Question 1

The carcinogenic compound ________,which damages kidneys and the nervous system,is produced by some strains of Aspergillus flavus.

Accepted Answer

Aflatoxins
Aflatoxin

Question 2

A mycologist visits your biology class and discusses her research on a particular fungus that lives on the bark of damaged spruce trees.She explains that the fungal hyphae of her research organism is heterokaryotic.You raise your hand and request that she define that word.Her correct response is

Accepted Answer

A) heterokaryotic means that the nuclei of the fungal hyphae are genetically the same. 
B) heterokaryotic means that the nuclei of each compartment of the hyphae are genetically distinct. 
C) heterokaryotic means that each compartment of the hyphae contain two distinct nuclei. 
D) heterokaryotic means that each compartment of the hyphae contains only one nucleus. 
A) heterokaryotic means that the nuclei of the fungal hyphae are genetically the same. 
B) heterokaryotic means that the nuclei of each compartment of the hyphae are genetically distinct. 
C) heterokaryotic means that each compartment of the hyphae contain two distinct nuclei. 
D) heterokaryotic means that each compartment of the hyphae contains only one nucleus. B

Question 3

Why are neocallimastigomycetes being studied for biofuel production?

Accepted Answer

A) They can ferment glucose into alcohol. 
B) They can release fermentable sugars from structural polysaccharides. 
C) They can generate methane. 
D) They provide energy to power fermentation. 
E) They can extract pollutants from biofuel starting materials. 
A) They can ferment glucose into alcohol. 
B) They can release fermentable sugars from structural polysaccharides. 
C) They can generate methane. 
D) They provide energy to power fermentation. 
E) They can extract pollutants from biofuel starting materials. B

Question 4

Fungi are ecologically important for all of the following reasons,except

Accepted Answer

A) They break down organic materials and return them to the ecosystem. 
B) All can exist in symbiotic relationships. 
C) Some can ferment and produce bread,beer,wine,cheese,and soy sauce. 
D) Some cause diseases in plants and animals. 
E) They can break down lignin. 
A) They break down organic materials and return them to the ecosystem. 
B) All can exist in symbiotic relationships. 
C) Some can ferment and produce bread,beer,wine,cheese,and soy sauce. 
D) Some cause diseases in plants and animals. 
E) They can break down lignin.

Question 5

Comparisons of DNA sequences have revealed that glomeromycetes are not in the same clade as the zygomycetes.

Accepted Answer

A) True 
 B)False

Question 6

Mycorrhizae,specialized symbiotic associations between the roots of plants and fungi,are characteristic of

Accepted Answer

A) all plants. 
B) about 90% of all plants. 
C) about 60% of all plants. 
D) about 40% of all plants. 
E) about 20% of all plants. 
A) all plants. 
B) about 90% of all plants. 
C) about 60% of all plants. 
D) about 40% of all plants. 
E) about 20% of all plants.

Question 7

A type of fungi that has been long useful for baking,brewing,and wine making,and is now becoming very important in genetic research is ________.

Accepted Answer

The answer of A type of fungi that has been...

Question 8

Recent phylogenetic analysis has provided evidence to justify classifying microsporidians as fungi.

Accepted Answer

A) True 
 B)False

Question 9

Zygospores are used to resist harsh conditions.

Accepted Answer

A) True 
 B)False

Question 10

Alexander Fleming kept finding mold contamination that was killing his bacterial cultures.This observation eventually lead to the development of the antibiotic penicillin.Why would a fungus produce a compound that is selectively toxic to bacteria?

Accepted Answer

A) Fungi eat bacteria. 
B) Fungi are killed by bacterial toxins. 
C) Fungi compete with bacteria for resources. 
D) Killing bacteria is an accident. 
A) Fungi eat bacteria. 
B) Fungi are killed by bacterial toxins. 
C) Fungi compete with bacteria for resources. 
D) Killing bacteria is an accident.

Question 11

Why is it difficult to treat fungal infections in humans?

Accepted Answer

A) Fungal cells are eukaryotic 
B) Fungal cells have a chitonous cell wall. 
C) Fungal cells are dikaryotic. 
D) Fungal cells cause chytridiomycosis. 
A) Fungal cells are eukaryotic 
B) Fungal cells have a chitonous cell wall. 
C) Fungal cells are dikaryotic. 
D) Fungal cells cause chytridiomycosis.

Question 12

The fruiting structures formed by secondary mycelia of basidiomycetes are known as

Accepted Answer

A) mushrooms. 
B) yeasts. 
C) lichen. 
D) ascocarps. 
E) basidia. 
A) mushrooms. 
B) yeasts. 
C) lichen. 
D) ascocarps. 
E) basidia.

Question 13

Ectomycorrhizae,associations in which the fungal hyphae surround but do not penetrate the cell walls of the plant roots,usually involve

Accepted Answer

A) ascomycetes. 
B) basidiomycetes. 
C) zygomycetes. 
D) ascomycetes and basidiomycetes. 
E) ascomycetes and zygomycetes. 
A) ascomycetes. 
B) basidiomycetes. 
C) zygomycetes. 
D) ascomycetes and basidiomycetes. 
E) ascomycetes and zygomycetes.

Question 14

Ruminant animals have symbiotic fungi that

Accepted Answer

A) digest cellulose and lignin. 
B) infect milk-producing glands,fermenting the milk. 
C) produce toxins in muscle tissue. 
D) produce natural antibiotics. 
A) digest cellulose and lignin. 
B) infect milk-producing glands,fermenting the milk. 
C) produce toxins in muscle tissue. 
D) produce natural antibiotics.

Question 15

Which gene product would be most useful for distinguishing between a microsporidian and a blastocladiomycete?

Accepted Answer

A) Rubisco 
B) Chitin 
C) DNA polymerase 
D) Phospholipidase 
E) ATP synthase 
A) Rubisco 
B) Chitin 
C) DNA polymerase 
D) Phospholipidase 
E) ATP synthase

Question 16

Which molecule would be an indicator of fungal contamination in a drug preparation?

Accepted Answer

A) Cellulose 
B) Collagen 
C) Chitin 
D) Deoxyribose 
E) Lignin 
A) Cellulose 
B) Collagen 
C) Chitin 
D) Deoxyribose 
E) Lignin

Question 17

What type of symbiotic relationship is exemplified by mycorrhizal fungi?

Accepted Answer

A) Mutualism 
B) Commensalism 
C) Parasitism 
D) Atavism 
A) Mutualism 
B) Commensalism 
C) Parasitism 
D) Atavism

Question 18

An ________ is a nonphotosynthetic plant-a third member of a symbiotic relationship involving a fungus and another plant,obtaining nutrients from these two members.

Accepted Answer

The answer of An ________ is a nonphotosynthetic plant-a third...

Question 19

Fungal hyphae in which two genetically distinct kinds of nuclei occur together are said to be ________.

Accepted Answer

The answer of Fungal hyphae in which two genetically distinct...

Question 20

The fungi that cause serious plant disease,such as Dutch elm disease and chestnut blight,belong to the phylum

Accepted Answer

A) Ascomycota. 
B) Zygomycota. 
C) Imperfect fungi. 
D) Basidiomycota. 
E) Actinomycetes. 
A) Ascomycota. 
B) Zygomycota. 
C) Imperfect fungi. 
D) Basidiomycota. 
E) Actinomycetes.

Exam 31: Fungi

The carcinogenic compound ________,which damages kidneys and the nervous system,is produced by some strains of Aspergillus flavus.

A mycologist visits your biology class and discusses her research on a particular fungus that lives on the bark of damaged spruce trees.She explains that the fungal hyphae of her research organism is heterokaryotic.You raise your hand and request that she define that word.Her correct response is

Why are neocallimastigomycetes being studied for biofuel production?

Fungi are ecologically important for all of the following reasons,except

Comparisons of DNA sequences have revealed that glomeromycetes are not in the same clade as the zygomycetes.

Mycorrhizae,specialized symbiotic associations between the roots of plants and fungi,are characteristic of

A type of fungi that has been long useful for baking,brewing,and wine making,and is now becoming very important in genetic research is ________.

Recent phylogenetic analysis has provided evidence to justify classifying microsporidians as fungi.

Zygospores are used to resist harsh conditions.

Alexander Fleming kept finding mold contamination that was killing his bacterial cultures.This observation eventually lead to the development of the antibiotic penicillin.Why would a fungus produce a compound that is selectively toxic to bacteria?

Why is it difficult to treat fungal infections in humans?

The fruiting structures formed by secondary mycelia of basidiomycetes are known as

Ectomycorrhizae,associations in which the fungal hyphae surround but do not penetrate the cell walls of the plant roots,usually involve

Ruminant animals have symbiotic fungi that

Which gene product would be most useful for distinguishing between a microsporidian and a blastocladiomycete?

Which molecule would be an indicator of fungal contamination in a drug preparation?

What type of symbiotic relationship is exemplified by mycorrhizal fungi?

An ________ is a nonphotosynthetic plant-a third member of a symbiotic relationship involving a fungus and another plant,obtaining nutrients from these two members.

Fungal hyphae in which two genetically distinct kinds of nuclei occur together are said to be ________.

The fungi that cause serious plant disease,such as Dutch elm disease and chestnut blight,belong to the phylum

The Science of Biology

The Nature of Molecules and the Properties of Water

The Chemical Building Blocks of Life

Cell Structure

Membranes

Energy and Metabolism

How Cells Harvest Energy

Photosynthesis

Cell Communication

How Cells Divide

Sexual Reproduction and Meiosis

Patterns of Inheritance

Chromosomes, mapping, and the Meiosisinheritance Connection

Dna: the Genetic Material

Genes and How They Work

Control of Gene Expression

Biotechnology

Genomics

Cellular Mechanisms of Development

Genes Within Populations

The Evidence for Evolution

The Origin of Species

Systematics,phylogenies,and Comparative Biology

Genome Evolution

The Origin and Diversity of Life

Viruses

Prokaryotes

Protists

Seedless Plants

Seed Plants

Animal Diversity and the Evolution of Body Plans

Protostomes

Deuterostomes

Plant Form

Transport in Plants

Plant Nutrition and Soils

Plant Defense Responses

Sensory Systems in Plants

Plant Reproduction

The Animal Body and Principles of Regulation

The Nervous System

Sensory Systems

The Endocrine System

The Musculoskeletal System

The Digestive System

The Respiratory System

The Circulatory System

Osmotic Regulation and the Urinary System

The Immune System

The Reproductive System

Animal Development

Behavioral Biology

Ecology of Individuals and Populations

Community Ecology

Dynamics of Ecosystems

The Biosphere and Human Impacts

Conservation Biology

Filters