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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
In eubacteris, a cellular component that resembles eukaryotic cell isA. Cell wallB. Plasma membraneC. NucleusD. Ribosomes |
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Answer» Correct Answer - B Lipoprotein cell membrane is found in both but ribosomes are of different kinds. |
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| 52. |
Nucleoid isA. A single inactive nucleus having double stranded DNA and proteinsB. A group of chromosomes associated with proteinsC. A nucleus without nuclear membrane and nucleolus or genetic material of prokaryotesD. A chromosome assocated with proteins |
| Answer» Correct Answer - C | |
| 53. |
Which of the following is not contained in a eukaryotic nucleusA. NucleosomeB. NucleolusC. ChromatinD. Circular DNA molecuels |
| Answer» Correct Answer - D | |
| 54. |
Which one is the largest unicellular organismA. PlanariaB. VolvaxC. Blue green algaeD. Yeast |
| Answer» Correct Answer - D | |
| 55. |
Assertion : Cell membrane is semipermeable. Reason : The constituent molecules can freely move in the membrane.A. If both the assertion and the reason are true and the reason is a correct explanation of the assertionB. If both the assertion and reason are true but the reason is not a correct explanation of the assertionC. If the assertion is true but the reason if falseD. If both the assertion and reason are false |
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Answer» Correct Answer - B Cell membrane is semi permeable as it allows continuous flow of selected materials across it as required from time to time. On the other hand, constituent moelcues of cell membrane are free to move inside membrane. |
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| 56. |
The main arena of various types of activities of a cell is " " Or Proteins required for functioning of nucleus are formed inA. NucleusB. Plasma membraneC. MitochondrianD. Cytoplasm |
| Answer» Correct Answer - D | |
| 57. |
In endoplasmic reticulum the following process take placeA. Lipid synthesisB. Channeling of biosynthetic processesC. Steroid synthesisD. All of the above |
| Answer» Correct Answer - D | |
| 58. |
Which of the following constituent of biological membraneA. PhosphoproteinB. Protein and PhospholipidC. PhospholipidsD. Cellulose |
| Answer» Correct Answer - B | |
| 59. |
Cells obtained from an organism were homogenised and centrifuged. A test indicated that the cells contained glycogen. It you were asked to find out as quickly as possible whether the cells were from a plant or an animal, you wouldA. Examine the centrifuge for the presence of extracts of chloroplastsB. Answer immdeiately that the cells were from a plant sourceC. Examine the centrifuge for the presence of extracts of centriolesD. Answer immediately that the cells were from an animal source |
| Answer» Correct Answer - D | |
| 60. |
Intracellular compartments are not found in cells ofA. Lower plantsB. ProkaryotesC. Higher plantsD. Eukaryotes |
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Answer» Correct Answer - B Because cell organelles are absent in prokaryotes. |
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| 61. |
Mitochondria supply most of the necessary biological energy beA. Breaking down of sugarB. Oxidizing substrates of TCA cycleC. Reducing NADPD. Breaking down of protein |
| Answer» Correct Answer - B | |
| 62. |
Which of the following events does not occur in rough endoplasmic reticulum,A. Protein foldingB. Protein glycosylationC. Cleavage of signal petideD. Phospholipid synthesis |
| Answer» Correct Answer - D | |
| 63. |
"Endoplasmic reticulum" was discovered byA. PorterB. AltmannC. GolgiD. Benda |
| Answer» Correct Answer - A | |
| 64. |
When the region of endoplasmic reticulum are studded by ribosome on their outer surface of the cisternae, it is calledA. Sarcoplasmic reticulumB. Smooth endoplasmic reticulumC. Granular endoplasmic reticulumD. None of the above |
| Answer» Correct Answer - C | |
| 65. |
The endoplasmic reticulum often bearsA. LysosomesB. CentriolesC. PeroxisomesD. Ribosomes |
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Answer» Correct Answer - D Ribosomes are bounded on RER with the help of ribophorin. |
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| 66. |
Mechanical support, enzyme ciruclation, protein synthesis and detoxification of drugs are function of " " Or Which of the following is related to glycosylation of proteinA. ERB. RibosomesC. DictyosomesD. Chloroplast |
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Answer» Correct Answer - A Mechanical supports, enzyme circulation are function of both RER and SER while the protein is synthesized by RER and detoxification of drugs by SER. |
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| 67. |
Protein synthesis in an animal cell, takes placeA. Only in the cytoplasmB. In the cytoplasm as well as in mitochondriaC. In the nucleolus as well as in the cytoplasmD. Only on ribose attahed to nucleon |
| Answer» Correct Answer - B | |
| 68. |
Scientists were able to pinpoint the location of colour processing centres in the visual cortex of the brain by means ofA. PETB. NMRC. CTD. X-ray |
| Answer» Correct Answer - A | |
| 69. |
Assertion : The number of cells in a multicellular organism is inversely proportional to the size of body. Reason : All the cells in the biological world are of same size.A. If both the assertion and the reason are true and the reason is a correct explanation of the assertionB. If both the assertion and reason are true but the reason is not a correct explanation of the assertionC. If the assertion is true but the reason if falseD. If both the assertion and reason are false |
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Answer» Correct Answer - D Number of cells in a multicellular organism are directly proportional to the size of the body. On the other hand, it is a fact that cell vary greatly in their size. Mycoplasma cells are the smallest, ranging from 0.1 to `0.3 mu m`, whereas human cells, generally range from 20 to `30 mum`. Nerve cells are the longest. |
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| 70. |
The most important function of endoplasmic reticulum isA. Protein synthesisB. Nourishing the nucleusC. Secretion of materialsD. To give shape to the cell |
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Answer» Correct Answer - A Because E.R. possesses ribosomes on their membrane which are responisble for protein synthesis. |
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| 71. |
The distribution of two or more specific molecules within a cell can be studied by usingA. Dark field microscopeB. Flourescent microscopeC. Phase contrast microscopeD. Interference contrast microscope |
| Answer» Correct Answer - B | |
| 72. |
The functional unit in the synthesis of protein isA. PeroxisomeB. DictyosomeC. LysosomeD. Polysome |
| Answer» Correct Answer - D | |
| 73. |
What is common between chloroplasts, chromoplasts and leucoplastsA. Presence of pigmentsB. Possession of thylakoids and granaC. Storage of starch, proteins and lipidsD. Ability to multiply by a fission - like process |
| Answer» Correct Answer - D | |
| 74. |
Which one of the following structures is an organelle within an organelle " " Or Which of the following cell organelle lacks DNA and bounding membraneA. RibosomeB. PeroxisomeC. ERD. Mesosome |
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Answer» Correct Answer - A Ribosome is present in some cell organelles like mitochondria. Ribosomes are membraneless organelles which are made up of two sub-units and mRNA. |
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| 75. |
Assertion : It is important that the organisms should have cell. Reason : A cell keeps its chemical composition steady within its boundary.A. If both the assertion and the reason are true and the reason is a correct explanation of the assertionB. If both the assertion and reason are true but the reason is not a correct explanation of the assertionC. If the assertion is true but the reason if falseD. If both the assertion and reason are false |
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Answer» Correct Answer - A Metabolic reactions of a living organism can occur only in a delicately balanced enviroment in the non-living organisms. The cells are the life supporting chambers which have such a special environment. A living cell keeps its chemical composition steady within its boundary. |
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| 76. |
Assertion : Leucoplasts give rise to other types of plastids. Reason : Chromoplasts do not get changed to other types of plastids.A. If both the assertion and the reason are true and the reason is a correct explanation of the assertionB. If both the assertion and reason are true but the reason is not a correct explanation of the assertionC. If the assertion is true but the reason if falseD. If both the assertion and reason are false |
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Answer» Correct Answer - B Leucoplasts can change to other types of plastids, but chromoplasts can not. Chromoplasts are formed either from leucoplasts or chloroplasts. |
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| 77. |
Which of the following dyes is best suited for staining chromosomesA. Basic FuchsinB. SafraninC. Methylene blueD. Carmine |
| Answer» Correct Answer - D | |
| 78. |
The plane of cell wall formation in a dividing cell is determined by " " The filaments associated with cilia and flagella are constituted byA. Golgi appartusB. MicrofilamentsC. MicrotubulesD. Endoplasmic reticulum |
| Answer» Correct Answer - C | |
| 79. |
Which of the following are used to define the karyotype of a species 1. The number of chromosomes 2. The chromosome length 3. The positions of the centromeresA. 1,2 and 3 are correctB. Only 1 and 2 are correctC. Only 2 and 3 are correctD. Only 1 and 3 are correct |
| Answer» Correct Answer - A | |
| 80. |
In a cell that is not dividing, the chromosomes are visible as a tangle of fine threads calledA. Microtubules of cilia are composed of tubulinB. ChromatinC. MicrofilamentsD. Nucleotin |
| Answer» Correct Answer - B | |
| 81. |
Consider the following statements (A) Plant cells have centrioles which are absent in almost all animal cells (B) Ribosomes are the site of protein synthesis (C ) The middle lamella is a layer mainly of calcium carbonate which holds the different neighbouring cells together (D) In animal cell steroidal hormones are synthesized by smooth endoplasmicreticulum Of the above statementsA. (A) and (B) only are correctB. ( C) and (D) only are correctC. (B) and (D) only are correctD. (A) and (D) only are correct |
| Answer» Correct Answer - C | |
| 82. |
Match the columns and identify the correct option `{:("Column -I ","Column-II"),("Thylakoids","(i) Disc-shaped sacs in golgi appartus"),("Cristae","(ii) Condensed structure of DNA"),("Cisternae","(iii) Flat membranous sacs in stroma"),("Chromatin","(iv) Infoldings in mitochondria"):}`A. (iii) (iv) (i) (ii)B. (iii) (i) (iv) (ii)C. (iii) (iv) (ii) (i)D. (iv) (iii) (i) (ii) |
| Answer» Correct Answer - A | |
| 83. |
What would happen if lysosomes get ruptured inside the cells in which they are presentA. Cells will swellB. Cell will shrinkC. Cells will dieD. Nothing would happen |
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Answer» Correct Answer - C Cell wall die due to the release of enzyme of lysosome (autolysis). |
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| 84. |
Assertion : Eukaryotic cells have more DNA than prokaryotes. Reason : Eukaryotes are genetically more complex than prokaryotes.A. If both the assertion and the reason are true and the reason is a correct explanation of the assertionB. If both the assertion and reason are true but the reason is not a correct explanation of the assertionC. If the assertion is true but the reason if falseD. If both the assertion and reason are false |
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Answer» Correct Answer - A Eukaryotic cells have more DNA than prokaryotic cells because in eukaryotic cells complex chromosomes composed of DNA and histone proteins. But in prokaryotic cells histone protein is absent. |
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| 85. |
For cell membrane, name "plasmalermma" was given byA. PorterB. NageliC. CramerD. Plowe |
| Answer» Correct Answer - D | |
| 86. |
Most abundant Lipid in cell membrane isA. PhospholipidB. StarchC. OilD. Sulpholid |
| Answer» Correct Answer - A | |
| 87. |
The osmotic expanison of a cell kept in water is chiefly regulated byA. PlastidsB. RibosomesC. MitochondriaD. Vacuoles |
| Answer» Correct Answer - D | |
| 88. |
Different cells have different sizes. Arrange the following cells in an ascending order of their size. Choose the correct option among the followings i. Mycoplasma, ii. Ostrich eggs iii. Human RBC, iv. BacteriaA. I,iv, iii & iiB. I,ii, iii & ivC. ii, I, iii & ivD. iii, ii, I & iv |
| Answer» Correct Answer - A | |
| 89. |
RER is mainly concerned withA. ProteolysisB. Fatty acids synthesisC. Peptide bond formationD. Cholesterol synthesis |
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Answer» Correct Answer - C RER has ribosome on which protein synthesis occurs. |
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| 90. |
Eukaryotic 80 S ribosome breaks intoA. 40 S and 40 SB. 60 S and 40 SC. 60 S and 50 SD. 50 S and 30 S |
| Answer» Correct Answer - B | |
| 91. |
Ribosone mainly hasA. DNAB. RNAC. CarbohydrateD. None of these |
| Answer» Correct Answer - B | |
| 92. |
The organelles whose major function is storage of hydrolytic enzymes are " " Or Acid hydrolase is found inA. CentriolesB. ChromoplastsC. LysosomesD. Chloroplasts |
| Answer» Correct Answer - C | |
| 93. |
Ribosomes are made up ofA. DNA and proteinB. DNA aloneC. RNA and proteinD. RNA and DNA |
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Answer» Correct Answer - C Ribosome is a combination mRNA and protein. |
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| 94. |
Protoplasm is aA. True solutionB. SuspensionC. EmulsionD. Polyphasic colloidal system |
| Answer» Correct Answer - D | |
| 95. |
Microtubule is involved in theA. Cell divisionB. DNA recognitionC. Muscle contractionD. Membrane architecture |
| Answer» Correct Answer - A | |
| 96. |
Prokaryotic flagella possessA. Helically arranged protein moleculeB. Protein membrane enclosed fibreC. Unit membrane enclosed fibreD. Microtubular 9+2 membrane enclosed structure |
| Answer» Correct Answer - A | |
| 97. |
Flagella with single strand and composed of flagellin is found inA. ProkaryotesB. EukaryotesC. Both (a) and (b)D. None of these |
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Answer» Correct Answer - A The single stranded flagella occurs in prokaryotes e.g., Bacteria etc. They contain only single stranded and not contain 9+2 system. |
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| 98. |
The telomeres of eukaryotic chromosomes consist of short sequences ofA. Adenine rich repeatsB. Guanine rich repeatsC. Thymine rich repeatsD. Cytosine rich repeats |
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Answer» Correct Answer - B Eukaryotic telomeric DNA has been shown to consist of simple randomly repeated sequences characterized by clusters of G-residues in one strand and C-residues in the other . Another feature is a 3 overhang (12-16 nucleotides in length) of the G-rich strand. |
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| 99. |
Present in nucleolus isA. Golgi complexB. LysosomeC. MitochondriaD. Chromosome |
| Answer» Correct Answer - D | |
| 100. |
Both plants and animals are provided withA. Cell wallB. Golgi bodyC. ChloroplastD. Protoplasm |
| Answer» Correct Answer - D | |