All fungi. make their food. absorb their food. produce mushrooms. have chlorophyll. Fungi do NOT. carry on photosynthesis. grow on their food source. digest food outside their bodies. absorb food through their cell walls. Fungi resemble plants in that they both always. have stems.
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
All fungi • make their food. • absorb their food. • produce mushrooms. • have chlorophyll.
Fungi do NOT • carry on photosynthesis. • grow on their food source. • digest food outside their bodies. • absorb food through their cell walls.
Fungi resemble plants in that they both always • have stems. • grow from the ground. • are multicellular. • have cell walls.
A mushroom is a fungal • fruiting body. • lichen. • mycorrhiza. • yeast.
The tangled mass that makes up the body of a fungus is the • hypha. • rhizoid. • mycelium. • stolon.
Fungal hyphae, shown in Figure 21–1, differ in that some lack • cell walls. • cross walls. • nuclei. • cytoplasm.
Most fungi reproduce • asexually only. • sexually only. • both sexually and asexually. • by budding.
Stinkhorns, which mimic the odor of rotting meat, have spores that are dispersed by • wind. • birds. • snow. • flies.
When hyphae of opposite mating types meet, they first • enter mitosis • grow and develop. • enter meiosis. • fuse.
Sporangia are found at the tops of specialized hyphae called • sporangiophores. • mycelia. • gametangia. • stolons.
Only during a small part of their life cycles are most fungi • diploid. • haploid. • 1N. • 3N.
Which of the following processes is first to occur after the nuclei of opposite mating types fuse? • Spores are produced. • Gametes are produced. • Mitosis occurs. • Meiosis occurs.
Dark fuzz that grows on bread is an example of • toadstool. • spore. • yeast. • mold.
Rhizopus reproduces • by sexual fusion only. • by sexual fusion and asexually only. • by budding and asexually only. • all of the above
In bread mold, haploid gametes are produced by the • gametangia. • rhizoids. • zygospores. • sporangiophores.
Bread rises because fermentation by yeast produces • spores. • rhizoids. • water. • carbon dioxide.
The dry, powdered yeast used to bake bread actually contains • zygospores. • ascospores. • conidia. • sporangia.
Yeasts obtain energy by alcoholic fermentation in the absence of • moisture. • carbon dioxide. • oxygen. • sugar.
Mushrooms are classified as • common molds. • sac fungi. • club fungi. • imperfect fungi.
Which structure is NOT found in a mushroom? • ascus • gills • cap • stalk
In mushrooms, the basidia are found in the • base. • stalk. • cap. • root.
Over time, nutrients at the center of a large underground mycelium become depleted, causing new mushrooms to sprout only • in a cluster at the center. • in a ring at the outer edges. • when the nutrients are replaced. • after budding takes place.
Each of the following is a basidiomycete EXCEPT • shelf fungi. • mushrooms. • puffballs. • cup fungi.
In basidiomycetes, the primary mycelia of different mating types fuse to form • a secondary mycelium. • haploid zygotes. • gills. • haploid nuclei of the same mating type.
Which statement about Penicillium is correct? • It produces mushrooms. • It causes bread to rise. • It is the source of an antibiotic. • It causes athlete’s foot.
Penicillium reproduces only asexually but otherwise resembles a(an) • ascomycete. • zygomycete. • basidiomycete. • lichen.
Penicillium may have evolved from an ascomycete that lost its ability to carry out • asexual reproduction. • sexual reproduction. • spore formation. • conidia formation.
An important role of fungi in an ecosystem is • photosynthesis. • breaking down dead organisms. • making alcohol. • killing bacteria.
Millions of years ago, fungi might have been important to the success of • worms. • grasshoppers. • bacteria. • plants.
Fungi that absorb food from decaying organic matter are • parasites. • saprobes. • mutualists. • autotrophs.
Fungi feed on • only living organisms. • only dead organisms. • both living and dead organisms. • only other fungi.
The breakdown of dead organisms is sped on by the fungal production of • alcohols. • acids. • digestive enzymes. • recycled nutrients.
Which of the following statements about fungi is true? • They bind trace elements and hold them. • They return trace elements to the soil. • They do not affect trace elements. • They deplete the soil of trace elements.
The human disease ringworm is caused by • worms. • bacteria. • a fungus. • yeasts.
The growth of yeasts in moist regions of the body is kept in check by competition from • antibiotics. • bacteria. • rusts. • mildews.
Crop damage by fungal diseases is • greatest in tropical areas. • least in tropical areas. • greatest in temperate areas. • not affected by climate.
The fungus that forms a mycelium within the outer layers of human skin causes • ringworm and athlete’s foot. • thrush and reproductive-tract infections. • reproductive-tract infections and ringworm. • athlete’s foot and thrush.
Each of the following is true of wheat rust EXCEPT that it • is caused by a basidiomycete. • is carried by insects into wheat fields. • is controlled by destroying barberry plants. • produces two kinds of spores.
The normal balance between bacteria and yeasts in the body can be upset by • eating yeast-leavened bread. • eating edible mushrooms. • using antibiotics. • being exposed to mushroom spores.
Figure 21–2 illustrates an association of a(an) • cyanobacterium and a plant. • alga or cyanobacterium and a fungus. • plant and a fungus. • alga and a plant.
Which of the following is NOT a single organism? • rust • smut • yeast • lichen
Which statement about lichens is correct? • They are not tolerant of harsh conditions. • They cannot make their own food. • They grow only in soil. • They are composed of an alga or a cyanobacterium and a fungus living together.
The association of plants and fungi in mycorrhizae illustrates a type of relationship called • parasitism. • mutualism. • competition. • parallelism.
In most lichens, the fungus is a(an) • basidiomycete. • zygomycete. • ascomycete. • deuteromycete.
Beneath the forest floor, carbon atoms can be moved from one tree to the next by • orchids. • fungal spores. • mycorrhizae. • lichens.
Fungi are prokaryotic heterotrophs. _________________________ • True • False
Fungi absorb their food. _________________________ • True • False
In some fungi, the nuclei are divided by cross walls. _________________________ • True • False
Fungal cell walls are composed of cellulose. _________________________ • True • False
During most of the life cycle of a fungus, the nuclei are diploid. _________________________ • True • False