Taxonomy & Eukaryotes (Chs. 10 & 12)

A multicellular organism that has a mouth and lives in an animal host is a(n)

Helminth

Which of the following characterizes the Domain Bacteria?

Prokaryotic cells; ester linkages in phospholipids

A genus can best be defined as

A taxon composed of one or more species and below family.

Into which group would you place a photosynthetic cell that lacks a nucleus?

Bacteria

Fungi differ from bacteria in that fungi

Have a nucleus.

Serological testing is based on the fact that

Antibodies react specifically with an antigen.

Classification of organisms in the three domains is based on

Type of cell

A nucleated, green cell that moves by means of flagella is a(n)

Alga

What is the outstanding characteristic of the Kingdom Fungi?

Members absorb dissolved organic matter.

Which of the following statements about helminths is false?

All are parasites.

Into which group would you place a multicellular heterotroph with chitin cell walls?

Fungi

In the name Escherichia coli, coli is the

Specific epithet.

A clone is

Genetically identical cells derived from a single cell.

Which of the following pairs is mismatched?

Conjugation — asexual reproduction in some protozoans

If two organisms have similar rRNA sequences, you can conclude that

They evolved from a common ancestor.

Which of the following statements about fungi is true?

All require organic material for growth.

Which of the following is NOT a domain in the three-domain system?

Animalia

A multicellular organism that has chitin cell walls and absorbs organic material is a(n)

Fungus

Which of the following best defines a strain?

A group of cells all derived from a single parent

Which of the following statements about archaea is false?

They evolved before bacteria.

Biochemical tests are used to determine

Enzymatic activities.

In the scientific name Enterobacter aerogenes, Enterobacter is the

Genus

Which of the following organisms lack cell walls?

Animalia

Which of the following statements about fungi is false?

All fungi are unicellular.

Which of the following statements about protozoa is false?

They have rigid cell walls.

A bacterial species differs from a species of eukaryotic organisms in that a bacterial species

Is a population of cells with similar characteristics.

Which of the following statements is false?

Lichens are parasites.

Into which group would you place a unicellular organism that has 70S ribosomes and a peptidoglycan cell wall?

Bacteria

Which one of the following does NOT belong with the others?

Fungi

The phylogenetic classification of bacteria is based on

rRNA sequences.

some form cysts

Protozoans

contain hermaphroditic organisms

Helminths

contains long filaments of cells forming hyphae

Fungi

include molds, yeasts, and mushrooms

Fungi

possess digestive, circulatory, nervous, excretory, and reproductive systems

Helminths

provides food source for herbivores in tundra

Lichens

include Paramecium and ameobas

Protozoans

have unicelluar, filamentous, or fleshy cellular arrangement

fungi

many organisms act as vectors

Helminths

vegetative form of organism is called trophozoite

Protozoans

include seaweeds

Algae

fruticose, foliose, and crustose are different types

Lichens

Photoautotroph

Algae

only contain unicellular organisms

Protozoans

release enzymes to absorb nutrients from decaying matter

Fungi

only contain multicellular organims

Helminths

great indicators of air quality from pollutants

lichens

have unicellualar, colonial, filamentous cellular arrangement

Algae

include parasitic worms

Helminths