Diversity of Eukaryotic Microorganisms Flashcards

Comprehensive fill-in-the-blank practice questions covering the phylogeny, classification, and specific examples of eukaryotic microorganisms including algae, fungi, and protists.

Eukaryotic phylogeny primarily uses __________ genes to determine relationships between organisms.

18S rRNA

DNA sequence comparisons reveal that the African golden mole is more closely related to an __________ than to a shrew.

elephant

In the Archaeplastida group, an aggregate of cells attached together is known as a __________.

coenobium

Green algae that grow inside porous rocks are specifically called __________ algae.

endolithic

The red color in Rhodophyta is derived from an accessory pigment called __________.

phycoerythrin

Cyanidioschyzon merolae, a species of red algae, is unusually small, measuring only __________ in diameter.

$$1-2\,mm$$

A mass of branching filaments in fungi is called hyphae, and the whole mass of those hyphae is the __________.

mycelium

Hyphae that do NOT have visible crosswalls are described as __________.

non septate

The microscopic parasite Encephalitozoon intestinales, a member of Microsporidia, lacks Golgi apparatus, hydrogenosomes, and __________.

mitochondria

The oldest and most primitive fungi, which are known to infect amphibians, are the __________.

Chytridiomycetes

Glomeromycetes are notable for their dependent symbiosis with __________ plants.

land

Bread molds like Rhizopus sp. reproduce sexually using __________.

zygospores

The common baker's yeast is scientifically known as __________.

Saccharomyces cerevisiae

The common asexual spores of Ascomycetes are called __________.

Conidiospores

Basidiomycetes, such as Agaricus campestris, commonly reproduce sexually through __________.

basidiospores

Fungi that have no known sexual stage and are often human pathogens are classified as __________.

Deuteromycetes

Giardia intestinalis, a diplomonad, lacks mitochondria but possesses __________.

mitosomes

African sleeping sickness is caused by the kinetoplastid __________.

Trypanosoma brucei gambiense

Organisms in the Alveolata group are characterized by the presence of __________ underneath the cytoplasmic membrane.

alveoli

The genus of toxic dinoflagellate responsible for massive fish kills is __________.

Pfiesteria piscicida

Diatoms have cell walls made of silica that are specifically called __________.

frustules

The White Cliffs of Dover are formed from the fossilized tests of __________.

foraminifera

Amoebic dysentery is caused by the organism __________.

Entamoeba histolytica

When food is plentiful, cellular slime molds exist as individual __________.

Myxamoeba

In cellular slime molds, the slug-like mass of cells that moves together is called a __________.

Pseudoplasmodium