Microbiology- Chapter 4 HW

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Fungi produce which structures for reproduction and multiplication?

Spores

Which of these organisms has the best potential to survive in extreme environments?

fungi?

Long, threadlike fungal cells are called _________, and an intertwined mass of these cells is called a _________.

hyphae; mycelium

The Golgi apparatus ________.

modifies proteins

Bacteria and Eukaryotes and Viruses

nucleic acid

True or False: The total number of cases in November exceed that of July and September combined.

true

Eukaryotes

typically 2-100um in size, true nucleus, reproduction in mitosis, mitochondria, chloroplasts

Viruses

typically less than 0.2um in size

Yeasts are _______ fungi, and molds are ________ fungi.

unicellular; filamentous

The greatest increase in the number of reported cases of giardiasis occurred between which two months?

September and October

True or false: Giardia lamblia is a prokaryotic organism.

False

Heterotrophic

Acquisition of nutrients from organic materials (substrates)

Caused by Protozoa

Amoebiasis, Giardiasis, Malaria, Toxoplasmosis

Which of the following drugs will be useful in the treatment of this disease?

Antiprotozoal drugs

What state usually has the highest prevalence of coccidioidomycosis?

Arizona

Caused by Helminths

Ascariasis, River blindness

Based on the patient's history and chest X-ray results, what was the initial diagnosis?

Bacterial pneumonia

Ciliated Protozoans

Balantidium coli

Sarcodina

Brain infection, Amoebic dysentery

Caused by fungi

Candidiasis, Histoplasmosis, Coccidioidomycosis

What statement best summarizes the data?

Cases of coccidioidomycosis rose sharply between 2008 and 2011, but are now declining.

The identification of which structures, produced by the pathogen, in the stool specimen aided in the patient's diagnosis?

Cysts

What macromolecule never leaves the nucleus?

DNA

True or false: Coccidioides immitis is a member of Domain Bacteria.

False

Flagellated Protozoans

Giardia, Vaginal infection

Why was amphotericin B effective in treating this patient's disease?

It is an antifungal medication

Microtubule

Long, hollow tubes that maintain cell shape and help transport items within the cell

Actin Filament

Long, thin, 7 nm in diameter, concentrated just inside the cytoplasmic membrane

Sporoza

Malaria, Plasmodium, Toxoplasma gondii

Select the answer that represents the correct order of structures involved in protein synthesis and secretion.

Nucleus, rough ER, transitional vesicle, Golgi apparatus, secretory vesicle

Parasite

Organism that lives in or on another organism for the purpose of acquiring nutrients

Saprobe

Organism that obtains nutrients from the remnants of dead plants and animals

Asexual spores

Produced by the mitotic division of a single parent cell

Sexual spores

Produced by the union of genetic material from two different strains

What cellular structure is directly involved in converting the "message" found in a nucleic acid into a specific sequence of amino acids to make a protein?

Ribosome

Intermediate Filament

Ropelike structures, 10 nm in diameter, provide structural reinforcement

What type of endoplasmic reticulum is involved in protein synthesis?

Rough ER

Choose the most accurate description of a typical helminth lifestyle.

The helminth reproduces sexually and spends most of its life in either a single animal host or a series of animal hosts.

What is exocytosis?

The release of large particles to the outside of the cell

What would be the best hypothesis to explain why the highest incidence of giardiasis occurred in the summer and early fall?

These are the months when recreational water use is highest

What transports proteins between the ER and the Golgi apparatus?

Transitional vesicles

True or False: The total number of cases in the year 2011 exceeded that of the number of cases across the five-year span of 1998-2002.

True

Bacteria

Typically 0.5-3um in size

Mitochondria likely originated from ______.

bacteria

Bacteria and Eukaryotes

chromosomes, ribosomes, flagella, cell wall


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