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Quiz Chapter 8: Biodiversity

10 questions ยท Form 5 Biology Bab 8: Biodiversity

Question 1 of 10Score: 0

To which kingdom do mushrooms, yeast, and bread molds belong?

Full Question List & Answer Key

Prefer reading to quizzing? All 10 questions are listed below with the answer and explanation under each one.

1. To which kingdom do mushrooms, yeast, and bread molds belong?

  1. Plantae
  2. Protista
  3. Fungi
  4. Eubacteria
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Answer: C

Fungi are heterotrophic eukaryotic organisms with cell walls made of chitin.

2. Which level of biodiversity is demonstrated by the various cultivated breeds of domestic dogs or distinct varieties of rice?

  1. Ecosystem diversity
  2. Species diversity
  3. Genetic diversity
  4. Community diversity
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Answer: C

Genetic diversity refers to the variation of genes within a single species population.

3. What key structural feature distinguishes plant cell walls from fungal cell walls?

  1. Plant cell walls contain cellulose, whereas fungal cell walls contain chitin
  2. Plant cell walls contain peptidoglycan, whereas fungal cell walls contain starch
  3. Plant cell walls contain glycogen, whereas fungal cell walls contain cellulose
  4. Plant cell walls lack structural carbohydrates
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Answer: A

Plantae cell walls consist of cellulose; Fungi cell walls consist of chitin.

4. What type of diagram illustrates the evolutionary relationships and common ancestry among biological species?

  1. Dichotomous key
  2. Phylogenetic tree
  3. Food web
  4. Ecological pyramid
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Answer: B

A phylogenetic tree displays evolutionary pathways and shared ancestry between different taxa.

5. Which bacterium lives symbiotically inside root nodules of leguminous plants to fix atmospheric nitrogen?

  1. Rhizobium sp.
  2. Nitrosomonas sp.
  3. Escherichia coli
  4. Lactobacillus sp.
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Answer: A

Rhizobium sp. fixes atmospheric nitrogen gas into ammonium ions inside legume root nodules.

6. Who introduced the modern binomial system of nomenclature for naming living organisms?

  1. Charles Darwin
  2. Gregor Mendel
  3. Carl Linnaeus
  4. Robert Hooke
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Answer: C

Carl Linnaeus devised the two-part Latin binomial naming system for biology.

7. Which tool uses paired contrasting physical characteristics to identify unknown biological specimens?

  1. Phylogenetic tree
  2. Dichotomous key
  3. Cladogram
  4. Taxonomic hierarchy
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Answer: B

A dichotomous key provides series of two-choice structural statements leading to specimen identification.

8. An organism is unicellular, lacks a nuclear membrane, possesses a cell wall made of peptidoglycan, and reproduces via binary fission. To which kingdom does it belong?

  1. Archaebacteria
  2. Eubacteria
  3. Protista
  4. Fungi
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Answer: B

Eubacteria are true prokaryotes characterized by cell walls containing peptidoglycan.

9. Why are viruses excluded from the six-kingdom classification system?

  1. They lack genetic material
  2. They are obligate non-cellular entities requiring host cell machinery to reproduce
  3. They possess cell walls made of chitin
  4. They carry out autotrophic photosynthesis
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Answer: B

Viruses are non-living, non-cellular particles consisting only of nucleic acid and a capsid; they can reproduce only inside host cells.

10. What is the correct way to write the scientific name of the Asian elephant according to binomial nomenclature rules when typed?

  1. Elephas Maximus
  2. elephas maximus
  3. Elephas maximus
  4. Elephas Maximus
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Answer: C

The genus name starts with a capital letter, the species epithet is lowercase, and both words must be italicized in print.

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