Post by Admin on Jan 10, 2022 22:10:24 GMT 5.5
Select the incorrect statement
Zoological parks are the places where wild animals are kept in an unprotected environment.
The animals in zoological parks are under human care.
Zoological parks help to learn more about the food habits and behaviour of animals.
All animals are provided conditions similar to their natural habitats.
A specimen was having the following properties:
1. Nuclear membrane: present, 2. Cell wall: without cellulose, 3. Body organisation: loose tissue, 4. Mode of nutrition: Heterotrophic (saprophytic/parasitic)
Based on the above properties, the specimen is likely to belong to the __kingdom of Whittaker's classification.
Plantae
Animalia
Fungi
Protista
‘No individual is immortal.’ This statement is applicable to_____
All living eukaryotes and prokaryotes
All living organisms except viruses
All living unicellular prokaryotes
All living multicellular eukaryotes
No individual is immortal. This statement is applicable to all living multicellular organisms. But, in case of unicellular prokaryotes, the single cell divides and gives rise to two new individuals. Thus, the parent cell is not dead but it is transformed into a new progeny cell. Hence, "No individual is immortal" is not applicable to single celled organisms. In case of multicellular organisms, the parent organism dies and its cells do not form part of the cells of the progeny. Hence, the statement, ‘No individual is immortal’ is applicable to all multicellular living organisms. Viruses are not considered as truly living, hence they cannot be considered immortal.
The property which unambiguously (without exception)represents a particular character is known as a defining property. Which of the following is not such a property of living organisms?
Cellular organisation
Metabolism
In vitro metabolic reactions
Consciousness
Cellular organisation, consciousness and metabolism are the defining properties of all living organisms. An isolated metabolic reaction outside the body of an organism, performed in a test tube is neither living nor non-living. Hence, while metabolism is a defining feature of all living organisms without exception, isolated metabolic reactions in vitro are not living things but surely living reactions.
Select the correct statement:
The number and types of organisms present on earth is 1.7 -1.8 million
The process of scientific nomenclature or naming is followed by identification
The generic name and specific epithet in binomial nomenclature, when printed, are separately underlined
In taxonomy, characterisation, identification, classification and nomenclature are basic processes
Statement in option d is correct. The number and types of organisms present on earth is biodiversity. The number of species that are known and described range between 1.7 -1.8 million. So, the statement of option a is incorrect. Nomenclature or naming is possible only when the organism is described correctly, i.e. identification. So, identification is followed by nomenclature. Hence, option b statement is incorrect. The generic name and specific epithet in binomial nomenclature, when printed, are in italics. When handwritten, they are separately underlined. So, option c statement is incorrect.
Chordata in Homo sapiens and Angiospermae in Triticum aestivum represent.
Class and phylum respectively
Class and division respectively
Division and phylum respectively
Phylum and division respectively
Chordata is the phylum of Homo sapiens. Angiospermae is the division of Triticum aestivum. The category Phylum in animals is equivalent to the category Division in plants.
For the taxonomic study and reference of an extinct animal which of the following taxonomic aid will be most useful?
Herbarium
Zoological parks
Museum
Both (b) and (c)
Museum has collections of preserved plant and animal specimens for study and reference. Museums often have collections of skeletons of animals too. So, the taxonomic aid most useful for study and reference of an extinct animal is museum.
An organism was earlier classified as a member of kingdom Protista as per five kingdom classification was reclassified into kingdom Monera. Which of the following characters must be taken into consideration for reclassification?
Presence/absence of cell wall
Unicellular/multicellular
Autotrophic /heterotrophic
Presence /absence of nuclear membrane
The unicellular organisms can be in the kingdom Monera or Protista. The cell wall may be present in both Monera or Protista. Both Monera and Protista members show autotrophic or heterotrophic modes of nutrition. The only character among the given options that clearly differentiates kingdom Monera from kingdom Protista is the presence/absence of nuclear membrane. Members of kingdom Monera do not have nuclear membrane and they are prokaryotes while the members of kingdom Protista have nuclear membrane and they are eukaryotes.
According to the three domain system of classification, how many of the kingdoms consist of only prokaryotic organisms?
1
2
3
4
As per the three domain system of classification, the kingdom Monera is divided into two domains and two kingdoms. Both of these consist of only prokaryotic organisms. The remaining one domain and four kingdoms consist of all eukaryotic organisms.
Considering the predominant mode of nutrition find the correct link between the protistan groups (1, 2, 3, 4 and 5) and the kingdoms (W, X and Y)
1.Chrysophytes, 2.Dinoflagellates, 3.Euglenoids, 4.Slime moulds, 5.Protozoans
W. Kingdom Plantae, X. Kingdom Animalia, Y. Kingdom Fungi
1,2,3 link to W; 5 to X and 4 to Y
1 link to W; 2,3 to X and 4,5 to Y
1 link to W;2,3,4 to X and 5 to Y
2,3 link to W;5 to X and 1,4 to Y
Autotrophic, heterotrophic and saprophytic modes of nutrition are predominantly found in the members of kingdoms Plantae, Animalia and Fungi respectively.
Kingdom Protista forms a connecting link with the other kingdoms.
Based on the mode of nutrition, Chrysophytes, Dinoflagellates and Euglenoids are predominantly photosynthetic. Hence, they form a link with the kingdom Plantae. Slime Moulds are predominantly saprophytic and form a link with kingdom Fungi. Protozoans are predominantly heterotrophic and form a link with the kingdom Animalia.
Zoological parks are the places where wild animals are kept in an unprotected environment.
The animals in zoological parks are under human care.
Zoological parks help to learn more about the food habits and behaviour of animals.
All animals are provided conditions similar to their natural habitats.
A specimen was having the following properties:
1. Nuclear membrane: present, 2. Cell wall: without cellulose, 3. Body organisation: loose tissue, 4. Mode of nutrition: Heterotrophic (saprophytic/parasitic)
Based on the above properties, the specimen is likely to belong to the __kingdom of Whittaker's classification.
Plantae
Animalia
Fungi
Protista
‘No individual is immortal.’ This statement is applicable to_____
All living eukaryotes and prokaryotes
All living organisms except viruses
All living unicellular prokaryotes
All living multicellular eukaryotes
No individual is immortal. This statement is applicable to all living multicellular organisms. But, in case of unicellular prokaryotes, the single cell divides and gives rise to two new individuals. Thus, the parent cell is not dead but it is transformed into a new progeny cell. Hence, "No individual is immortal" is not applicable to single celled organisms. In case of multicellular organisms, the parent organism dies and its cells do not form part of the cells of the progeny. Hence, the statement, ‘No individual is immortal’ is applicable to all multicellular living organisms. Viruses are not considered as truly living, hence they cannot be considered immortal.
The property which unambiguously (without exception)represents a particular character is known as a defining property. Which of the following is not such a property of living organisms?
Cellular organisation
Metabolism
In vitro metabolic reactions
Consciousness
Cellular organisation, consciousness and metabolism are the defining properties of all living organisms. An isolated metabolic reaction outside the body of an organism, performed in a test tube is neither living nor non-living. Hence, while metabolism is a defining feature of all living organisms without exception, isolated metabolic reactions in vitro are not living things but surely living reactions.
Select the correct statement:
The number and types of organisms present on earth is 1.7 -1.8 million
The process of scientific nomenclature or naming is followed by identification
The generic name and specific epithet in binomial nomenclature, when printed, are separately underlined
In taxonomy, characterisation, identification, classification and nomenclature are basic processes
Statement in option d is correct. The number and types of organisms present on earth is biodiversity. The number of species that are known and described range between 1.7 -1.8 million. So, the statement of option a is incorrect. Nomenclature or naming is possible only when the organism is described correctly, i.e. identification. So, identification is followed by nomenclature. Hence, option b statement is incorrect. The generic name and specific epithet in binomial nomenclature, when printed, are in italics. When handwritten, they are separately underlined. So, option c statement is incorrect.
Chordata in Homo sapiens and Angiospermae in Triticum aestivum represent.
Class and phylum respectively
Class and division respectively
Division and phylum respectively
Phylum and division respectively
Chordata is the phylum of Homo sapiens. Angiospermae is the division of Triticum aestivum. The category Phylum in animals is equivalent to the category Division in plants.
For the taxonomic study and reference of an extinct animal which of the following taxonomic aid will be most useful?
Herbarium
Zoological parks
Museum
Both (b) and (c)
Museum has collections of preserved plant and animal specimens for study and reference. Museums often have collections of skeletons of animals too. So, the taxonomic aid most useful for study and reference of an extinct animal is museum.
An organism was earlier classified as a member of kingdom Protista as per five kingdom classification was reclassified into kingdom Monera. Which of the following characters must be taken into consideration for reclassification?
Presence/absence of cell wall
Unicellular/multicellular
Autotrophic /heterotrophic
Presence /absence of nuclear membrane
The unicellular organisms can be in the kingdom Monera or Protista. The cell wall may be present in both Monera or Protista. Both Monera and Protista members show autotrophic or heterotrophic modes of nutrition. The only character among the given options that clearly differentiates kingdom Monera from kingdom Protista is the presence/absence of nuclear membrane. Members of kingdom Monera do not have nuclear membrane and they are prokaryotes while the members of kingdom Protista have nuclear membrane and they are eukaryotes.
According to the three domain system of classification, how many of the kingdoms consist of only prokaryotic organisms?
1
2
3
4
As per the three domain system of classification, the kingdom Monera is divided into two domains and two kingdoms. Both of these consist of only prokaryotic organisms. The remaining one domain and four kingdoms consist of all eukaryotic organisms.
Considering the predominant mode of nutrition find the correct link between the protistan groups (1, 2, 3, 4 and 5) and the kingdoms (W, X and Y)
1.Chrysophytes, 2.Dinoflagellates, 3.Euglenoids, 4.Slime moulds, 5.Protozoans
W. Kingdom Plantae, X. Kingdom Animalia, Y. Kingdom Fungi
1,2,3 link to W; 5 to X and 4 to Y
1 link to W; 2,3 to X and 4,5 to Y
1 link to W;2,3,4 to X and 5 to Y
2,3 link to W;5 to X and 1,4 to Y
Autotrophic, heterotrophic and saprophytic modes of nutrition are predominantly found in the members of kingdoms Plantae, Animalia and Fungi respectively.
Kingdom Protista forms a connecting link with the other kingdoms.
Based on the mode of nutrition, Chrysophytes, Dinoflagellates and Euglenoids are predominantly photosynthetic. Hence, they form a link with the kingdom Plantae. Slime Moulds are predominantly saprophytic and form a link with kingdom Fungi. Protozoans are predominantly heterotrophic and form a link with the kingdom Animalia.