$$\text{Energy source: Light}$$ \newline \text{Carbon source: CO}_2$

Question 1

Which of the following best describes a chemoheterotroph?

Accepted Answer

Uses organic molecules as a source of carbon and energy

Question 2

Aflatoxins produced by Aspergillus species are monitored in foods because they are:

Accepted Answer

Potent natural carcinogens

Question 3

Which group of fungi is classified by sexual reproduction via zygospores?

Accepted Answer

Zygomycota

Question 4

A patient presents with severe lung disease after exposure to fungal spores. This is most likely an example of:

Accepted Answer

Allergic reaction

Question 5

Which of the following is NOT a characteristic of viruses?

Accepted Answer

They are classified within the three-domain system

Question 6

Which of the following equations correctly represents the energy source and carbon source for a photoautotroph?

Accepted Answer

$$	ext{Energy source: Light}$$ 
ewline 	ext{Carbon source: CO}_2$

Question 7

Which of the following is a defining feature of nematodes?

Accepted Answer

Non-segmented, round bodies with a full digestive tract

Question 8

Dimorphic fungi are best described as:

Accepted Answer

Fungi that can grow either as yeast-like cells or as mycelia

Question 9

Which of the following is true about the classification of protozoa?

Accepted Answer

Classification of protozoa is in a state of flux

Question 10

Which of the following is a medically important effect of fungi on humans?

Accepted Answer

Fungi can cause disease by growing in or on the body, producing toxins, or destroying food supplies

Question 11

Which of the following best describes the life cycle of trematodes (flukes)?

Accepted Answer

Flat, leaf-shaped bodies with complicated life cycles involving multiple hosts

Question 12

Which of the following is true about prions?

Accepted Answer

Prions are infectious protein particles discovered in the 1980s

Question 13

Which of the following is a correct description of the head (scolex) of a cestode?

Accepted Answer

May have suckers and hooks for attachment

Question 14

Which of the following is a plausible reason for the rapid increase in the identification of new bacterial species?

Accepted Answer

Advances in molecular techniques and continual updates to Bergey's Manual

Question 15

Which of the following is a characteristic of the phylum Archaezoa?

Accepted Answer

Lack mitochondria but have mitosomes

Question 16

Which of the following equations represents the monitoring of aflatoxin levels in foods?

Accepted Answer

$$	ext{Aflatoxin concentration} \u003e 	ext{Threshold} ightarrow 	ext{Food rejected}$$

Question 17

Which of the following is true about viroids?

Accepted Answer

Viroids are infectious pieces of RNA that cause some plant diseases

Question 18

Which of the following is a plausible explanation for why viruses are not included in the three-domain system?

Accepted Answer

Viruses are not composed of cells

Question 19

Which of the following is a correct description of the function of proglottids in cestodes?

Accepted Answer

Contain reproductive structures

Question 20

Which of the following is a plausible reason why fungal diseases are often named after the causative fungus?

Accepted Answer

To facilitate identification and classification of the disease

Survey of Microbial Diversity: Domains, Fungi, Protozoa, Helminths, and Viruses

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