Chapter 5 on microbiology

Algae and protozoa
Protists include
The eukaryotic cell organelle that most resembles a bacterial cell is the
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Spirochete, cyanobacteria
The endosymbiotic theory says that precursor eukaryotic cells acquired flagella by endosymbiosis with a _____ ancestor and others gained photosynthetic ability from endosymbiosis with a _____ ancestor.
The endosymbiotic theory has been developed to explain the emergence of
Biologists have found evidence that eukaryotic cells evolved from prokaryotic organisms by a process of intracellular
A. Symbiosis
B. Parasitisim
C. Communalism
D. None of the choices are correct
All of the choices are correct
Which of the following is found in eukaryotic cells but not in prokaryotic cells?
Contain microtubules
Eukaryotic flagella differ from prokaryotic flagella because only eukaryotic flagella
Cilia are found in certain
There are nine peripheral pairs and one central pair of _____ found inside eukaryotic flagella and cilia.
Cell walls are not found on typical cells of
Mostly polysaccharide
The eukaryotic cell’s glycocalyx is
Which of the following is not a function of the eukaryote glycocalyx?
Chitin is a chemical component of the cell walls of
All of these
The eukaryote cell membrane is composed of
The site for ribosomal RNA synthesis is the
When a eukaryotic cell is not undergoing mitosis, the DNA and its associated proteins appear as a visible thread-like mass called the
Proteins associated with DNA in the nucleus
Histones are
The passageways in the nuclear envelope for movement of substances to and from the nucleus and cytoplasm are called nuclear
Endoplasmic reticulum
The cell’s series of tunnel-like membranes functioning in transport and storage are the
Golgi apparatus
An organelle that is a stack of flattened, membranous sacs and functions to receive, modify and package proteins for cell secretion is the
Use them to expel excess water from the cell
Protists with contractile vacuoles
A _____ originates from the golgi apparatus as one type of vesicle that contains a variety of enzymes for intracellular digestion.
. Mitochondria
Which organelle contains cristae where enzymes and electron carriers for aerobic respiration are found?
Enzymes for photosyntesis
Mitochondria possess all of the following except
Which organelle is found in algae but not found in protozoa or fungi?
Nucleus, chloroplast, mitochondria
In eukaryotic cells, which of the following contains DNA?
Thylakoids, stroma
Chloroplasts are composed of membranous sacs called _____ that carry chlorophyll. Surrounding these sacs is a ground substance called _____.
The size of a eukaryotic cell ribosome is
Made up of cilia
Which of the following is not true of the cytoskeleton?
Cytoplasm, endoplasmic reticulum
In eukaryotic cells, ribosomes have two locations: scattered in the _____ and on the surface of _____.
All of the choices are correct
The cytoskeleton
Filamentous fungi are called
When buds remain attached, they form a chain of yeast cells called
Fungi that grow as yeast at one temperature but will grow as mold at another temperature are called
Which is not a characteristic of fungi?
The long, thread-like branching cells of molds are called
Most fungi obtain nutrients from dead plants and animals. These fungi are called
The woven, intertwining mass of hyphae that makes up the body of a mold is a/an
Are used to identify fungi
Fungal asexual spores
Opportunistic and primary
What two categories of fungi cause human diseases?
Amoebic dysentery
Blooms of certain alga are associated with all of the following except
Toxic algae
Pfiesteria is a/an
During unfavorable growth conditions, many protozoa can convert to a resistant, dormant stage called a/an
E. Cell wall
All of the following are found in some or all protozoa except
The motile, feeding stage of protozoa is called the
The group of protozoa that have flagella are the
The group of protozoa that are not mobile are the
The group of protozoa that use pseudopodia to move are the
Plasmodium-causes Chagas disease
Which is mismatched?
Protozoan endoplasm contains
Are analogous to bacterial endospores
Protozoan cysts
Fecal oral route from contaminated food or water
Amoebic dysentery is most commonly contracted through the
Reduviid bug
The vector for the trypanosome of Chagas disease is the
All of the following are helminths except
. In kingdom Protista
Which of the following does not pertain to helminths?
. Helminthes
Larvae and eggs are developmental forms of
. All of choices are helminthes
All of the following are helminths except
. Definitive host
Adulthood and mating of helminths occur in which host?
Secondary host
Larval development of helminths occurs in which host?
Parasitic worms have a highly developed ______ system.
Digestive tract
In humans, helminthes generally infect the
Plasmodium malariae
After returning from a trip to Africa, Tom begins to feel very tired and weak. He has severe anemia. A blood smear reveals a protozoan is present in his blood. The health care provider tells Tom he has malaria. Which of the following could be the causative agent of his disease?
. Pigs
Eating undercooked meat can lead to food poisoning and helminthic infection. What is the common host for Taenia solium?
Under extreme conditions some bacilli go into a dormant, non-vegetative state called__ formation.
The eukaryotic cell membrane is a bilayer of sterols.
True or False.
The cell wall of fungi and algae are chemically identical to the prokaryotic cell wall.
True or False.
Chromosomes are generally not visible in the nucleus unless the cell is undergoing nuclear division.
True or False
The nuclear envelope is a single layer.
True or False.
Rough endoplasmic reticulum is studded with ribosomes.
True or False.
Eukaryotic mitochondria have their own 70S ribosomes and circular DNA.
True or False.
Algae are classified into Divisions based principally on their type of motility.
True or False.
Infections caused by fungi are called mycoses.
True or False.
All fungi have hyphae. True or False.
In humans, fungi can only infect the skin.
True or False
All fungi cause some kind of disease in plants and animals.
True or False.
Fungi can reproduce both sexually and asexually.
True or False.
All algae have chloroplasts.
True or False.
Plankton are floating communities of helminths.
True or False.
There are no algae that can cause human disease.
True or False.

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