Saturday 27 June 2015

Fungi - Molds and Yeasts

Fungi - Molds and Yeasts

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Select the statement that does not apply to the kingdom Fungi__________.

a. The fungi are eukaryotic, multicellular, ingestive heterotrophs
b. Some fungi form beneficial interrelationships with plants
c. The fungal life cycle typically includes a spore stage
d. Certain fungi are natural sources of antibiotic substances

The amount of peptidoglycan in the cell walls of a mushroom__________.

a. is greater than the amount of chitin in the cell walls of a mushroom
b. is lesser than the amount of chitin in the cell walls of a mushroom
c. is exactly or approximately equal to the amount of chitin in the cell walls of a mushroom
d. none of the above

Yeast play an important role in the alcohol industry, converting pyruvic acid into carbon dioxide and ethyl alcohol by the process of__________.

a. glycolysis
b. respiration
c. fermentation
d. Krebs cycle

Ascospores located in asci are found in__________.

a. conidiocarps           
b. sorocarps
c. ascocarps 
d. plasmodiocarps

Slime molds differ from the moldy fungi__________.

a. in their mode of nutrition: phagocytosis for the slime molds; absorptive heterotroph for moldy fungi
b. in that the moldy fungi produce amoeboid or flagellated cells and the slime molds do not
c. Both (a) and (b)
d. none of the above

Fungi are important to food webs because__________.

a. they are photoautotrophs
b. they have prokaryotic cell structure
c. they serve as key decomposers of dead organic matter
d. they generate antibiotics that kill competing plants and animals

__________ exhibit yeast-like growth at human body temperatures and mold-like growth at room temperature.

a. Dimorphic fungi
b. Black bread molds
c. Sac fungi
d. Water molds

Saprophytic fungi__________.

a. engulf their food in order to break it down.
b. secure their food from dead organic materials
c. both (a) and (b)
d. none of the above

The evolutionary record suggests that the first occurrence of multicellularity was in the kingdom__________.

a. Monera       
b. Protista
c. Fungi          
d. Plantae

The amount of phagocytosis done by the Plasmodium__________.

a. is greater than by the water mold mycelium
b. is lesser than by the water mold mycelium
c. is equal to by the water mold mycelium
d. none of the above

Water molds belong to which division?

a. Ascomycota           
b. Basidiomycota
c. Chytridiomycota    
d. Oomycota

__________ produce basidiospores.

a. Slime molds
b. Dimorphic fungi
c. Club fungi
d. Sac fungi

Which of these spores are characteristic of the black bread mold Rhizopus?

a. Arthrospore and Ascospore
b. Ascospore and Zygospore
c. Arthrospore and Blastospore
d. Sporangiospore and Zygospore

Which of the following is correct?

a. All members of Sac fungus are also members of chemo-lithotrophic autotroph, but not all members of chemolithotrophic autotroph are members of Sac fungus.
b. All members of chemolithotrophic autotroph are also members of Sac fungus, but not all members of Sac fungus are members of chemolithotrophic autotroph.
c. All members of Sac fungus are members of chemolithotrophic autotroph, and all members of chemolithotrophic autotroph are members of Sac fungus.
d. none of the above

Which of the following does not represent a human disease caused by fungi?

a. Ringworm
b. Cryptococcosis
c. Malaria
d. Jock itch

Fungi that lack partitions (septa) are called__________.

a. ahyphae     
b. coenocytic
c. yeast          
d. conidia

The number of sets of chromosomes in a dikaryotic cell__________.

a. is greater than diploid cell
b. is lesser than diploid cell
c. is equal to diploid cell
d. none of these

The fruiting body of a mushroom is called__________.

a. sorocarps   
b. basidiocarps
c. ascocarps  
d. plasmodiocarps

__________ produce motile sexual and asexual spores.

a. Slime molds
b. Dimorphic fungi
c. Club fungi
d. Water molds

Fungi___________.

a. are photosynthetic
b. are prokaryotic cells
c. have cell walls of peptidoglycan
d. secrete extracellular enzymes to breakdown nutrients

__________ produce ascospores in an ascus.

a. Slime molds
b. Dimorphic fungi
c. Club fungi
d. Sac fungi

Ecologically fungi are important because__________.

a. they act as decomposers and aid in nutrient cycling
b. they are a major cause of plant diseases
c. Both (a) and (b)
d. none of the above

The fungus responsible for ergotism belongs to which of the following fungal divisions?

a. Deuteromycota      
b. Oomycota
c. Zygomycota           
d. Ascomycota

Why are slime molds considered to resemble plants?

a. They can photosynthesize
b. They have cell walls composed largely of cellulose
c. They form a threadlike structure
d. They form structures that resemble leaves

The most significant reason why fungi are not in the kingdom Plantae is that fungi__________.

a. are chemoorganotrophic heterotrophs
b. have unicellular and multi-cellular forms
c. are prokaryotes
d. are eukaryotes

Which spore is on a club and results from the fusion of two nuclei from different strains of the same fungi?

a. Ascospore  
b. Basidiospore
c. Blastospore
d. Conidiospore

The bread mold Rhizopus stolonifer belongs to which of the following fungal divisions?

a. Ascomycota           
b. Deuteromycota
c. Oomycota  
d. Zygomycota

The basidiomycetes include plant parasites that can cause__________.

a. rust and smut diseases
b. candidiasis
c. ergot disease
d. Dutch elm disease & chestnut blight

Ergotism is responsible for all of the following except__________.

a. hallucinations
b. Irish potato famine
c. both (a) and (b)
d. gangrene
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