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Worksheet: Biological Classification | Biology Class 11 - NEET PDF Download

Section A. Fill in the Blanks


Q1: The science of classifying living organisms is called _______________.

Q2: The highest category of classification is called _______________.

Q3: The five-kingdom classification system was proposed by _______________.

Q4: Bacteria that can live in extreme conditions are called _______________.

Q5: The process of classifying organisms based on their evolutionary history is known as _______________.

Section B. Match the Column


Match the following terms with their correct descriptions:

Worksheet: Biological Classification | Biology Class 11 - NEET

Section C. Multiple Choice Questions


Q1: Which of the following is not a characteristic of fungi?
(a) 
Autotrophic nutrition
(b) 
Non-motile
(c) 
Cell walls made of chitin
(d) 
Reproduction by spores

Q2: Which of the following is a prokaryotic organism?
(a) 
Fungi
(b) 
Bacteria
(c) 
Protista
(d) 
Plantae

Q3: The five-kingdom classification system is based on:
(a) 
Only habitat
(b) 
Both structure and habitat
(c) 
Only cell structure
(d) 
Only evolutionary history

Q4: Which kingdom includes organisms that lack a true nucleus?
(a) 
Animalia
(b) 
Plantae
c) 
Monera
(d) 
Protista

Q5: The process of photosynthesis occurs in which kingdom?
(a) 
Animalia
(b) 
Plantae
(c) 
Fungi
(d) 
Protista

Section D. Assertion Reasoning Questions


Q1: Assertion: Binomial nomenclature was introduced by Carolus Linnaeus.
Reason: Binomial nomenclature uses two names for naming organisms.
(a) 
Both Assertion and Reason are true, and the Reason is the correct explanation of the Assertion.
(b) 
Both Assertion and Reason are true, but the Reason is not the correct explanation of the Assertion.
(c) 
Assertion is true, but the Reason is false.
(d) 
Both Assertion and Reason are false.

Q2: Assertion: Bacteria and Archaea belong to the same kingdom in the five-kingdom classification system.
Reason: They share similar cell wall composition.
(a) Both Assertion and Reason are true, and the Reason is the correct explanation of the Assertion.
(b) Both Assertion and Reason are true, but the Reason is not the correct explanation of the Assertion.
(c) Assertion is true, but the Reason is false.
(d) Both Assertion and Reason are false.

Section E. Case Based Questions


Case 1: In a pond ecosystem, a student observed a small organism with a soft, segmented body and jointed appendages. The organism is found to be an excellent burrower in the mud. Identify the organism and explain its classification.

Case 2: A scientist discovered a new microorganism with a unique cell wall composition of peptidoglycan and the ability to perform photosynthesis. Explain how this microorganism should be classified in the five-kingdom classification system.

Section F. Short Answer Type


Q1: Explain the significance of the five-kingdom classification system in the field of biology.

Q2: Differentiate between homologous and analogous organs with examples.

Q3: Why are viruses not classified in any of the five kingdoms of the classification system?

Q4: What is phylogenetic classification, and how does it differ from the traditional five-kingdom classification?

Q5: Explain the concept of binomial nomenclature with an example.

Q6: Who introduced the five kingdom classification of organisms?

Q7: To which kingdom the multicellular decomposers belong?

Q8: Expand PPLO.

Q9: Give one example of a fungus as a soure of antibiotics?

Q10: How are viroids different from viruses?

Section G. Long Answer Type

Q1: Describe the characteristics of the Kingdom Fungi and explain the ecological significance of fungi in ecosystems.

Q2: Discuss the advantages and disadvantages of the three-domain system of classification as compared to the five-kingdom classification system.

Q3: Discuss the salient features of viruses with the help of diagram?

Q4: Write the distinct characters of fungi & explain using a diagram.

The document Worksheet: Biological Classification | Biology Class 11 - NEET is a part of the NEET Course Biology Class 11.
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FAQs on Worksheet: Biological Classification - Biology Class 11 - NEET

1. What is biological classification?
Ans. Biological classification is the scientific process of categorizing and organizing living organisms based on their similarities and differences. It involves arranging organisms into hierarchical groups or taxa, such as kingdom, phylum, class, order, family, genus, and species. This classification system helps in understanding the relationships between different organisms and aids in studying their characteristics, evolutionary history, and distribution.
2. Why is biological classification important?
Ans. Biological classification is important because it provides a structured and systematic approach to understanding the immense diversity of life on Earth. It helps in organizing and identifying species, facilitating the study of their characteristics and relationships. Classification also plays a crucial role in scientific research, conservation efforts, and understanding evolutionary patterns. Additionally, it allows scientists to communicate and share information effectively across different fields of biology.
3. What are the main criteria used for biological classification?
Ans. The main criteria used for biological classification are primarily based on evolutionary relationships and shared characteristics among organisms. These criteria include morphological features (such as body structure, shape, and size), anatomical traits, physiological functions, genetic information (DNA sequences), and ecological roles. Modern classification also incorporates molecular data, such as protein sequences and DNA analysis, to determine the relationships between organisms more accurately.
4. How are organisms classified into different kingdoms?
Ans. Organisms are classified into different kingdoms based on their fundamental characteristics and evolutionary relationships. Currently, the five main kingdoms are Animalia, Plantae, Fungi, Protista, and Monera. Animalia includes multicellular organisms that are heterotrophic and lack cell walls. Plantae comprises multicellular, autotrophic organisms with cell walls made of cellulose. Fungi consists of heterotrophic organisms with cell walls made of chitin. Protista includes mostly unicellular eukaryotic organisms. Monera consists of prokaryotic organisms, including bacteria and archaea.
5. How does biological classification relate to the NEET exam?
Ans. Biological classification is an essential topic in the NEET exam, which is the entrance examination for undergraduate medical and dental courses in India. The NEET syllabus includes the classification of organisms, the five-kingdom system, and the hierarchical classification system. Students are expected to have a thorough understanding of the principles and criteria used in biological classification. Questions related to classification, evolutionary relationships, and the characteristics of different taxa are often included in the NEET biology section.
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