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The Living World NEET Questions: Answer Key, pdf

The Living World is a fundamental subject matter in NEET, covering key principles consisting of characteristics of residing organisms, biological type, taxonomy, and nomenclature. NEET questions on this topic frequently consciousness on the hierarchy of category, the 5 kingdoms, binomial nomenclature, and the principles of biodiversity. These questions test students’ information of life procedures and their ability to differentiate among residing and non-living entities, making it essential for building a strong foundation in biology for NEET training.

  1. Introduction to The Living World NEET Questions
  2. Download: The Living World NEET Questions
  3. Characteristics of Living Organisms
  4. Diversity in the Living World
  5. Taxonomic Aids: The Living World
  6. Nomenclature: The Living World
  7. Biological Classification: The Living World
  8. Sample NEET Questions on The Living World
  9. Answer Key and Explanations: The Living World
  10. FAQs about The Living World NEET Questions

Introduction to The Living World NEET Questions

The Living World is a fundamental bankruptcy in NEET biology that makes a speciality of the traits of living organisms, their class, and the range of existence paperwork. NEET questions from this topic take a look at a scholar’s expertise of ideas just like the hierarchy of biological type, nomenclature, and biodiversity. By gaining knowledge of this chapter, college students can build a robust foundation for in addition research in botany and zoology. NEET questions often contain distinguishing among residing and non-residing, taxonomical aids, and the significance of organic classifications. Understanding key concepts and solving multiple questions related to “The Living World” is important for fulfillment inside the NEET exam, as it helps students advantage readability on biological standards and their actual-international applications.

The Living World Neet Questions

Importance in NEET Biology

  • Foundation for Further Study: A strong understanding of the Living World is essential for comprehending other biological concepts like cell biology, genetics, ecology, and anatomy.
  • Diversity of Life: This topic introduces you to the vast variety of organisms, from microscopic bacteria to complex mammals.
  • Classification Systems: Learning about classification systems helps you prepare and understand the relationships between different species.
  • Biological Terms: Understanding the terminology associated with the Living World is crucial for effective communication in biology.

Download: The Living World NEET Questions

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Characteristics of Living Organisms

Characteristic Description Examples
Cellular Organization Living organisms are made up of cells, the basic units of life. Animals, plants, bacteria
Metabolism The process of converting energy from food into usable forms. Digestion, respiration
Growth and Development Living organisms grow and develop over time. A seed germinating into a plant, a child growing into an adult
Reproduction The ability to produce offspring. Sexual reproduction in animals, asexual reproduction in bacteria
Heredity The passing of genetic information from one generation to the next. Inheritance of traits from parents to children
Response to Stimuli The ability to react to changes in the environment. Plants bending towards sunlight, animals running away from predators
Homeostasis The maintenance of a stable internal environment. Regulation of body temperature, blood sugar levels

Biological Classification

Domain Kingdom Phylum Class Order Family Genus Species
Bacteria Animalia Chordata Mammalia Carnivora Felidae Felis Homo sapiens
Archaea Plantae Arthropoda Aves Primates Canidae Canis Felis domesticus
Eukarya Fungi — — — — — —

Essential Processes

Process Description Examples
Nutrition The process of obtaining food and nutrients. Ingestion, digestion, absorption
Respiration The process of obtaining oxygen and releasing carbon dioxide. Cellular respiration, breathing
Transport The movement of substances within and between cells. Blood circulation, diffusion
Excretion The removal of waste products from the body. Urination, sweating
Growth The increase in size and mass of an organism. Cell division, protein synthesis
Reproduction The production of offspring. Sexual reproduction, asexual reproduction
Response to Stimuli The ability to react to changes in the environment. Taxis, tropism
Homeostasis The maintenance of a stable internal environment. Thermoregulation, osmoregulation

Diversity in the Living World

Systematics and Taxonomy

  • Systematics: The study of the diversity of organisms and their relationships.
  • Taxonomy: The classification of organisms based on their shared traits.

Major Taxonomic Categories

  • Domain: The highest level of classification.
  • Bacteria, Archaea, Eukarya
  • Kingdom: The second highest level of classification.
  • Animalia, Plantae, Fungi, Protista, Monera
  • Phylum: A group of organisms with similar body plans.
  • Chordata, Arthropoda
  • Class: A group of organisms within a phylum with similar traits.
  • Mammalia, Aves
  • Order: A group of organisms within a class with similar traits.
  • Carnivora, Primates
  • Family: A group of organisms within an order with similar traits.
  • Felidae, Canidae
  • Genus: A group of closely related organisms.
  • Felis, Canis
  • Species: A group of organisms that can interbreed and produce fertile offspring.

Homo sapiens, Felis domesticus

Concept of Species and Classification Hierarchies

  • Species: The primary unit of classification, representing a collection of organisms that can interbreed and produce fertile offspring.
  • Classification Hierarchies: The arrangement of taxonomic classes in a hierarchical order, from domain to species.

Importance of Classification:

  • Helps in understanding the relationships between different organisms.
  • Provides a framework for organizing and interpreting biological diversity.
  • Facilitates communication and studies in biology.

Taxonomic Aids: The Living World

Taxonomic Aid Description Purpose
Herbarium A collection of dried, pressed plants, mounted on sheets, and arranged according to a classification system. Preserving plant specimens for future study and reference.
Botanical Garden A cultivated area where plants from different parts of the world are grown and displayed. Conserving plant diversity, conducting research, and educating the public.
Museum A collection of artifacts, specimens, and other objects related to a particular subject. Preserving and displaying specimens for research and education.
Zoological Park A facility where animals are kept in enclosures for public viewing and education. Conserving wildlife, conducting research, and educating the public.
Taxonomic Key A tool used for identifying organisms based on their characteristics. Helping scientists and students to identify unknown organisms.
Taxonomic Manual A comprehensive reference book that provides information on the classification and characteristics of a particular group of organisms. Assisting in the identification and study of organisms.

Nomenclature: The Living World

Binomial Nomenclature

Introduction: Binomial nomenclature is a system of naming organisms that uses a two-part phrase, including the genus name followed by the species name. This system was introduced by Carl Linnaeus.

Example: Homo sapiens (human), Felis domesticus (cat)

Rules of Nomenclature

The International Code of Botanical Nomenclature (ICBN) and the International Code of Zoological Nomenclature (ICZN) govern the rules for naming plants and animals, respectively. Some key rules include:

  • Latinization: Names must be Latinized or Latin-derived.
  • Uniqueness: Each species must have a unique name.
  • Priority: The earliest published name for a species has precedence.
  • Author Citation: The name of the individual who first defined and published the species is often cited.
  • Typification: A type specimen is designated to represent the species.

Additional Rules:

  • Capitalization: The genus name is always capitalized, while the species name is lowercase.
  • Italicization: The binomial name is usually italicized or underlined.
  • Abbreviations: The genus name may be abbreviated after the first use in a text.

Biological Classification: The Living World

Evolutionary Trends in Classification

Classification System Key Features
Two-Kingdom System (Linnaeus) Divided organisms into Animalia (animals) and Plantae (plants).
Three-Kingdom System (Haeckel) Added a third kingdom, Protista, for organisms that didn’t fit neatly into the other two.
Four-Kingdom System (Whittaker) Introduced the kingdom Fungi for organisms that obtain nutrients by absorption.
Five-Kingdom System (Whittaker) Divided Protista into four kingdoms: Monera, Protista, Fungi, Plantae, and Animalia.

Basics of Kingdom Systems

Kingdom Characteristics Examples
Monera Unicellular prokaryotes, lack a nucleus and membrane-bound organelles. Bacteria, archaea
Protista Mostly unicellular eukaryotes, diverse group with varying characteristics. Amoeba, paramecium, euglena
Fungi Multicellular eukaryotes, heterotrophs that obtain nutrients by absorption. Mushrooms, molds, yeasts
Plantae Multicellular eukaryotes, autotrophs that produce their own food through photosynthesis. Plants, algae
Animalia Multicellular eukaryotes, heterotrophs that obtain nutrients by ingestion. Animals

Domain and Recent Taxonomic Systems

Domain: The maximum degree of classification, delivered by way of Carl Woese.

  • Bacteria
  • Archaea
  • Eukarya

Recent Taxonomic Systems:

  • Cladistics: A approach of classification primarily based on evolutionary relationships.
  • Phylogenetic Trees: Diagrams that display the evolutionary relationships among organisms.
  • Molecular Phylogeny: Using DNA and RNA sequences to decide evolutionary relationships.

Sample NEET Questions on The Living World

Single Choice Questions (MCQs)

Question Answer Options Correct Answer
Which of the following is not a characteristic of living organisms? A. Metabolism B. Growth C. Reproduction D. Abiogenesis D
The basic unit of classification is: A. Kingdom B. Species C. Genus D. Phylum B
Which kingdom includes organisms that are multicellular, heterotrophic, and lack cell walls? A. Plantae B. Fungi C. Animalia D. Protista C
The system of naming organisms using a two-word name is called: A. Binomial nomenclature B. Taxonomy C. Systematics D. Classification A

Assertion-Reason Questions

Assertion Reason
All living organisms are made up of cells. Cells are the basic units of life.
The kingdom Monera includes unicellular prokaryotes. Prokaryotes lack a nucleus and membrane-bound organelles.

Answer Key and Explanations: The Living World

Diagram-Based Questions

Plant Cell Diagram:

  • Labeled Parts: Cell wall, plasma membrane, cytoplasm, nucleus, nucleolus, endoplasmic reticulum, Golgi apparatus, ribosomes, mitochondria, chloroplasts, vacuole.

Functions:

  • Cell wall: Provides structural support and safety.
  • Plasma membrane: Controls the motion of materials into and out of the cell.
  • Cytoplasm: A gel-like substance that fills the cell and incorporates various organelles.
  • Nucleus: Controls the cell’s activities and contains the genetic material.
  • Nucleolus: Involved in the production of ribosomes.
  • Endoplasmic reticulum: Synthesizes proteins and lipids.
  • Golgi apparatus: Modifies, sorts, and packages proteins and lipids.
  • Ribosomes: Sites of protein synthesis.
  • Mitochondria: The “powerhouse of the cell,” responsible for cellular respiration.
  • Chloroplasts: Sites of photosynthesis in plant cells.
  • Vacuole: A large organelle that stores water, waste products, and other materials.

Phylogenetic Tree:

  • Interpretation: The phylogenetic tree suggests the evolutionary relationships between the organisms. The closer organisms are on the tree, the more closely related they are.
  • Most Recent Common Ancestor: The node where two or more branches diverge represents the most recent common ancestor of those organisms.

Common Mistakes and Tips

  • Confusing Taxonomic Categories: Be sure to recognize the differences among the various taxonomic categories, including kingdom, phylum, class, order, family, genus, and species.
  • Memorizing Facts: Avoid rote memorization. Focus on understanding the ideas and relationships among different organisms.
  • Practicing with Diagrams: Familiarize yourself with the structures of different cells and organisms.
  • Reviewing Key Terms: Make sure you understand the definitions of key terms like systematics, taxonomy, binomial nomenclature, and phylogenetic trees.
  • Staying Updated: Keep up with the latest trends in biological classification and evolutionary theory.

FAQs about The Living World NEET Questions

Q1: What topics are included below “The Living World” for NEET?

A1: Topics include characteristics of residing organisms, taxonomy, classification systems, nomenclature, biodiversity, and taxonomic aids.

Q2: How many questions are usually asked from “The Living World” in NEET?

A2: Typically, 1-2 questions are asked from this chapter.

Q3: Is “The Living World” a vital chapter for NEET?

A3: Yes, it forms the foundation for biology, particularly in taxonomy and biodiversity.

Q4: What is the weightage of “The Living World” in NEET?

A4: It includes a weightage of around 2-4 marks in the NEET exam.

Q5: What are key ideas to focus on for NEET in “The Living World”?

A5: Focus on taxonomy, nomenclature regulations, hierarchy of classification, and examples of taxonomic classes.

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