Micro Lab Final Questions

Members of which eukaryotic supergroup include fungi, animals, and amoebas with lobe-shaped pseudopods and many slime molds?

Unikonta

Flagellated parasites like Giardia and Trypanosoma are grouped into which eukaryotic supergroup?

Excavata

Green algae such as Spirogyra and Volvox belong to which eukaryotic supergroup and divisions?

Archaeplastida: charophytes and chlorophytes

Diatoms and many ciliates are part of which large eukaryotic supergroup?

SAR supergroup

Photosynthetic protists with golden-brown chloroplasts and glass-like cell walls are called what?

Diatoms

The ornate cell walls of diatoms are primarily made of what substance?

Silica

Giardia lamblia belongs to which eukaryotic supergroup?

Excavata

Balantidium coli is a ciliated intestinal parasite in which SAR clade?

Alveolates

What is the name of the blood parasite that causes African sleeping sickness?

Trypanosoma brucei

What intestinal amoeba is the causative agent of amoebic dysentery in humans?

Entamoeba histolytica

The apicomplexan parasite that causes malaria belongs to which genus?

Plasmodium

Toxoplasma gondii carries out its sexual cycle in what definitive animal host?

Cat

Cyanobacteria can be distinguished from true algae because they are typically smaller and what characteristic color?

Blue-green

What phrase best describes Green algae?

Unicellular, multicellular, and filamentous, etc.

What brownish accessory pigment gives diatoms their characteristic golden color?

Fucoxanthin

Fungal divisions (phyla) are mainly defined by what two features of their hyphae and reproduction?

Type of sexual spore production and presence or absence of septa

Yeasts lack large fruiting bodies and therefore are NOT classified as what type of fungi?

Macrofungi

What is a saprophyte?

An organism that feeds on dead organic matter

A fungus that grows as filamentous strands of hyphae is commonly called a what?

Mold

A fungal species that can switch between yeast and mold forms depending on conditions is described as what?

Dimorphic fungus

Darkly pigmented molds with brown or black hyphae are known by what term?

Dematiaceous fungi

Which major fungal division typically has nonseptate (coenocytic) hyphae?

Zygomycota

Among Rhizopus, Aspergillus, Penicillum, and Saccharomyces, which one does NOT belong to the Ascomycota?

Rhizopus

What process do most protozoa use for asexual reproduction?

Binary fission

Which ascomycete yeast is widely used to make bread, wine, and beer and is usually not an important human pathogen?

Saccharomyces cerevisiae

Under the microscope, the conidia of Penicillium appear as chains of spores arranged in what overall shape?

Brush-like

The spores of Aspergillus niger are typically what color, compared with the green-gray spores of Penicillium?

Black

Hyphae with cross walls between adjacent cells are called what type of hyphae?

Septate hyphae

A mass of intertwined hyphae that forms the body of a fungus is called what?

Mycelium

The resting, survival stage of a protozoan is known as a what?

Cyst

The active, feeding stage of a protozoan is called a what?

Trophozoite

Compared with eukaryotic cells, prokaryotic cells are generally (smaller or larger) and (simpler or more complex)?

Smaller and simpler

In filamentous cyanobacteria, the thick-walled resistant cells are called akinetes. What are the specialized nitrogen-fixing cells called?

Heterocysts

Which opportunistic yeast commonly causes oral thrush, vulvovaginitis, and cutaneous infections?

Candida albicans

What term is used for the clear zones produced when bacteriophages lyse bacteria in a lawn during a phage assay?

Plaques

During phage typing, if no plaques form on a bacterial lawn, what does this usually indicate about the bacteria?

They are not suitable hosts for that phage

Into which two domains are all prokaryotes classified?

Bacteria and Archaea

In the Plasmodium life cycle, the sexual stage occurs in what host and sex?

Female Anopheles mosquito

In the Trypanosoma brucei life cycle, what insect serves as the intermediate host and vector?

Tsetse fly

In the lytic bacteriophage life cycle, which stage involved the assembly of new viral particles from synthesized components?

Maturation (assembly) stage