Micro lab 7

An example of a helical virus is

ebola

The most frequent cause of recreational waterborne diarrhea caused by

Cryptosporidium

Which of the following could Tori's physician choose as a treatment for her yeast infection?

-a topical over-the-counter ointment, such as clotrimazole or miconazole -a single oral dose of fluconazole

Which of the following statements is NOT true when comparing viruses to typical bacteria?

both typical bacteria and viruses have ribosomes

How are viruses classified?

by nuclei acid type and capsid morphology

Which of the following eukaryotic organisms can cause human disease?

fungi protozoa * all of the organisms can cause human disease helminths

Which of the following organisms cause malaria?

Plasmodium falciparum

Which of the following organisms cause the STD, Trichomoniasis?

Trichomonas vaginalis

Identify the viruses that cause AIDS.

HIV-1and HIV-2

Which of the following characteristics is NOT true about the organisms called kinetoplastids?

they multiply by budding

Cercariae, metacercaria, redia, and sporocysts are all life cycle stages of trematodes.

true

The sporozoite, merozoite, gametocyte, and ring stages are all part of the Plasmodium life cycle.

true

Which of the following infections are also caused by C. albicans?

-fulminating disease -oral thrush

What disease is caused by the viruses belonging to the viral family, Retroviridae?

AIDS

Identify the pathologic protozoan belonging to phylum Amoebozoa that can be contracted from contaminated hot tubs or improper disinfection of contact lenses.

Acanthamoeba polyphaga

How do blastoconidia and chlamydoconidia produced by yeast differ from bacterial endospores?

Blastoconidia and chlamydoconidia are spore structures produced by budding in yeasts, whereas bacterial endospores are produced by bacteria under extreme conditions.

Based on the lab results, which organism is most likely causing Tori's new symptoms?

Candida albicans

Why could the treatment for a fungal infection result in side effects to a patient's cells?

Fungal cells and human cells are eukaryotic, so both have a nucleus, multiple organelles, and 80S ribosomes for protein synthesis that could be affected.

Which of the following statements best describes why the treatment for Tori's fungal infection may result in side effects to her own cells?

Fungal cells and human cells have a nucleus, multiple organelles, and 80S ribosomes for protein synthesis.

What virus family has DNA as its nucleic acid AND uses reverse transcriptase?

Hepadnaviridae

Name the viral genus that causes AIDS.

Lentivirus

Which of the following best explains why Tori developed a new series of symptoms?

The antibiotics that treated Tori's primary respiratory infection also removed some of her normal bacterial flora, resulting in an overgrowth of other organisms.

In helminth life cycles, the organism that harbors the adult sexually reproductive phase of the parasite is called the intermediate host.

false

How do pseudohyphae in yeasts differ from vegetative hyphae in filamentous fungi?

Yeasts use pseudohyphae to invade host tissue, whereas filamentous fungi use their vegetative hyphae for obtaining nutrients.

An example of a complex virus is

bacteriophage

Most cases of hookworm infection are acquired by ingestion of adult forms in contaminated food or water.

false

The Platyhelminthes group includes roundworms, tapeworms, and flukes.

false

Polyhedral viruses have 20 triangular-shaped sides are called

icosahedral

Species belonging to the protozoan phylum Parabasalid, such as Trichamonas vaginalis, lack which cellular organelle?

mitochondria

The "N" in the H1N1 virus stands for

neuramidase