Biological Classification - NEET - Vr Education

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Biological Classification - NEET - Vr Education - Quiz

Each correct answer have 4 Marks Each wrong answers have -1 Mark Time - 15 Minutes ( 15 Questions )

Questions and Answers
  • 1. 

    A system of classification in which a large number of traits are considered l, is

    • A.

      Artificial system

    • B.

      Synthetic system 

    • C.

      Natural system

    • D.

      Phylogenetic system

    Correct Answer
    C. Natural system
    Explanation
    A natural system of classification is based on the natural relationships and evolutionary history of organisms. It considers a large number of traits and characteristics to group organisms together. This approach aims to reflect the true relationships between species and their shared ancestry. It takes into account various factors such as morphology, genetics, behavior, and ecological roles. By considering a wide range of traits, a natural system provides a more comprehensive understanding of the relationships between different organisms.

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  • 2. 

    Phylogenetic classification is based on 

    • A.

      Utilitarian system

    • B.

      Habits

    • C.

      Overall similarities

    • D.

      Common evolutionary descent

    Correct Answer
    D. Common evolutionary descent
    Explanation
    Phylogenetic classification is based on common evolutionary descent. This means that organisms are grouped together based on their shared ancestry and evolutionary history. It is believed that species that share a more recent common ancestor will have more similarities in their genetic makeup and physical characteristics. By studying these similarities, scientists can determine the relationships and evolutionary connections between different species. This classification system helps to understand the evolutionary relationships and patterns of biodiversity on Earth.

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  • 3. 

    Archaebacteria differ from eubacteria in: 

    • A.

      Cell membrane 

    • B.

      Mode of nutrition 

    • C.

      Cell shape

    • D.

      Mode of reproduction 

    Correct Answer
    A. Cell membrane 
    Explanation
    Archaebacteria differ from eubacteria in their cell membrane structure. Archaebacteria have a unique cell membrane composition that is different from eubacteria. This difference in cell membrane allows archaebacteria to survive in extreme environments such as hot springs, salt flats, and deep-sea hydrothermal vents. Eubacteria, on the other hand, have a cell membrane structure similar to other bacteria and can be found in a wide range of environments.

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  • 4. 

    The motile bacteria are able to move by: 

    • A.

      Fimbriae 

    • B.

      Flagella

    • C.

      Cilia 

    • D.

      Pili

    Correct Answer
    B. Flagella
    Explanation
    Flagella are long, whip-like appendages that protrude from the surface of bacteria. They are responsible for the movement of bacteria. The rotation of the flagella propels the bacteria forward, allowing them to move towards or away from certain stimuli. Fimbriae, pili, and cilia are also structures found in bacteria, but they serve different functions such as attachment to surfaces or the transfer of genetic material. Therefore, flagella are specifically responsible for the motility of bacteria.

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  • 5. 

    The cynobacteria are also referred to as 

    • A.

      Protists 

    • B.

      Golden algae 

    • C.

      Slime moulds 

    • D.

      Blue green algae 

    Correct Answer
    D. Blue green algae 
    Explanation
    Cyanobacteria are often referred to as blue-green algae because they possess characteristics of both bacteria and algae. They are prokaryotic organisms that can perform photosynthesis, similar to algae. However, they lack a true nucleus and other membrane-bound organelles, which are characteristics of bacteria. The term "blue-green" refers to their pigmentation, as they often have a bluish or greenish color due to the presence of pigments such as chlorophyll.

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  • 6. 

    Which bacteria is utilized in gober gas plant?

    • A.

      Methanogens 

    • B.

      Nitrifying bacteria 

    • C.

      Ammonifying bacteria 

    • D.

      Denitrifying bacteria 

    Correct Answer
    A. Methanogens 
    Explanation
    Methanogens are bacteria that are utilized in gober gas plants. They are responsible for the production of methane gas through the process of anaerobic digestion. Methanogens are able to break down organic matter in the absence of oxygen, converting it into methane and carbon dioxide. This methane gas can then be used as a source of energy in gober gas plants.

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  • 7. 

    Photosynthetic bacteria have pigments in,

    • A.

      Leucoplasts

    • B.

      Chloroplasts

    • C.

      Chromoplasts

    • D.

      Chromatophores

    Correct Answer
    D. Chromatophores
    Explanation
    Chromatophores are specialized structures found in photosynthetic bacteria that contain pigments. These pigments are responsible for capturing light energy and converting it into chemical energy through the process of photosynthesis. Unlike other types of plastids like leucoplasts, chloroplasts, and chromoplasts, chromatophores are specifically adapted for photosynthesis and are able to adjust their pigmentation to optimize light absorption. Therefore, the presence of pigments in chromatophores is a characteristic feature of photosynthetic bacteria.

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  • 8. 

    Nitrogen fixer soil organisms belong to

    • A.

      Mosses

    • B.

      Bacteria 

    • C.

      Green algae

    • D.

      Soil fungi

    Correct Answer
    B. Bacteria 
    Explanation
    Nitrogen fixer soil organisms belong to bacteria. Bacteria have the ability to convert atmospheric nitrogen into a usable form, such as ammonia. This process, known as nitrogen fixation, is crucial for the nitrogen cycle and the availability of nitrogen for plant growth. While other organisms like mosses, green algae, and soil fungi play important roles in soil ecosystems, bacteria are specifically known for their nitrogen-fixing abilities.

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  • 9. 

    Single celled eukaryotes are included in: 

    • A.

      Protista 

    • B.

      Fungi

    • C.

      Archaea

    • D.

      Monera

    Correct Answer
    A. Protista 
    Explanation
    Single celled eukaryotes are included in the Protista kingdom. This kingdom consists of various organisms that are eukaryotic and mostly unicellular. They exhibit a wide range of characteristics and can be found in various habitats such as water, soil, and even within other organisms. Examples of single celled eukaryotes in the Protista kingdom include amoebas, paramecia, and euglenas.

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  • 10. 

    The vector for sleeping sickness is, 

    • A.

      House fly

    • B.

      Tse-Tse fly

    • C.

      Sand fly

    • D.

      Fruit fly 

    Correct Answer
    B. Tse-Tse fly
    Explanation
    Tse-Tse flies are the vectors for sleeping sickness. Sleeping sickness, also known as African trypanosomiasis, is caused by a parasite called Trypanosoma brucei. Tse-Tse flies become infected with the parasite when they bite an infected human or animal. The parasites multiply in the fly's gut and salivary glands. When the infected fly bites another human or animal, it transmits the parasite through its saliva, causing sleeping sickness. Tse-Tse flies are mainly found in sub-Saharan Africa and are responsible for the transmission of this disease to humans and animals in the region.

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  • 11. 

    The nucleus is absent in: 

    • A.

      Mucor 

    • B.

      Vaucheira

    • C.

      Volvox

    • D.

      Anabaena 

    Correct Answer
    D. Anabaena 
    Explanation
    Anabaena is a type of cyanobacteria that lacks a true nucleus. Cyanobacteria are prokaryotic organisms, meaning they do not have a membrane-bound nucleus like eukaryotic organisms. Instead, their genetic material is located in a region called the nucleoid, which is not enclosed by a membrane. This allows for efficient gene expression and adaptation to various environments.

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  • 12. 

    In fungi stored food material is

    • A.

      Glycogen

    • B.

      Starch

    • C.

      Sucrose

    • D.

      Glucose 

    Correct Answer
    A. Glycogen
    Explanation
    Glycogen is the correct answer because it is the main storage form of glucose in fungi. Similar to animals, fungi store excess glucose as glycogen for energy reserves. This polysaccharide is stored in the cytoplasm and can be broken down into glucose when needed for energy production. Starch is the main storage carbohydrate in plants, while sucrose is a disaccharide composed of glucose and fructose. Glucose is a monosaccharide and is not typically stored as a reserve in fungi.

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  • 13. 

    Cauliflower mosaic virus contains

    • A.

      Ss RNA

    • B.

      Ds RNA

    • C.

      Ds DNA

    • D.

      Ss DNA

    Correct Answer
    C. Ds DNA
    Explanation
    Cauliflower mosaic virus contains ds DNA, which stands for double-stranded DNA. This means that the genetic material of the virus consists of two complementary strands of DNA that are joined together. This is different from ss DNA, which stands for single-stranded DNA, where there is only one strand of DNA present. Similarly, ss RNA refers to single-stranded RNA, and ds RNA refers to double-stranded RNA. However, in the case of cauliflower mosaic virus, the correct answer is ds DNA.

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  • 14. 

    Enzymes are absent in 

    • A.

      Cyanobacteria

    • B.

      Viruses

    • C.

      Algae

    • D.

      Fungi

    Correct Answer
    B. Viruses
    Explanation
    Enzymes are absent in viruses because viruses are not considered living organisms. Unlike bacteria, algae, and fungi, viruses do not have cells and cannot carry out metabolic processes on their own. They rely on host cells to replicate and carry out their life cycle. Therefore, they do not possess enzymes, which are essential for catalyzing biochemical reactions and metabolic processes in living organisms.

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  • 15. 

    Most of the Lichens consist of

    • A.

      Blue-green algae and basidomycetes

    • B.

      Blue-green algae and ascomycetes 

    • C.

      Red algae and ascomycetes

    • D.

      Brown algae and phycomycetes 

    Correct Answer
    B. Blue-green algae and ascomycetes 
    Explanation
    Lichens are symbiotic organisms composed of a fungus (ascomycetes) and a photosynthetic partner, usually blue-green algae (cyanobacteria). The algae provide the lichen with food through photosynthesis, while the fungus provides a protective environment and absorbs nutrients from the surroundings. This mutualistic relationship allows lichens to survive in harsh environments and play important roles in soil formation and ecological processes. Therefore, the correct answer is "Blue-green algae and ascomycetes".

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  • Current Version
  • Jan 20, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • May 13, 2020
    Quiz Created by
    VR EduTech

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