Biology Chapter 28

The cells of _____ and _____ have modified mitochondria.
chlorophytes … ciliates
euglenozoans … alveolates
fungi … stramenopiles
diplomonads …parabasalids
dinoflagellates … metazoans

diplomonads… parabasilids

The members of _____ are characterized by cells with small membrane-bounded cavities under their cell membranes.
Mycetozoa
Rhodophyta
Alveolata
Stramenopila
Chlorophyta

Alveolata (Dinoflagellates, apicomplexans and ciliates are classified in Alveolata, a group characterized by cells with small membrane-bounded cavities under their cell membranes.)

Golden algae, brown algae, red algae, chlorophytes, and charophyceans are some examples of protists that are _____.

photosynthetic

Which of these groups consist of parasitic flagellated cells, such as Trypanosoma, the organism that causes sleeping sickness?
metazoans
diatoms
kinetoplastids
brown algae
ciliates

kinetoplastids

Which three groups contain large algae known as seaweeds?
chlorophytes, charophyceans, and red algae
plants, fungi, and choanoflagellates
brown algae, red algae, and green algae
diatoms, golden algae, and brown algae
dinoflagellates, apicomplexans, and green algae

brown algae, red algae, and green algae

Stramenopiles include all of the following groups EXCEPT ______.
brown algae
water molds
diatoms
golden algae
cellular slime molds

cellular slime molds (Cellular slime molds are amoebozoans)

Which of these groups is characterized by glasslike walls containing silica?
plants
brown algae
diplomonads
plasmodial slime molds
diatoms

diatoms

Plasmodium, the parasitic organism that causes malaria, is a _____.
apicomplexan
plasmodial slime molds
diatom
ciliate
entamoeba

apicomplexan

A paramecium is a (an) _____.

ciliate

The largest seaweeds are _____.

brown algae

All of the organisms classified as _____ move and feed using cilia.

ciliates

Which group is characterized by cells with fine hairlike projections on their flagella?
Stramenopila
Rhodophyta
Metazoa
Euglenozoa
Alveolata

Stramenopila

Which of these algal groups possess a photosynthetic pigment that allows them to live in deep water?
red algae
metazoans
green algae
brown algae
diatoms

red algae

Which of these groups includes both aquatic decomposers and the parasites responsible for late potato blight?
diatoms
plants
plasmodial slime molds
red algae
oomycetes

oomycetes

Which algal group has chloroplasts much like those of green plants in structure and pigment makeup?
chlorophytes
brown algae
red algae
diatoms
golden algae

chlorophytes

What advantage do organisms that reproduce sexually have over organisms that reproduce asexually?
Their offspring may have more mutations.
Their offspring may be more adaptable to changes in the environment.
Their offspring are bigger and better able to reproduce.
Their offspring can exist in both haploid and diploid stages.

Their offspring may be more adaptable to changes in the environment.

Which term describes the fusion of two gametes to form a diploid zygote?
Meiosis
Mitosis
Alternation of generations
Syngamy

syngamy

Which term describes the multicellular haploid form of a protist that shows alternation of generations?
Zygote
Gametophyte
Spore
Sporophyte

Gametophyte

Which structure mediates the attachment of spores to a surface on which to grow?
Holdfast
Chloroplast
Sporophyte
Flagella

holdfast

Which of the following statements about Ulva’s haploid stage is true?
Gametes of the same mating type fuse to produce a diploid zygote.
Haploid cells are produced by meiosis of diploid cells.
Haploid cells produce gametes by meiosis.
The haploid Ulva cells are genetically identical to their diploid parents.

Haploid cells are produced by meiosis of diploid cells.

How does the haploid form of Ulva "switch" to its diploid form?
Gametophytes produce cells that undergo mitosis to produce gametes that fuse to form a zygote.
Sporophytes produce cells that undergo mitosis to produce gametes that fuse to form a zygote.
Gametophytes produce cells that undergo meiosis and produce spores that germinate into diploid adults.
Sporophytes undergo meiosis to produce spores that germinate into diploid adults.

Gametophytes produce cells that undergo mitosis to produce gametes that fuse to form a zygote.

True or false? Organisms that exhibit alternation of generations reproduce sexually in the diploid stage.

False

Which species interaction applies to bees that harvest nectar and pollen from flowers?
Commensalism.
Competition.
Consumption.
Mutualism.

mutualism

Which process is not an example of consumption?
Herbivory.
Predation.
Commensalism.
Parasitism.

commensalism (Commensalism is a type of species interaction in which one participant benefits and the other participant is not affected by the interaction.)

True or false? One example of a coevolutionary arms race is when faster deer evolve and favor wolves and cougars that have stronger eyesight and senses of smell.

True

Which form of Plasmodium is the immediate cause of anemia in humans?
Diploid zygote.
Merozoites.
Gametocytes.
Sporozoites.

Merozoites

Which of the following statements about the Plasmodium parasite is true?
Plasmodium cells in the mosquito’s saliva target red blood cells in a human and produce offspring that infect liver cells.
Merozoites live off the hemoglobin and nutrients in red blood cells and divide to produce more merozoites, destroying red blood cells in the process.
The diploid zygote moves from the infected human to the mosquito as part of the mosquito’s blood meal.
The diploid zygote undergoes meiosis and mitosis to produce haploid merozoites.

Merozoites live off the hemoglobin and nutrients in red blood cells and divide to produce more merozoites, destroying red blood cells in the process.