chapter 5 review microbiology
nervous
What body system is affected by Naegleria?
The causative agent was a protozoan
What is the portal of entry into the body for Nageleria infection?
cristae
What mitochondrial structures are the site of the enzymes and carriers used to make ATP in the electron transport system?
nucleolus
What structure is found within the nucleus and is involved in the synthesis of ribosomal RNA?
microtubules
Which cytoskeletal fibers attach to and move chromosomes during mitosis?
sporozoa
Which group of protozoa is characterized by a lack of locomotive appendages and contains the pathogens of malaria and toxoplasmosis?
all correct
Which of the following is not useful to determine whether a clinical isolate is a bacterium, fungus, or protozoan? Its size under a light microscope Whether it has a cell wall Whether it can form protective structures under stress
glycocalyx
Which structure, found in most eukaryotes and often called an "extracellular matrix", can be used for attachment?
parasite
Which term most accurately describes a fungus growing on live human skin?
mycelium
Woven intertwining mass of hyphae
conidia
Free spores not enclosed within a spore-bearing sac
true
Fungi have cell walls made of peptidoglycan
spores
Fungi produce which structures for reproduction and multiplication?
feces
How does this pathogenic protozoan leave the cat host?
proteins
In both eukaryotes and bacterial cells, ribosomes are responsible for the synthesis of ______.
water heater
In case 1, what was the source of the pathogen?
Amoebiasis
Pseudopodia
hyphae
A mycelium is an intertwined mass of which type of fungal cells?
false
All microbes that are unicellular, photosynthetic, and motile are classified as protozoans.
false
Archaeal and bacterial cells use chloroplasts for the process of photosynthesis.
definitive
Cats are the only host in which Toxoplasma can sexually reproduce. Therefore, cats are the _______ host for this protozoan.
Bacterial and eukaryotic ribosomes differ in size.
Choose the statement that correctly describes the major difference between bacterial and eukaryotic ribosomes.
The helminth reproduces sexually and spends most of its life in either a single animal host or a series of animal hosts.
Choose the statement that most accurately describes a typical helminth lifestyle.
Bacteria, Archaea, and Eukaryotes
It appears that the last common ancestor gave rise to which cell type(s)?
hyphae
Long thread-like cells
malaria
Nonmotile
yeast
Oval cells that reproduce by budding
Sporangiospores
Reproductive spores produced within sac-like structures
ingestion of
The infection cycle between cats and other hosts (rodents and birds) involves _______ the pathogenic protozoan for transmission between hosts.
eukarya
The organism discussed in this article is a member of Domain ______.
flat worms: round worms
The two major types of helminths based on body type are the _______, which include the tapeworms, and the _______, which are also known as nematodes.
asexual spores
These are produced by the mitotic division of a single parent cell.
sexual spores
These are produced by the union of genetic material from two different strains.
Balantidiosis
cilia
Giardiasis
flagella