ch. 13 - Protists and Fungi

A _ is a single-celled eukaryotic microorganism.

protist or protozoan

An eyespot allows the protozoan to detect light.

true

A _ is a single-celled eukaryotic microorganism.

protist or protozoan

An eyespot allows the protozoan to detect light.

true

Paramecia reproduce sexually through

conjugation

Protozoans do not cause disease in humans.

False

Prokaryotes provide a straightforward evolutionary link between prokaryotes and multicellular organisms.

False

Hair-like projections used by an amoeba for movement are _.

cilia

Why are chromists considered plantlike?

Many chromists are photosynthetic.

Which of the following is (are) true of chromists in comparison with protozoans?

. Chromists lack specialized structures.

An example of a chromist is algae.

True

Chromists form the basis of many food chains and food webs.

true

Explosive growth in the population of a colony of chromists that depletes oxygen in the water is called a (an) _ _.

algal and bloom

protist

a. a single-celled or multicellular eukaryotic organism

pseudopodium

r. a temporary extension of a cell membrane used for movement or to engulf food particles

cyst

a dormant stage for protists that allows an organism to survive during unfavorable environmental conditions

spore

type of reproductive cell protected by a hard covering

chromist

a plantlike organism

plankton

organisms that float in the oceans, seas, and lakes

. algal bloom

a surge in the population of algae produced by favorable environmental conditions

chitin

j. an organic substance found in the cell walls of fungi

mycelium

a fungal structure made of interwoven hyphae

fruiting body

the fungal structure responsible for reproduction

cap

the top of a fungal fruiting body containing gills and spores

fragmentation

d. a type of asexual reproduction in fungi in which new organisms grow from pieces of an original

budding

h. a type of asexual reproduction in fungi in which a portion of the parent organism is pinched off and develops into an identical offspring

lichen

an organism consisting of an alga and a fungus

mycorrhiza

a symbiotic relationship between a fungus and plant roots

In order for an algal bloom to occur, which of the following is (are) necessary?

. sufficient oxygen and nutrients

b. sunlight

c. warm water

Both heterotrophs and autotrophs can be found in these kingdoms.

Chromista and Protozoa

Unicellular and multicellular-colonial organisms can be found in which kingdom(s)?a.

Chromista

b. Fungi

c. Protozoa

Decomposers can be found in this kingdom(s).

Fungi and Protozoa

The scientist who discovered protists through the microscope was

Anton can Leeuwenhoek

Protozoan structures include a. cilia

b. flagella

c. pseudopods

:d. all of the above

. all of the above

Protozoans reproduce sexually through

conjugation

Protozoans function in the environment as

a. parasites.

b. decomposers.

c. pathogens.

d. all of the above.

all of the above.

An example of a chromist is

water mold.

Examples of fungi include

Ascomycota.

b. Cordyceps.

c. both A and B

d. neither A nor B

c. both A and B

Because protists are relatively simple organisms, their classification has remained largely unchanged since their discovery.

False

Protozoans such as paramecia use contractile vacuoles to expel waste products into their environment.

FalseThis

Protozoans lack the specialized structures needed to respond to changes in their environment.

false

As in plants, the cell walls of fungi are made of cellulose.

False

Imperfect fungi can reproduce only asexually.

True

The fruiting body of a fungus, such as a mushroom, is a reproductive structure.

True

Manu fungi live in symbiotic relationships with other organisms.

True

Amoebas has no fixed body shape.

true

Eyespots are a specialized structure that detect light.

True

Many chromists are autotrophs that produce their food through _.

photosynthesis

Autotrophs that drift in currents are collectively referred to as _ and are an important part of aquatic food webs.

phytoplankton

Fungi grow like plants but lack _, the green pigment that allows plants to photosynthesize.

chlorophyll

One type of protozoan in the Kingdom Protozoa is a(n) _.

radiolarian, ciliate, dog vomit, euglena,paramecium

Protists are difficult to classify.

true

One example of a chromist in the Kingdom Chromista is a(n) _.

algae, diatoms, foraminifera, slime mold, water mold, kelp, seaweed.

Kelp is a brown algae in the Kingdom Chromista.

True