Fungi
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Questions and Answers

What is the primary way fungi obtain their nutrients?

  • By absorbing nutrients from their external environment (correct)
  • By consuming other organisms
  • By producing their own food through photosynthesis
  • By breaking down inorganic molecules

What is the main component of the fungal cell wall?

  • Peptidoglycan
  • Cellulose
  • Lignin
  • Chitin (correct)

What is the term for fungi that obtain their nutrients from dead organic matter?

  • Saprophytes (correct)
  • Decomposers
  • Detritivores
  • Parasites

What is the characteristic of fungal growth temperature?

<p>It grows between 2-20°C (B)</p> Signup and view all the answers

What is the term for the ability of some fungi to grow in different forms depending on environmental conditions?

<p>Dimorphism (B)</p> Signup and view all the answers

What is the primary characteristic of unicellular fungi (yeasts)?

<p>They usually form multicellular colonies (B)</p> Signup and view all the answers

What is the characteristic of fungal movement?

<p>They are never motile (C)</p> Signup and view all the answers

What is the characteristic of the body structures of multicellular fungi?

<p>They have multicellular filaments (B)</p> Signup and view all the answers

What percentage of known fungal species are parasites or pathogens?

<p>30% (A)</p> Signup and view all the answers

Which of the following fungi causes skin and ear infections, bronchitis, and pneumonia?

<p>Mucor (D)</p> Signup and view all the answers

What is the primary effect of Aflatoxin B1 on the liver?

<p>Liver cancer (A)</p> Signup and view all the answers

Which of the following fungi is known to infect cereals such as rye?

<p>Claviceps purpurea (D)</p> Signup and view all the answers

What is the primary effect of ergotamine on humans?

<p>Psychotropic effects (C)</p> Signup and view all the answers

Which of the following fungi is known to produce toxic compounds that can cause hallucinations and temporary insanity?

<p>Claviceps purpurea (B)</p> Signup and view all the answers

What is the characteristic structure of Basidiomycetes?

<p>A club-like structure (B)</p> Signup and view all the answers

What is the function of the basidia in Basidiomycetes?

<p>To produce sexual spores (D)</p> Signup and view all the answers

What is the primary effect of Amanita phalloides on humans?

<p>Poisoning (A)</p> Signup and view all the answers

What type of fungi does Aspergillus flavus belong to?

<p>Ascomycetes (B)</p> Signup and view all the answers

What is the role of fungi in nutrient recycling?

<p>To break down complex molecules into smaller organic compounds (C)</p> Signup and view all the answers

What is the type of relationship between fungi and plants in mycorrhizae?

<p>Mutualistic (A)</p> Signup and view all the answers

What is the characteristic of lichens?

<p>A symbiotic association between a fungus and a photosynthetic microorganism (C)</p> Signup and view all the answers

What is the function of enzymes produced by fungi as decomposers?

<p>To break down complex molecules into smaller organic compounds (D)</p> Signup and view all the answers

What is the term for the fruiting body of Basidiomycetes?

<p>Basidiocarp (A)</p> Signup and view all the answers

What is the ecological role of fungi as decomposers?

<p>To maintain ecological balance (A)</p> Signup and view all the answers

What is the term used to describe molds and yeasts?

<p>Deuteromycetes (B)</p> Signup and view all the answers

What is the function of zygosporangia in Zygomycetes?

<p>To contain sexually produced spores (C)</p> Signup and view all the answers

What is the name of the common mold that is a food decomposer?

<p>Penicillium (A)</p> Signup and view all the answers

What is the term used to describe the Opisthokonts clade?

<p>A group of animals and their protist relatives (A)</p> Signup and view all the answers

What is the name of the phylum that includes black bread mold?

<p>Zygomycota (C)</p> Signup and view all the answers

What is the function of aerial hyphae in Zygomycetes?

<p>To provide structural support to the mycelium (D)</p> Signup and view all the answers

What is the term used to describe the spores produced by Chytrids?

<p>Zoospores (D)</p> Signup and view all the answers

What is the approximate number of species in the phylum Ascomycetes?

<p>65,000 (A)</p> Signup and view all the answers

What is the main function of the fungus Saccharomyces cerevisiae in the production of bread?

<p>Producing CO2 for fermentation (A)</p> Signup and view all the answers

What is the antibiotic produced by Penicillium griseofulvum?

<p>Griseofulvin (C)</p> Signup and view all the answers

Which fungal phylum is characterized by the formation of arbuscular mycorrhizae with plants?

<p>Glomeromycota (D)</p> Signup and view all the answers

What is the disease caused by the fungus Amanita phalloides?

<p>Mushroom food poisoning (B)</p> Signup and view all the answers

Which fungal group does the fungus Aspergillus flavus belong to?

<p>Ascomycota (C)</p> Signup and view all the answers

What is the purpose of the fungus Penicillium chrysogenum in the production of antibiotic?

<p>Producing penicillin (D)</p> Signup and view all the answers

Which fungal phylum do mushrooms belong to?

<p>Basidiomycota (C)</p> Signup and view all the answers

What is the disease caused by the fungus Histoplasma capsulatum?

<p>Histoplasmosis (C)</p> Signup and view all the answers

What is the name of the supergroup that includes fungi, animals, and their protist relatives?

<p>Opisthokonts (D)</p> Signup and view all the answers

What is the term for the spores produced by fungi that are similar to conidia?

<p>Zoospores (C)</p> Signup and view all the answers

How many species of fungi are estimated to belong to the phylum Ascomycetes?

<p>65,000 species (A)</p> Signup and view all the answers

What is the characteristic structure of Zygomycetes that allows them to survive under unfavourable conditions?

<p>Zygosporangia (D)</p> Signup and view all the answers

Which type of fungi is commonly known as a food decomposer?

<p>Penicillium (B)</p> Signup and view all the answers

What is the term for the type of fungi that includes black bread mold?

<p>Zygomycetes (A)</p> Signup and view all the answers

What is the name of the fungus that undergoes budding?

<p>Saccharomyces cerevisiae (D)</p> Signup and view all the answers

What is the primary function of the haustoria in arbuscular mycorrhizal fungi?

<p>To penetrate the cell walls of root cells (B)</p> Signup and view all the answers

What is the type of mycorrhizal relationship formed by Glomeromycetes?

<p>Arbuscular (A)</p> Signup and view all the answers

What is the characteristic feature of Ascomycetes reproduction?

<p>Production of both conidia and ascospores (A)</p> Signup and view all the answers

What is the function of the ascocarps in Ascomycetes?

<p>To contain the spore-producing structures (D)</p> Signup and view all the answers

What is the characteristic of the relationship between Glomeromycetes and plant roots?

<p>Mutualistic (D)</p> Signup and view all the answers

What is the type of structure produced by Ascomycetes for asexual reproduction?

<p>Conidiophores (A)</p> Signup and view all the answers

What is the function of the fungal hypha in arbuscular mycorrhizal relationships?

<p>To penetrate the cell walls of root cells (D)</p> Signup and view all the answers

What is the primary characteristic of Glomeromycetes?

<p>Formation of arbuscular mycorrhizae (A)</p> Signup and view all the answers

What percentage of known fungal species are parasites or pathogens?

<p>30% (D)</p> Signup and view all the answers

What type of fungus is Mucor?

<p>Zygomycete (B)</p> Signup and view all the answers

What is the toxin produced by Aspergillus flavus that can cause liver cancer?

<p>Aflatoxin B1 (A)</p> Signup and view all the answers

Which fungus is known to infect cereals such as rye and produce ergotamine?

<p>Claviceps purpurea (B)</p> Signup and view all the answers

What is the effect of Aflatoxin B1 on the liver?

<p>It causes liver cancer (A)</p> Signup and view all the answers

Which fungus is known to produce toxic compounds that can cause hallucinations and temporary insanity?

<p>Claviceps purpurea (A)</p> Signup and view all the answers

What is the characteristic of pathogenic fungi that infect plants?

<p>They produce mycotoxins (C)</p> Signup and view all the answers

What is the primary function of enzymes produced by fungi as decomposers?

<p>To break down complex molecules into smaller organic compounds (C)</p> Signup and view all the answers

Which fungus is known to cause bronchitis and pneumonia?

<p>Mucor (A)</p> Signup and view all the answers

What is the characteristic of lichens?

<p>A symbiotic association between a fungus and a bacterium (B)</p> Signup and view all the answers

What is the role of fungi in nutrient recycling?

<p>To maintain ecological balance by recycling nutrients (A)</p> Signup and view all the answers

What is the characteristic of Basidiomycetes?

<p>They have a club-like structure called a basidium (B)</p> Signup and view all the answers

What is the primary role of basidia in Basidiomycetes?

<p>To produce sexual spores (basidiospores) (A)</p> Signup and view all the answers

What is the type of relationship between fungi and plants in mycorrhizae?

<p>Mutualistic (D)</p> Signup and view all the answers

What is the primary function of fungi as decomposers?

<p>To break down complex molecules into smaller organic compounds (D)</p> Signup and view all the answers

What is the characteristic of fungal growth?

<p>They can grow in a wide range of environments (D)</p> Signup and view all the answers

What is the effect of α-amanitin on eukaryotic cells?

<p>Inhibits eukaryotic RNA pol II (D)</p> Signup and view all the answers

What is the main characteristic of opportunistic mycoses?

<p>Caused by fungi that are part of our normal flora (D)</p> Signup and view all the answers

What is the term for fungal infections of hair, nails, and skin?

<p>Superficial mycoses (C)</p> Signup and view all the answers

What is the cause of ringworm and athlete's foot?

<p>Trichophyton and Epidermophyton (B)</p> Signup and view all the answers

What is the term for fungal infections that spread through the bloodstream?

<p>Systemic mycoses (C)</p> Signup and view all the answers

What is the effect of phalloidin on F-actin?

<p>Inhibits F-actin polymerisation (D)</p> Signup and view all the answers

What is the characteristic of chromomycosis?

<p>Caused by fungi Hormodendrum pedrosoi and Phialophora verrucosa (C)</p> Signup and view all the answers

What is the cause of candidiasis?

<p>Yeast Candida albicans (B)</p> Signup and view all the answers

What is the function of septa in fungal hyphae?

<p>To divide the hypha into cells, allowing for cell-to-cell movement of organelles (D)</p> Signup and view all the answers

What is the term for the fusion of cytoplasm from two parent mycelia during sexual reproduction?

<p>Plasmogamy (C)</p> Signup and view all the answers

What is the term for the mycelium that contains haploid nuclei from each parent, which do not fuse right away?

<p>Heterokaryon (A)</p> Signup and view all the answers

How do fungi reproduce asexually?

<p>By producing haploid spores through mitosis (A)</p> Signup and view all the answers

What is the term for the spore-producing structures in multicellular fungi?

<p>Sporangia (D)</p> Signup and view all the answers

What is the process by which spores grow back into vegetative cells under favorable conditions?

<p>Germination (D)</p> Signup and view all the answers

What is the main function of arbuscular mycorrhizal fungi in their mutualistic relationship with plants?

<p>To deliver phosphate ions and minerals to plants (A)</p> Signup and view all the answers

What is the characteristic of the spore-producing structures in Ascomycetes?

<p>They produce both conidia and ascospores (B)</p> Signup and view all the answers

What is the name of the phylum that includes fungi that form arbuscular mycorrhizae?

<p>Glomeromycota (A)</p> Signup and view all the answers

What is the function of the specialized hyphae called haustoria in arbuscular mycorrhizal fungi?

<p>To penetrate plant cell walls (D)</p> Signup and view all the answers

What is the name of the fruiting body of Ascomycetes that contains the spore-producing structures?

<p>Ascocarp (C)</p> Signup and view all the answers

What is the term for the mutually beneficial relationship between fungi and plant roots?

<p>Mycorrhizae (D)</p> Signup and view all the answers

What is the name of the phylum that includes fungi such as black bread mold?

<p>Zygomycota (D)</p> Signup and view all the answers

What is the characteristic of fungal hyphae?

<p>They are long, branching filaments (A)</p> Signup and view all the answers

Which of the following is a characteristic of Chytrids?

<p>They produce flagellated spores (A)</p> Signup and view all the answers

What is the name of the supergroup that includes fungi, animals, and their protist relatives?

<p>Unikonts (B)</p> Signup and view all the answers

What is the term for the type of fungi that includes molds and yeasts?

<p>Deuteromycetes (A)</p> Signup and view all the answers

What is the function of zygosporangia in Zygomycetes?

<p>To produce spores by sexual reproduction (C)</p> Signup and view all the answers

What is the primary effect of aflatoxin B1 on the liver?

<p>Cancer due to p53 mutations (C)</p> Signup and view all the answers

What is the common feature of pathogenic Zygomycetes?

<p>Causing skin and ear infections, bronchitis, and pneumonia (C)</p> Signup and view all the answers

What is the role of Claviceps purpurea?

<p>Producing ergotamine and lysergic acid (C)</p> Signup and view all the answers

What is the characteristic of Amanita phalloides?

<p>Containing lethal toxins (C)</p> Signup and view all the answers

What percentage of known fungal species are parasites or pathogens?

<p>30% (B)</p> Signup and view all the answers

What is the effect of ergotamine and lysergic acid on humans?

<p>Psychotropic effects (C)</p> Signup and view all the answers

Which fungus is used to produce an antibiotic that inhibits the growth of Staphylococcus?

<p>Penicillium chrysogenum (B)</p> Signup and view all the answers

What is the characteristic of the fungus Saccharomyces cerevisiae in relation to food production?

<p>It produces enzymes used for alcohol fermentation and is also used as baking yeast (A)</p> Signup and view all the answers

Which fungal phylum is characterized by the production of sexual spores (ascospores) produced internally in sacs called asci?

<p>Ascomycota (A)</p> Signup and view all the answers

What is the disease caused by the fungus Histoplasma capsulatum?

<p>Histoplasmosis (D)</p> Signup and view all the answers

Which fungus is used to produce insulin-like growth factor (IGF) through genetic engineering?

<p>Saccharomyces cerevisiae (A)</p> Signup and view all the answers

What is the characteristic of the fungus Penicillium griseofulvum?

<p>It produces griseofulvin (C)</p> Signup and view all the answers

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