Question 1

Which of the following characteristics would best distinguish a fungus from a bacterium if you isolated a single-celled organism with a cell wall?

Accepted Answer

Presence of chitin in the cell wall

Question 2

Which of the following best describes the difference between asexual and sexual reproduction in fungi?

Accepted Answer

Asexual reproduction produces genetically identical spores, while sexual reproduction produces genetically diverse spores

Question 3

Which phylum of fungi is characterized by coenocytic hyphae and the production of sporangiospores and zygospores?

Accepted Answer

Zygomycota

Question 4

Which of the following is a beneficial effect of fungi?

Accepted Answer

Producing antibiotics such as penicillin

Question 5

In a lichen, what is the primary role of the fungal partner?

Accepted Answer

Providing a holdfast and protection for the alga

Question 6

Which of the following statements about algae is correct?

Accepted Answer

Algae are photoautotrophic and produce molecular oxygen

Question 7

Which group of algae is responsible for producing neurotoxins that cause paralytic shellfish poisoning?

Accepted Answer

Dinoflagellates

Question 8

Which of the following is a distinguishing characteristic of protozoa?

Accepted Answer

They have a pellicle, cytostome, and anal pore

Question 9

Which of the following protozoan groups includes organisms that move by means of cilia and contains the only human parasitic ciliate?

Accepted Answer

Ciliates

Question 10

Plasmodium, the causative agent of malaria, undergoes sexual reproduction in which host?

Accepted Answer

Mosquito (definitive host)

Question 11

Which of the following best explains why drugs used to treat parasitic helminths are often toxic to the host?

Accepted Answer

Helminths are eukaryotic and share many cellular processes with humans

Question 12

Which of the following is a characteristic of cestodes (tapeworms)?

Accepted Answer

They have a scolex and proglottids

Question 13

A child is found to have a parasitic worm in their diaper. Which feature would help you distinguish between Taenia (tapeworm) and Necator (hookworm)?

Accepted Answer

Presence of proglottids indicates Taenia

Question 14

Which of the following is true regarding nematodes?

Accepted Answer

They are roundworms with a complete digestive system

Question 15

Which of the following is an example of a disease transmitted by a biological vector?

Accepted Answer

Malaria transmitted by Anopheles mosquitoes

Question 16

Which of the following best describes the economic importance of Saccharomyces in industry?

Accepted Answer

It is used in the production of bread and alcoholic beverages

Question 17

Which of the following statements about lichens is correct?

Accepted Answer

Lichens are a mutualistic association between a fungus and an alga or cyanobacterium

Question 18

Which of the following is a distinguishing feature of brown algae (Phaeophyta)?

Accepted Answer

They are harvested for algin

Question 19

Which of the following is a correct statement about the life cycle of trematodes (flukes)?

Accepted Answer

Eggs hatch into miracidia, which enter the first intermediate host

Question 20

Which of the following best describes the role of planktonic algae in aquatic ecosystems?

Accepted Answer

They are primary producers and generate most of the Earth's molecular oxygen

Microbiology Study Guide: Eukaryotes – Fungi, Algae, Protozoa, and Helminths

Study Guide - Practice Questions