Eukaryotic Microbes & Infectious Agents Quiz

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Questions and Answers

What is the likely cause of Frank's respiratory distress and high fever?

Parasitic infection

Fungal infection (correct)

Viral pneumonia

Bacterial infection

Which of the following treatments did Frank NOT receive?

Itraconazole

Penicillin (correct)

Cefotiam hydrochloride

Amphotericin B

What symptom indicated that Frank's immune system was fighting an infection?

Decreased white blood cell count

Normal C-reactive protein levels

Elevated white blood cell count (correct)

Absence of cough

What abnormal finding was observed in Frank's CT scan?

Thickened bronchial walls Signup and view all the answers

What type of fungus is Aspergillus fumigatus classified as?

Septate mold Signup and view all the answers

What is the primary process by which many eukaryotic microbes, such as yeasts, reproduce asexually?

Mitosis Signup and view all the answers

Which of the following is a key characteristic of the diploid form of protozoa?

It requires more resources than the haploid form. Signup and view all the answers

Which two major categories classify microbial eukaryotes?

Fungi and protozoa Signup and view all the answers

What modification of mitotic cell division is required for gamete formation in eukaryotic cells?

Meiosis Signup and view all the answers

Which eukaryotic organisms are characterized by features such as hyphae and yeast?

Fungi Signup and view all the answers

What is a defining trait of eukaryotic cells compared to prokaryotic cells?

Linear chromosomes Signup and view all the answers

In which stage does genetic variation in protozoa typically increase?

Diploid form Signup and view all the answers

What role do algae play in the classification of microbial eukaryotes?

They are one of the main types of microbial eukaryotes. Signup and view all the answers

What does the term 'protozoa' literally mean?

First animals Signup and view all the answers

Which of the following types of organisms are considered 'microbial eukaryotes'?

Protozoa Signup and view all the answers

Which of the following is NOT a type of human pathogen listed in the content?

Phycomycetes Signup and view all the answers

Which disease is caused by the protozoan Plasmodium?

Malaria Signup and view all the answers

Which group of organisms includes Candida and Aspergillus?

Fungi Signup and view all the answers

Trypanosoma brucei is responsible for which of the following diseases?

African sleeping sickness Signup and view all the answers

Which of the following diseases is caused by Cryptosporidium?

Cryptosporidiosis Signup and view all the answers

Amebas primarily affect which part of the human body?

Gastrointestinal tract Signup and view all the answers

What type of organisms are classified as protists?

Both algae and protozoa Signup and view all the answers

What type of pathogens are helminths classified as?

Parasitic pathogens Signup and view all the answers

Which organism is primarily responsible for causing amoebic dysentery?

Entamoeba histolytica Signup and view all the answers

What is a primary characteristic of yeasts?

Capable of asexual and sexual reproduction Signup and view all the answers

Which of the following is a common pathogen responsible for trichomoniasis?

Trichomonas vaginalis Signup and view all the answers

Which organism is a free-living amoeba associated with primary amoebic meningoencephalitis?

Naegleria fowleri Signup and view all the answers

What structure do fungal hyphae possess that makes them resilient?

Chitin cell walls Signup and view all the answers

Which species is known to cause a rare algal infection in immunocompromised individuals?

Prototheca Signup and view all the answers

Which of the following statements is true regarding microsporidia?

They are obligate intracellular parasites. Signup and view all the answers

Which organism is primarily associated with balantidiasis?

Balantidium coli Signup and view all the answers

What is one main advantage of yeasts in their environment?

Ability to reproduce rapidly in aquatic environments Signup and view all the answers

Which of the following arthropods directly infect humans?

Scabies mites Signup and view all the answers

Study Notes

Eukaryotic Microbes & Invertebrate Infectious Agents

Eukaryotes consist of fungi, protists, and helminths.
Eukaryotic cell structure: a nucleus with linear chromosomes, membranous organelles (ER, Golgi, vacuoles), mitochondria, and chloroplasts.
Asexual reproduction: mitotic cell division leading to indefinite proliferation.
Sexual reproduction: involves gamete formation through meiosis, creating a diploid zygote.
Microbial eukaryotes: categorized as fungi, protozoa, and algae.
Fungi: characterized by hyphae, yeast, and their ability to cause diseases like athlete's foot and systemic infections.
Protozoa: diverse group including amoebas, paramecia, apicomplexans, trypanosomes, metamonads, and ciliates.
Helminths: parasitic worms, like roundworms, tapeworms, and flukes.
Invertebrate parasites: arthropods, like mites, lice, mosquitoes, ticks, and fleas, can be vectors for pathogens.
Yeast: single-celled fungi capable of both sexual and asexual reproduction.
Hyphae: filaments forming the fungal mycelium, composed of chitin, glucans, mannans, and proteins.
Mycelium: network of interwoven hyphae.
Specialized hyphae: involved in nutrient uptake and reproduction.
Fungal diseases: caused by various yeasts, molds, and dimorphic fungi, affecting different organs and systems.
Microsporidia: obligate intracellular parasites, primarily affecting immunocompromised individuals.
Algae: mostly non-pathogenic to humans, but some species can cause diseases in immunocompromised individuals.

Fungi and Microsporidians

Yeast: single-celled fungi capable of sexual and asexual reproduction.
Fungal mycelium: a network of interwoven hyphae, responsible for nutrient absorption and reproduction.
Fungal diseases: caused by yeasts, molds, and dimorphic fungi, with varied symptoms and severity.
Microsporidiosis: caused by obligate intracellular parasites, primarily affecting immunocompromised individuals.

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Description

Test your knowledge on eukaryotic microbes, including fungi, protists, and helminths, along with their cellular structures and reproductive methods. This quiz covers the role of invertebrate parasites and their significance in health and disease. Prepare to explore the fascinating world of microbial eukaryotes and their impacts on human health.