17 Questions
What is a characteristic of Euglena that challenges the two kingdom classification?
It has features of both plants and animals
Which of the following organisms has flagella and is autotrophic?
Chlamydomanas
What is a characteristic of Slime molds that challenges the two kingdom classification?
They resemble animals in one phase and plants in another phase
What is a common feature among Euglena, Chlamydomanas, and Slime molds?
They all challenge the two kingdom classification
According to the passage, which of the following statements is true about the two kingdom classification?
It is a flawed classification system
Which taxonomic rank includes the most similar characters among its members?
Family
What is the primary function of herbaria?
To preserve and study plant specimens
Which microorganisms are found in the gut of cows and buffaloes?
Methanogens
Which organisms are best suited to indicate pollution in the environment?
Lichens
Which organism has a true nucleus absent?
Mucor
What does the abbreviation ICBN represent?
International Code for Botanical Nomenclature
What is the process of fusion of two haploid cells, including their nuclei?
Plasmogamy
Which organism is responsible for producing CO2 in bread manufacturing?
Yeast
In which type of viral replication do viruses enter a cell, replicate, and then cause the cell to burst, releasing new viruses?
Lytic
What is the term for the sum total of chemical reactions occurring in an organism's body?
Metabolism
What is the outer protein covering of a virus?
Capsid
What is the term for pigment-containing membranous extensions in some cyanobacteria?
Chromatophores
Study Notes
Classification and Taxonomy
- Linnaeus' two-kingdom classification has demerits due to organisms like Euglena, Chlamydomonas, and slime molds, which exhibit characteristics of both plants and animals.
Classification of Organisms
- Euglena has features of both plants and animals.
- Chlamydomonas is autotrophic but has flagella.
- Slime molds resemble animals in one phase and plants in another phase.
Taxonomic Ranks
- The taxonomic rank with the least number of similar characters is the Division.
- A Class includes Orders, and a Family includes Genera.
Microorganisms
- The gut of cows and buffaloes possesses methanogens.
- True nucleus is absent in Mycoplasma.
Environmental Indicators
- Lichens are suitable indicators of pollution in the environment.
Characteristics of Organisms
- Cell walls are absent in Mycoplasma.
- Fungi multiply by fragmentation.
- Plasmogamy is the fusion of two haploid cells, including their nuclei.
###Viruses
- Viruses enter a cell, replicate, and cause the cell to burst, releasing new viruses (lytic cycle).
- Capsid is the protein cover of a virus.
- Viruses do not belong to any kingdom.
Microbial Features
- Cyanobacteria are also referred to as blue-green algae.
- Chromatophores are pigment-containing membranous extensions in some cyanobacteria.
Conservation
- Zoological parks are an in vivo mode of conservation, where wild animals are kept under human care.
This quiz assesses your understanding of the limitations of Linnaeus' two kingdom classification system. Identify the valid pointers to the demerits of this system, considering features of organisms like Euglena, Chlamydomanas, and slime molds.
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