Assertion (A): In single-celled organisms, we are not very clear about the usage of these two terms – growth and reproduction.
Reason (R): In unicellular organisms like bacteria, unicellular algae, or Amoeba, growth is synonymous with reproduction, i.e., an increase in the mass of cells.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Introduction & Growth as Criterion for Being Living (OLD NCERT) |
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Assertion(A): Classification helps in studying all living organisms.
Reason(R): It groups the organisms into convenient categories based on some easily observable characteristics.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason(R): It groups the organisms into convenient categories based on some easily observable characteristics.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Diversity in the Living World |
85%
From NCERT
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Assertion(A): All categories together constitute the taxonomic hierarchy.
Reason(R): Category is a part of the overall taxonomic arrangement.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason(R): Category is a part of the overall taxonomic arrangement.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Taxonomy 1: Nomenclature |
From NCERT
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Assertion (A): Reproduction cannot be an all-exclusive defining characteristic of living organisms but no nonliving object is capable of reproducing or replicating by itself.
Reason (R): All living organisms do not reproduce.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. Both (A) and (R) are false.
Reason (R): All living organisms do not reproduce.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Reproduction as Criterion for Being Living (OLD NCERT) |
67%
From NCERT
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Assertion (A): The life is interesting and most surprised phenomenon of nature.
Reason (R): It's reflected by ecological conflict and cooperation among members of a population and among populations of a community or even the molecular traffic inside a cell.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. Both (A) and (R) are false.
Reason (R): It's reflected by ecological conflict and cooperation among members of a population and among populations of a community or even the molecular traffic inside a cell.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Diversity in the Living World |
74%
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In the classification of plants, the taxonomic unit ‘Division’ is equivalent to which taxonomic unit in the classification of animals?
1. Order
2. Class
3. Phylum
4. Genus
1. Order
2. Class
3. Phylum
4. Genus
Subtopic: Taxonomy 2: Classification up to Genus |
91%
From NCERT
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Earth has amazing bio-diversity. The number of species on Earth that are known and described ranges between:
1. 0.8 - 1.0 million
2. 1.7 - 1.8 million
3. 7 – 8 million
4. 20 – 50 million
1. 0.8 - 1.0 million
2. 1.7 - 1.8 million
3. 7 – 8 million
4. 20 – 50 million
Subtopic: Diversity in the Living World |
90%
From NCERT
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Match each item in Column I with one in Column II regarding taxonomic categories of wheat and select the correct match from the codes given:
Codes:
| Column I | Column II | ||
| A | Family | P | Monocotyledonae |
| B | Order | Q | Poaceae |
| C | Class | R | Angiospermae |
| D | Division | S | Poales |
| A | B | C | D | |
| 1. | S | Q | R | P |
| 2. | S | Q | P | R |
| 3. | Q | S | P | R |
| 4. | Q | S | R | P |
Subtopic: Taxonomy 2: Classification up to Genus | Taxonomy 3: From Family to Classification of Some Organisms |
80%
From NCERT
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Living organisms can be characterised but not defined by:
| I. | Reproduction |
| II. | Growth |
| III. | Cellular organisation with metabolism |
| IV. | Consciousness |
1. Only I and II
2. Only III and IV
3. Only I and III
4. Only II and IV
Subtopic: Introduction & Growth as Criterion for Being Living (OLD NCERT) | Reproduction as Criterion for Being Living (OLD NCERT) |
88%
From NCERT
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Organisms belonging to the same Class in taxonomic hierarchy must also belong to the same:
1. Order
2. Family
3. Genus
4. Phylum
1. Order
2. Family
3. Genus
4. Phylum
Subtopic: Taxonomy 2: Classification up to Genus | Taxonomy 3: From Family to Classification of Some Organisms |
66%
From NCERT
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