Microbiology- Chapter 4 HW
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