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Biology

Review Questions

BiologyReview Questions
4.

Which polysaccharide is usually found in the cell wall of fungi?

  1. starch
  2. glycogen
  3. chitin
  4. cellulose
5.

Which of these organelles is not found in a fungal cell?

  1. chloroplast
  2. nucleus
  3. mitochondrion
  4. Golgi apparatus
6.

The wall dividing individual cells in a fungal filament is called a

  1. thallus
  2. hypha
  3. mycelium
  4. septum
7.

During sexual reproduction, a homothallic mycelium contains

  1. all septated hyphae
  2. all haploid nuclei
  3. both mating types
  4. none of the above
8.

The most primitive phylum of fungi is the ________.

  1. Chytridiomycota
  2. Zygomycota
  3. Glomeromycota
  4. Ascomycota
9.

Members of which phylum produce a club-shaped structure that contains spores?

  1. Chytridiomycota
  2. Basidiomycota
  3. Glomeromycota
  4. Ascomycota
10.

Members of which phylum establish a successful symbiotic relationship with the roots of trees?

  1. Ascomycota
  2. Deuteromycota
  3. Basidiomycota
  4. Glomeromycota
11.

The fungi that do not reproduce sexually use to be classified as ________.

  1. Ascomycota
  2. Deuteromycota
  3. Basidiomycota
  4. Glomeromycota
12.

What term describes the close association of a fungus with the root of a tree?

  1. a rhizoid
  2. a lichen
  3. a mycorrhiza
  4. an endophyte
13.

Why are fungi important decomposers?

  1. They produce many spores.
  2. They can grow in many different environments.
  3. They produce mycelia.
  4. They recycle carbon and inorganic minerals by the process of decomposition.
14.

A fungus that climbs up a tree reaching higher elevation to release its spores in the wind and does not receive any nutrients from the tree or contribute to the tree’s welfare is described as a ________.

  1. commensal
  2. mutualist
  3. parasite
  4. pathogen
15.

A fungal infection that affects nails and skin is classified as ________.

  1. systemic mycosis
  2. mycetismus
  3. superficial mycosis
  4. mycotoxicosis
16.

Yeast is a facultative anaerobe. This means that alcohol fermentation takes place only if:

  1. the temperature is close to 37°C
  2. the atmosphere does not contain oxygen
  3. sugar is provided to the cells
  4. light is provided to the cells
17.

The advantage of yeast cells over bacterial cells to express human proteins is that:

  1. yeast cells grow faster
  2. yeast cells are easier to manipulate genetically
  3. yeast cells are eukaryotic and modify proteins similarly to human cells
  4. yeast cells are easily lysed to purify the proteins
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