Important Questions for Class 11 Biology 1st Chapter Diversity in the Living World MCQ, Very Short, Short Type, Long Type
CBSE Class 11 Important Questions for Class 11 Biology Chapter 1 Diversity in the Living World all MCQ Type, Very Short Type, Assertion Reason Type, Case Study, Short Type and Long Type Questions with Answers by Expert. Important Questions for Section A, B, C, D Class 11 Biology Chapter 1.
- MCQ’s
Q.1) Scientific name of organism is derived from ___________ language.
a) English
b) Latin
c) Greek
d) Chinese
Q.2) Systematics is defined as
a) study of classification of the organism
b)the study of diversity among organisms
c) the study of identifying organisms
d) All the above
Q.3) The most fundamental and basic level of taxon is
a) Species
b) Genus
c) Family
d) Order
Q.4) Taxonomic categories showing hierarchical arrangement in ascending order
a) species, genus, family, order, class, phylum, kingdom
b) kingdom, phylum, class, order, family, genus, species.
c)kingdom, phylum, class, order, family, genus, species.
d)species, genus, family, class, order, phylum, kingdom
Q.5) All organisms are ‘aware’ of their surroundings due to the property of
a) Metabolism
b) Consciousness
c) Reproduction
d) Growth
Q.6) Metabolism is the
a.)The production of progeny possessing features more or less similar to those of parents
b.) response to external stimulus
c.)sum of all chemical reaction taking in the body.
d.)All of the above
Q.7) The highest level or taxon of classification in living organism is
a) Family
b) Species
c) Kingdom
d) Genus
Q.8) Linnaeus devised a nomenclature system known as
a) monomial
b) binomial
c) trinomial
d) polynomial
Q.9) The number of similar features increases as we progress from species to kingdom in a taxonomic hierarchy
a.) remain constant
b.) increases
c.) decreases
d.) is not affected by similar features
- Answer in one sentence
Q.1) Give examples of famous botanical gardens?
Ans. Some of the famous botanical gardens are at located at Kew (England), Indian Botanical Garden, Howrah (India) and at National Botanical Research Institute, Lucknow (India).
Q.2) What is classification?
Ans. Classification is the practice of grouping things into useful categories based on generally observable traits.
Plants, animals, dogs, cats, and insects, for example, are easily identifiable groups.
Q.3) What is biodiversity?
Ans. Biodiversity is the various types of species present on earth. It includes number of species which are known and described range of these species is between 1.7-1.8 million.
Q.4) What is a couplet?
Ans. The keys are based on a pair of opposite characters known as a couplet. It indicates a decision between two opposing alternatives.
Q.5) What is lead?
Ans. A lead is the name given to each statement in the key.
Q.6) Define: Family
Ans. In comparison to genus and species, a family consists of a set of related genera with fewer similarities. For Plant species vegetative and reproductive characteristics are used to classify them into families.
- Answer in short
Q.1) State the characters necessary for organisms to be called living?
Ans. 1.) All living things have the ability to grow.
2.) The defining trait of living forms is the cellular organization of the organism.
3.) Consciousness is also a characteristic of living beings.
4.) Metabolism is another aspect of life.
5.) Living organisms, like all other living things, have the ability to reproduce.
Q.2) What are the two components of scientific name in binomial nomenclature?
Ans. a.)The binomial nomenclature given by Carolus Linnaeus is the universally recognized method for giving scientific names to organisms.
b.) Each scientific name is made up of 2 parts – theGeneric name and the specific epithet hence it is called the Binomial nomenclature.
c.) for example the scientific name of mango is writtenas Mangifera indica. In this Mangifera is the genus and indica is species, or specific epithet.
Q.3) Give the rules for using an organism’s name from the binomial nomenclature.
Ans. the following should be kept in mind while using the scientific name of an organism
- Biological names are derived from Latin and are written in italics.
- The scientific name is the genus while the second component is the specific epithet.
- When hand written, the biological nameis separately underlined, and printed in italics to indicate their Latin origin.
- The first letter of genus is written in capital letter and the specific epithet starts with a small letter.
- The authors name appears after the specific epithetand is written in an abbreviated form, e.g., Mangiferaindica Linn. Here Linnaeus was the first to describe the species is given as Linn.
Q.4) Define: taxon. What is meant by taxonomic hierarchy?
Ans. 1.) A taxon can be any level of grouping in organisms.
2.) Classification is a method that consists of several steps, each of which represents a rank or category.
3.) This category is known as the taxonomic category because it is a part of the general taxonomic arrangement, and all categories combined make up the taxonomic hierarchy.
Q.5) How to place an organism in various categories during classification?
Ans.1) The understanding of the characteristics of an individual or a group of organisms is the most basic necessity to classify an organism.
2) This aids in the identification of similarities and differences between individuals of the same species as well as individuals of different species.
- Answer in brief
Q.1) State the different types of artificial aids created for classification?
Ans. 1.) Herbarium: it is a store house of collected plant specimens that are dried, pressed and preserved on sheets based on a universally accepted system of classification. These specimens and its descriptions are used for further studies and are quick referral systems in taxonomical studies.
2.) Botanical Gardens: These gardens have collections of living plants for reference to study plants. Plant species in botanical gardens are grown for identification purposes and
each plant is labelled indicating its botanical/scientific name and its family.
3.) Biological museums: These are set up in educational institutes suchas schools and colleges. Museums have collections of preserved plant and animal. Insects can also be preserved in insect boxes after collecting, killing and pinning. Larger animals like birds, mammals are usually stuffed and preserved. Skeletons are also preserved in museums.
4.) Zoos: Zoos are places where wild animals are kept in protected environments
under human care. All animals in a zoo are provided with similar natural habitats.
Q.2) What is nomenclature and identification? Why is it important?
Ans. 1.) The earth is home to millions of plants and animals, which we know by their local names.
2.) Even within the same country, these regional names would differ from one another.
3.) This would result in confusion if we didn’t figure out how to communicate with one another and refer to the species we’re talking about.
4.) As a result, standardizing the naming of living creatures is required so that they are known by the same name all over the world. This is known as nomenclature.
5.) As a result, nomenclature or naming is only possible if the organism is properly characterized and we know which organism the name refers to. This is called identification.
Q.3) What is the use of Flora, manuals, monographs and catalogues in biology?
Ans. 1.) Recording descriptions of living organisms is carried with flora, manuals, monographs, and catalogues.
2.) They also aid in proper identification of living organisms.
3.) Flora is a detailed account of the habitat and distribution of plants in a given area. These serve as an index to the plant species found in a given area.
4.) Manuals are useful for providing information for identifying the names of species found in a particular area.
5.) Monographs are collections of information on a single taxon.