green algae - prokaryotic
D) Dinoflagellates - paralytic shellfish poisoning
E) Diatoms - petroleum

Question 36

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

A) They cannot tolerate high osmotic pressure.
B) They prefer a neutral environment (pH 7).
C) They have a fermentative metabolism.
D) They are aerobic.
E) They can tolerate low- moisture conditions.

Question 37

Transmission of helminthic diseases to humans is usually by

A) Vectors.
B) Genitourinary route.
C) Gastrointestinal route.
D) Respiratory route.
E) All of the above.

Question 38

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

A) Eliminate the intermediate host
B) Treating patients
C) Vaccination
D) Eliminate Anopheles
E) None of the above

Question 39

Table 12.1
$\begin{array}{ll}\text { 1- Arthroconidium } & \text { 5-Chlamydoconidium } \\\text { 2- Ascospore } & \text { 6-Conidiospore }\\\text { 3-Basidiospore }&\text { 7-Sporangiospore }\\\text { 4- Blastoconidium }&\text { 8-Zygospore }\\\end{array}$

-In Table 12.1, which of these spores are characteristic of Rhizopus?

A) 7 and 8
B) 2 and 8
C) 6 and 7
D) 1 and 4
E) 1 and 2

Question 40

Amoebalike vegetative structures that produce sporangia.

A) Plasmodial slime mold
B) Tapeworm
C) Ascomycete
D) Cellular slime mold
E) Euglenozoa

Question 41

The encysted larva of the beef tapeworm is called a

A) Redia.
B) Cysticercus.
C) Metacercaria.
D) Cercaria.
E) None of the above.

Question 42

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

A) Dinoflagellates.
B) Green algae.
C) Diatoms.
D) Red algae.
E) None of the above.