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NEET Biology · Cell: The Unit of Life · Set 2 (Q31-60)

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  1. 31.
    A major site for synthesis of lipids is:
    1. (1)Nucleoplasm
    2. (2)RER
    3. (3)SER
    4. (4)Symplast
  2. 32.
    Which of the following pair of organelles does not contain DNA?
    1. (1)Mitochondria and Lysosomes
    2. (2)Chloroplast and Vacuoles
    3. (3)Lysosomes and Vacuoles
    4. (4)Nuclear envelope and Mitochondria
  3. 33.
    Which one of the following is not considered as a part of the endomembrane system?
    1. (1)Lysosome
    2. (2)Golgi complex
    3. (3)Peroxisome
    4. (4)Vacuole
  4. 34.
    An elaborate network of filamentous proteinaceous structures present in the cytoplasm which helps in the maintenance of cell shape is called :
    1. (1)Endosplasmic Reticulum
    2. (2)Plasmalemma
    3. (3)Cytoskeleton
    4. (4)Thylakoid
  5. 35.
    Which of the following structures is not found in a prokaryotic cell?
    1. (1)Ribosome
    2. (2)Mesosome
    3. (3)Plasma membrane
    4. (4)Nuclear envelope
  6. 36.
    Which one of the following has its own DNA?
    1. (1)Mitochondria
    2. (2)Dictyosome
    3. (3)Lysosome
    4. (4)Peroxisome
  7. 37.
    Which one of the following structures is an organelle within an organelle?
    1. (1)ER
    2. (2)Mesosome
    3. (3)Ribosome
    4. (4)Peroxisome
  8. 38.
    Which one of the following organisms is not an example of eukaryotic cells?
    1. (1)Escherichia coli
    2. (2)Euglena viridis
    3. (3)Amoeba proteus
    4. (4)Paramecium caudatum
  9. 39.
    The structures that are formed by stacking of organized flattened membranous sacs in the chloroplasts are :
    1. (1)Grana
    2. (2)Stroma lamellae
    3. (3)Stroma
    4. (4)Cristae
  10. 40.
    Which of the following cell organelles is present in the highest number in secretory cells?
    1. (1)Mitochondria
    2. (2)Golgi complex
    3. (3)Endoplasmic reticulum
    4. (4)Lysosomes
  11. 41.
    The chromosomes in which the centromere is situated close to one end are
    1. (1)Metacentric
    2. (2)Acrocentric
    3. (3)Telocentric
    4. (4)Sub-metacentric
  12. 42.
    Cellular organelles with membranes are :
    1. (1)Lysosomes, Golgi apparatus and mitochondria
    2. (2)Nuclei, ribosomes and mitochondria
    3. (3)Chromosomes, ribosomes and endoplasmic reticulum
    4. (4)Endoplasmic reticulum, ribosomes and nuclei
  13. 43.
    Match the following and select the correct answer:
    (A) Centriole (1) Infoldings in mitochondria
    (B) Chlorophyll (2) Thylakoids
    (C) Cristae (3) Nucleic acids
    (D) Ribozymes (4) Basal body cilia or flagella
    1. (1)A : 4, B : 2, C : 1, D : 3
    2. (2)A : 1, B : 2, C : 4, D : 3
    3. (3)A : 1, B : 3, C : 2, D : 4
    4. (4)A : 4, B : 3, C : 1, D : 2
  14. 44.
    Which of the following cell organelles is responsible for extracting energy from carbohydrates to form ATP?
    1. (1)Ribosome
    2. (2)Chloroplast
    3. (3)Mitochondrion
    4. (4)Lysosome
  15. 45.
    In germinating seeds, fatty acids are degraded exclusively in the:-
    1. (1)Peroxisomes
    2. (2)Mitochondria
    3. (3)Proplastids
    4. (4)Glyoxysomes
  16. 46.
    Which of the following statements regarding cilia is not correct?
    1. (1)Cilia contain an outer of nine doublet microtubules surrounding two single microtubules.
    2. (2)The organized beating of cilia is controlled by fluxes of across the membrane.
    3. (3)Cilia are hair-like cellular appendages.
    4. (4)Microtubules of cilia are composed of tubulin.
  17. 47.
    The main arena of various types of activities of a cell is
    1. (1)Plasma membrane
    2. (2)Mitochondrion
    3. (3)Cytoplasm
    4. (4)Nucleus
  18. 48.
    The concept of " Omnis cellula-e cellula" regarding cell division was first proposed by:
    1. (1)Rudolf Virchow
    2. (2)Theodore Schwann
    3. (3)Schleiden
    4. (4)Aristotle
  19. 49.
    Which of the following is true for nucleolus?
    1. (1)Larger nucleoli are present in dividing cells.
    2. (2)It is a membrane-bound structure.
    3. (3)It takes part in spindle formation.
    4. (4)It is a site for active ribosomal RNA synthesis.
  20. 50.
    The chromosomes in which centromere is situated close to one end are:
    1. (1)Acrocentric
    2. (2)Telocentric
    3. (3)Sub-metacentric
    4. (4)Metacentric
  21. 51.
    Mitochondria and chloroplast are:
    (i) Semi-autonomous organelles.
    (ii) Formed by division of pre-existing organelles and they contain DNA but lack protein
    synthesizing machinery.
    Which one of the following options is correct?
    1. (1)Both (i) and (ii) are correct
    2. (2)(ii) is true and (i) is false
    3. (3)(i) is true and (ii) is false
    4. (4)Both (i) and (ii) are false
  22. 52.
    Peptide synthesis inside a cell takes place in
    1. (1)Mitochondria
    2. (2)Chromoplast
    3. (3)Ribosomes
    4. (4)Chloroplast
  23. 53.
    Match the columns.
    1. (1)a–v, b–iii, c–i, d–iv, e–ii
    2. (2)a–v, b–iii, c–ii, d–iv, e–i
    3. (3)a–ii, b–iii, c–i, d–iv, e–v
    4. (4)a–iii, b–v, c–i, d–iv, e–ii
  24. 54.
    If the pH in lysosomes is increased to alkaline, what will be the outcome?
    1. (1)Hydrolytic enzymes will function more efficiently
    2. (2)Hydrolytic enzymes will become inactive
    3. (3)Lysosomal enzymes will be released into the cytoplasm
    4. (4)Lysosomal enzymes will be more active
  25. 55.
    The solid linear cytosketetal elements having a diameter of 6 nm and made up of a single type
    of monomer are known as
    1. (1)Microtubules
    2. (2)Microfilaments
    3. (3)Intermediate filaments
    4. (4)Lamins
  26. 56.
    A cell organelle containing hydrolytic enzymes is:-
    1. (1)Ribosome
    2. (2)Mesosome
    3. (3)Lysosome
    4. (4)Microsome
  27. 57.
    A complex of ribosome attached to a single strand of RNA is known as:
    1. (1)Polysome
    2. (2)Polymer
    3. (3)Polypeptide
    4. (4)Okazaki fragment
  28. 58.
    Select the correct statement from the following regarding cell membrane.
    1. (1) and ions move across cell membrane by passive transport.
    2. (2)Proteins make up 60 to 70 per cent of the cell membrane.
    3. (3)Lipids are arranged in a bilayer with polar heads towards the inner part.
    4. (4)Fluid mosaic model of cell membrane was proposed by Singer and Nicolson.
  29. 59.
    Keeping in view the "fluid mosaic model" for the structure of cell membrane, which one of the following statements is correct with respect to the movement of lipids and proteins from one lipid monolayer to the other (described as flipflop movement)?
    1. (1)While proteins can flip-flop, lipids can not
    2. (2)Neither lipids, nor proteins can flip-flop
    3. (3)Both lipids and proteins can flip-flop
    4. (4)While lipids can rarely flip–flop, proteins can not
  30. 60.
    Select the wrong statement from the following :
    1. (1)The chloroplasts are generally much larger than mitochondria
    2. (2)Both chloroplasts and mitochondria contain an inner and an outer membrane
    3. (3)Both chloroplasts and mitochondria have an internal compartment, the thylakoid space bounded by the thylakoid membrane
    4. (4)Both chloroplasts and mitochondria contain DNA