Cell The Unit Of Life Class 11 Questions And Answers
The students who are targeting for NEET exam should prepare for all the important chapters of NEET syllabus to secure good marks in NEET 2022. Candidates planning to appear in the medical exam must have knowledge about the weightage of chapters. Biology section carries the maximum weightage.
Cell The Unit Of Life Class 11 is the eighth chapter categorized under the unit 'Structure And Functions'. According to the NEET chapterwise weightage Cell the unit of life class 11 contributes to around 4% of the total number of questions asked in the last years. On average we can expect 3-4 questions from this particular chapter.
In this article we have provided you important NEET PYQ of Cell the unit of life class 11. Here you will find all NEET previous year questions of Cell The Unit Of Life Class 11 . Solve the below all previous year questions of Cell The Unit Of Life Class 11.
Cell The Unit Of Life Class 11 NEET PYQ
AIPMT 2006
1. Which of the following statements regarding mitochondrial membrane is not correct ?
(1) The outer membrane resembles a sieve
(2) The outer membrane is permeable to all kinds of molecules.
(3) The enzymes of the electron transfer chain are embedded in the outer membrane.
(4) The inner membrane is highly convoluted forming a series of infoldings.
Answer - 3
2. Which of the following statements regarding cilia is not correct?
(1) Cilia contain an outer of nine doublet
microtubules surrounding two single microtubules.
(2) The organized beating of cilia is controlled by fluxes of Ca2+ across the membrane.
(3) Cilia are hair-like cellular appendages.
(4) Microtubules of cilia are composed of tubulin.
Answer - 2
AIPMT 2007
3. Which one of the following is not a constituent of cell membrane ?
(1) Phospholipids
(2) Cholesterol
(3) Glycolipids
(4) Proline
Answer - 4
4. Select the wrong statement from the following :
(1) The chloroplasts are generally much larger than mitochondria
(2) Both chloroplasts and mitochondria contain an inner and an outer membrane
(3) Both chloroplasts and mitochondria have an internal compartment, the thylakoid space
bounded by the thylakoid membrane
(4) Both chloroplasts and mitochondria contain DNA
Answer - 3
AIPMT 2008
5. Polysome is formed by :-
(1) A ribosome with several subunits
(2) Ribosomes attached to each other in a linear arrangement
(3) Several ribosomes attached to a single RNA
(4) Many ribosomes attached to a strand of
endoplasmic reticulum
Answer - 3
6. Vacuole in a plant cell :-
(1) Lacks membrane and contains air
(2) Lacks membrane and contains water and
excretory substances
(3) Is membrane-bound and contains storage
proteins and lipids
(4) is membrane-bound and contains water and excretory substances
Answer - 4
7. In germinating seeds, fatty acids are degraded exclusively in the:
(1) Peroxisomes
(2) Mitochondria
(3) Proplastids
(4) Glyoxysomes
Answer - 4
8. 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) While proteins can flip-flop, lipids can not
(2) Neither lipids, nor proteins can flip-flop
(3) Both lipids and proteins can flip-flop
(4) While lipids can rarely flip–flop,proteins can not
Answer - 4
AIPMT 2009
9. Plasmodesmata are plasmalemma
(1) Connections between adjacent cells
(2) Lignified cemented layers between cells
(3) Locomotary structures
(4) Membranes connecting the nucleus with plasmalemma
Answer - 1
10. Middle lamella is composed mainly of :
(1) Phosphoglycerides
(2) Hemicellulose
(3) Muramic acid
(4) Calcium pectate
Answer - 4
11. Cytoskeleton is made up of :-
(1) Proteinaceous filaments
(2) Calcium carbonate granules
(3) Callose deposits
(4) Cellulosic microfibrils
Answer - 1
AIPMT Pre. 2010
12. The plasma membrane consists mainly of :
(1) proteins embedded in a carbohydrate bilayer
(2) phospholipids embedded in a protein bilayer
(3) proteins embedded in a phospholipid bilayer
(4) proteins embedded in a polymer of glucose molecules
Answer - 3
13. Which one of the following structures between two adjacent cells is an effective transport pathway ?
(1) Plasmalemma
(2) Plasmodesmata
(3) Plastoquinones
(4) Endoplasmic reticulum
Answer - 2
14. Which one of the following has its own DNA?
(1) Peroxisome
(2) Mitochondria
(3) Dictyosome
(4) Lysosome
Answer - 2
15. The main arena of various types of activities of a cell is:
(1) Nucleus
(2) Plasma membrane
(3) Mitochondrian
(4) Cytoplasm
Answer - 4
16. Algae have cell wall made up of:
(1) Cellulose, hemicellulose and pectins
(2) Cellulose, galactans and mannans
(3) Hemicellulose, pectins and proteins
(4) Pectins, cellulose and proteins
Answer - 2
AIPMT Mains 2010
17. An elaborate network of filamentous proteinaceous structures present in the cytoplasm which helps in the maintenance of cell shape is called :
(1) Endosplasmic Reticulum
(2) Plasmalemma
(3) Cytoskeleton
(4) Thylakoid
Answer - 3
18. Identify the components labelled A, B,C and D in the diagram below from the list (i) to (viii) given with
Components :
(i) Cristae of mitochondria
(ii) Inner membrane of mitochondria
(iii) Cytoplasm
(iv) Smooth endoplasmic reticulum
(v) Rough endoplasmic reticulum
(vi) Mitochondrial matrix
(vii) Cell vacuole
(viii)Nucleus
The correct component are :
A B C D
(1) (i) (iv) (viii) (vi)
(2) (vi) (v) (iv) (vii)
(3) (v) (i) (iii) (ii)
(4) (v) (iv) (viii) (iii)
Answer - 4
AIPMT-Pre 2011
19. Important site for formation of glycoproteins and glycolipids is :-
(1) Vacuole
(2) Golgi apparatus
(3) Plastid
(4) Lysosome
Answer - 2
20. Peptide synthesis inside a cell takes place in :
(1) Chloroplast
(2) Mitochondria
(3) Chromoplast
(4) Ribosomes
Answer - 4
21. In eubacteria, a cellular component that resembles eukaryotic cell is :-
(1) Plasma membrane
(2) Nucleus
(3) Ribosomes
(4) Cell wall
Answer - 1
AIPMT-Mains 2011
22. Which one of the following is not considered as a part of the endomembrane system ?
(1) Lysosome
(2) Golgi complex
(3) Peroxisome
(4) Vacuole
Answer - 3
23. The figure below shows the structure of a mitochondrion with its four parts labelled (A), (B), (C) and (D). Select the part correctly matched with its function.
(1) Part (A) : Matrix - major site for respiratory chain enzymes
(2) Part (D) : Outer membrane - gives rise to inner membrane by splitting
(3) Part (B) : Inner membrane - forms infoldings called cristae
(4) Part (C) : Cristae - possess single circular DNA molecule and ribosomes
Answer - 3
AIPMT-Pre 2012
24. Select the correct statement from the following regarding cell membrane :-
(1) Lipids are arranged in a bilayer with polar heads towards the inner part
(2) Fluid mosaic model of cell membrane was proposed by Singer and Nicolson
(3) Na+ and K+ ions move across cell membrane by passive transport
(4) Proteins make up 60 to 70% of the cell membrane
Answer - 2
25. What is true about ribosomes ?
(1) These are found only in eukaryotic cells
(2) These are self-splicing introns of some RNAs
(3) The prokaryotic ribosomes are 80 S where"S" stands for sedimentation coefficient
(4) These are composed of ribonucleic acid and proteins
Answer - 4
26. Ribosomal RNA is actively synthesized in :-
(1) Nucleoplasm
(2) Ribosomes
(3) Lysosomes
(4) Nucleolus
Answer - 4
AIPMT-Mains 2012
27. Which one of the following cellular parts is correctly described:
(1) Ribosomes - those on chloroplasts are larger (80 S) while those in the cytoplasm are smaller (70 S)
(2) Lysosomes-optimally active at a pH of about 8.5
(3) Thylakoids-flattened membranous sacs forming the grana of chloroplasts
(4) Centrioles - sites for active RNA synthesis
Answer - 3
28. Which one of the following structures is an organelle within an organelle?
(1) ER
(2) Mesosome
(3) Ribosome
(4) Peroxisome
Answer - 3
NEET-UG 2013
29. The Golgi complex plays a major role :
(1) in post translational modification of proteins and glycosidation of lipids
(2) in trapping the light and transforming it into
chemical energy
(3) in digesting proteins and carbohydrates
(4) as energy transferring organelles
Answer - 1
30. A major site for synthesis of lipids is :
(1) Nucleoplasm
(2) RER
(3) SER
(4) Symplast
Answer - 3
31. Which one of the following organelle in the figure correctly matches with its function ?
(1) Rough endoplasmic reticulum, protein synthesis
(2) Rough endoplasmic reticulum, formation of glycoproteins
(3) Golgi apparatus, protein synthesis
(4) Golgi apparatus, formation of glycolipids
Answer - 1
AIPMT 2014
32. Which structures perform the function of
mitochondria in bacteria ?
(1) Nucleoid
(2) Ribosomes
(3) Cell wall
(4) Mesosomes
Answer - 4
33. The solid linear cytoskeletal elements having a diameter of 6 nm and made up of a single type of monomer are known as :
(1) Microtubules
(2) Microfilaments
(3) Intermediate filaments
(4) Lamins
Answer - 2
34. The osmotic expansion of a cell kept in water is chiefly regulated by :
(1) Mitochondria
(2) Vacuoles
(3) Plastids
(4) Ribosomes
Answer - 2
35. Match the following and select the correct answer :
(a) Centriole (i) Infoldings in mitochondria
(b) Chlorophyll (ii) Thylakoids
(c) Cristae (iii) Nucleic acids
(d) Ribozymes (iv) Basal body cilia or flagella
(a) (b) (c) (d)
(1) (iv) (ii) (i) (iii)
(2) (i) (ii) (iv) (iii)
(3) (i) (iii) (ii) (iv)
(4) (iv) (iii) (i) (ii)
Answer - 1
AIPMT 2015
36. DNA is not present in :-
(1) Ribosomes
(2) Nucleus
(3) Mitochondria
(4) Chloroplast
Answer - 1
37. Nuclear envelope is a derivative of :-
(1) Membrane of Golgi complex
(2) Microtubules
(3) Rough endoplasmic reticulum
(4) Smooth endoplasmic reticulum
Answer - 3
38. The structures that are formed by stacking of organized flattened membranous sacs in the chloroplasts are:
(1) Grana
(2) Stroma lamellae
(3) Stroma
(4) Cristae
Answer - 1
39. The chromosomes in which centromere is situated close to one end are:
(1) Acrocentric
(2) Telocentric
(3) Sub-metacentric
(4) Metacentric
Answer - 1
40. Which one of the following is not an inclusion body found in prokaryotes ?
(1) Cyanophycean granule
(2) Glycogen granule
(3) Polysome
(4) Phosphate
Answer - 3
41. Select the correct matching in the following pairs:
(1) Smooth ER – Synthesis of lipids
(2) Rough ER– Synthesis of glycogen
(3) Rough ER – Oxidation of fatty acids
(4) Smooth ER – Oxidation of phospholipids
Answer - 1
Re-AIPMT 2015
42. Which of the following structures is not found in prokaryotic cells?
(1) Plasma membrane
(2) Nuclear envelope
(3) Ribosome
(4) Mesosome
Answer - 2
43. Which of the following are not membrane-bound?
(1) Mesosomes
(2) Vacuoles
(3) Ribosomes
(4) Lysosomes
Answer - 3
44. Cellular organelles with membranes are :
(1) Lysosomes, Golgi apparatus and mitochondria
(2) Nuclei, ribosomes and mitochondria
(3) Chromosomes, ribosomes and endoplasmic reticulum
(4) Endoplasmic reticulum, ribosomes and nuclei
Answer - 1
45. A protoplast is a cell :
(1) without cell wall
(2) without plasma membrane
(3) without nucleus
(4) undergoing division
Answer - 1
Q. Match the columns and identify the correct option:
| Column - I | Column - II | ||
|---|---|---|---|
| (a) | Thylakoids | (i) | Disc-shaped sacs in Golgi apparatus |
| (b) | Cristae | (ii) | Condensed structure of DNA |
| (c) | Cisternae | (iii) | Flat membranous sacs in stroma |
| (d) | Chromatin | (iv) | Infoldings in mitochondria |
(a) (b) (c) (d)
(1) (iii) (iv) (ii) (i)
(2) (iv) (iii) (i) (ii)
(3) (iii) (iv) (i) (ii)
(4) (iii) (i) (iv) (ii)
Answer - 3
NEET-I 2016
47. Mitochondria and chloroplast are :-
(a) semi-autonomous organelles
(b) 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) Both (a) and (b) are correct
(2) (b) is true but (a) is false
(3) (a) is true but (b) is false
(4) Both (a) and (b) are false
Answer - 3
48. Microtubules are the constituents of :-
(1) Cilia, Flagella and Peroxisomes
(2) Spindle fibres, Centrioles and Cilia
(3) Centrioles, Spindle fibres and Chromatin
(4) Centrosome, Nucleosome and Centrioles
Answer - 2
49. A complex of ribosomes attached to a single strand of RNA is known as :-
(1) Polysome
(2) Polymer
(3) Polypeptide
(4) Okazaki fragment
Answer - 1
50. Which one of the following cell organelles is enclosed by a single membrane ?
(1) Mitochondria
(2) Chloroplasts
(3) Lysosomes
(4) Nuclei
Answer - 3
51. Water soluble pigments found in plant cell vacuoles are :-
(1) Xanthophylls
(2) Chlorophylls
(3) Carotenoids
(4) Anthocyanins
Answer - 4
NEET-II 2016
52. A cell organelle containing hydrolytic enzymes is:-
(1) Ribosome
(2) Mesosome
(3) Lysosome
(4) Microsome
Answer - 3
NEET(UG) 2017
53. Which of the following cell organelles is responsible for extracting energy from carbohydrates to form ATP ?
(1) Ribosome
(2) Chloroplast
(3) Mitochondrion
(4) Lysosome
Answer - 3
NEET(UG) 2018
54. Which of the following is true for nucleolus
(1) Larger nucleoli are present in dividing cells.
(2) It is a membrane-bound structure.
(3) It takes part in spindle formation.
(4) It is a site for active ribosomal RNA synthesis.
Answer - 4
55. The Golgi complex participates in
(1) Fatty acid breakdown
(2) Formation of secretory vesicles
(3) Respiration in bacteria
(4) Activation of amino acid
Answer - 2
56. Which of the following events does not occur in rough endoplasmic reticulum ?
(1) Protein folding
(2) Protein glycosylation
(3) Cleavage of signal peptide
(4) Phospholipid synthesis
Answer - 4
57. Select the incorrect match :
(1) Lampbrush – Diplotene bivalents chromosomes
(2) Allosomes – Sex chromosomes
(3) Submetacentric – L-shaped chromososmes chromosomes
(4) Polytene – Oocytes of amphibians chromosomes
Answer - 4
NEET(UG) 2019
58. The shorter and longer arms of a submetacentricnchromosome are referred to as :-
(1) s-arm and l-arm respectively
(2) p-arm and q-arm respectively
(3) q-arm and p-arm respectively
(4) m-arm and n-arm respectively
Answer - 2
59. Which of the following pair of organelles does not contain DNA ?
(1) Mitochondria and Lysosomes
(2) Chloroplast and Vacuoles
(3) Lysosomes and Vacuoles
(4) Nuclear envelope and Mitochondria
Answer - 3
I hope this Cell The Unit Of Life Class 11 previous year questions will help you practice better for the NEET exam. To perform better in exam solve more Cell The Unit Of Life Class 11 questions. Solving previous years Cell The Unit Of Life Class 11 NEET questions will be beneficial for you.
Firstly you get an idea of what type of questions are asked in previous year. Every year around many of questions of biology are repeated as it is without even changing single word. These questions guide you in what direction you need extra push.
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