MCQOPTIONS
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MCQOPTIONS
This section includes 113 Mcqs, each offering curated multiple-choice questions to sharpen your Cell Biology knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
In which of following mallus and incus bones are present? |
| A. | jaw |
| B. | ear |
| C. | hand |
| D. | feet |
| Answer» C. hand | |
| 52. |
Humans belong in which of following epoch? |
| A. | Holocene |
| B. | Pleistocene |
| C. | Pliocene |
| D. | Oligocene |
| Answer» B. Pleistocene | |
| 53. |
Event during which a large number of species go extinct is called |
| A. | wipe out |
| B. | mass death |
| C. | mass extinction |
| D. | eons |
| Answer» D. eons | |
| 54. |
Which peptide for the treatment of Alzheimer’s disease was approved by the government for phase I clinical trial? |
| A. | Ab |
| B. | Ab43 |
| C. | Aβ42 |
| D. | Aβ43 |
| Answer» D. Aβ43 | |
| 55. |
What are the types of nucleic acids are found in living organisms? |
| A. | deoxyribonucleic acid and nucleotide acid |
| B. | deoxyribonucleic acid and ribonucleic acid |
| C. | ribonucleic acid and nucleotide acid |
| D. | ribonucleic acid and nucleoside acid |
| Answer» C. ribonucleic acid and nucleotide acid | |
| 56. |
What is the major difference between a fat (triacylglycerol) and a phospholipid (diacylglycerol)? |
| A. | Glycerol conformation |
| B. | Hydrogen bonding |
| C. | Fatty acid chain |
| D. | Solubility |
| Answer» D. Solubility | |
| 57. |
Which of the following groups of amino acids are least soluble in water? |
| A. | Polar |
| B. | Non-polar |
| C. | Polar charged |
| D. | Polar uncharged |
| Answer» C. Polar charged | |
| 58. |
Which protein is involved in Creutzfeld-Jacob disease (CJD)? |
| A. | Myoglobin |
| B. | Myosin |
| C. | Keratin |
| D. | Prion |
| Answer» E. | |
| 59. |
Fats contain more chemical energy than carbohydrates. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 60. |
Which of following do not belong to tetrapods? |
| A. | mammals |
| B. | reptiles |
| C. | arachnids |
| D. | amphibians |
| Answer» D. amphibians | |
| 61. |
Methylthionium chloride is a __________________ |
| A. | drug |
| B. | neuronal cell |
| C. | cell marker |
| D. | placebo |
| Answer» B. neuronal cell | |
| 62. |
Microorganisms use D-amino acids. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 63. |
Which of following is earth's youngest mountain range? |
| A. | Himalayas |
| B. | Alps |
| C. | Kilimanjaro |
| D. | Mount Everest |
| Answer» B. Alps | |
| 64. |
How many million years ago did therapsids exist? |
| A. | 280 |
| B. | 400 |
| C. | 500 |
| D. | 100 |
| Answer» B. 400 | |
| 65. |
Another supercontinent has been expected to form in how many million years from now? |
| A. | 1 |
| B. | 3 |
| C. | 250 |
| D. | 900 |
| Answer» D. 900 | |
| 66. |
Mitochondrial DNA is in which of following forms? |
| A. | segmented |
| B. | scattered |
| C. | linear |
| D. | circular |
| Answer» E. | |
| 67. |
How many million years old fossils of eukaryotes have been found? |
| A. | 1800 |
| B. | 1000 |
| C. | 500 |
| D. | 200 |
| Answer» B. 1000 | |
| 68. |
Which monomers compose the strands of nucleic acids? |
| A. | Amino acids |
| B. | Ribose |
| C. | Functional groups |
| D. | Nucleotides |
| Answer» E. | |
| 69. |
Which of following is most likely to be genetic material? |
| A. | RNA |
| B. | ssDNA |
| C. | dsDNA |
| D. | tRNA |
| Answer» B. ssDNA | |
| 70. |
The mutated and normal prion proteins associated with CJD have the same amino acid sequence. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 71. |
In most animals, fats are stored in special cells called _____________ |
| A. | telomeres |
| B. | granulocytes |
| C. | lymphoid cells |
| D. | adipocytes |
| Answer» E. | |
| 72. |
Which of the following molecules bind to nascent polypeptides synthesized on the ribosomes? |
| A. | Chaperonins |
| B. | Hsp70 |
| C. | Hsp72 |
| D. | Hsp |
| Answer» D. Hsp | |
| 73. |
For which of following incisor teeth are used? |
| A. | grinding |
| B. | crushing |
| C. | piercing |
| D. | tearing |
| Answer» E. | |
| 74. |
Which of following does not belong to first three eons? |
| A. | hadean |
| B. | Archaean |
| C. | Proterozoic |
| D. | Paleozoic |
| Answer» E. | |
| 75. |
Enzymes in a cell can distinguish between L and D forms of sugar. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 76. |
For which of following molar teeth are used? |
| A. | piercing |
| B. | tearing |
| C. | pulling |
| D. | crushing |
| Answer» E. | |
| 77. |
Mitochondria and chloroplast replicate by which of following process? |
| A. | replication |
| B. | binary fission |
| C. | cloning |
| D. | splitting |
| Answer» E. | |
| 78. |
Which of the following amino acids does not belong to polar charged group? |
| A. | Serine |
| B. | Aspartic acid |
| C. | Lysine |
| D. | Arginine |
| Answer» B. Aspartic acid | |
| 79. |
Carbonic acid and bicarbonate ions buffer which of the following? |
| A. | Cytosol |
| B. | Cytoplasm |
| C. | Blood |
| D. | Lymph |
| Answer» D. Lymph | |
| 80. |
Which bonds are present in two neighboring amino acids? |
| A. | Glycosidic bonds |
| B. | Polypeptide bonds |
| C. | Amide bonds |
| D. | Hydrogen bonds |
| Answer» C. Amide bonds | |
| 81. |
In addition to amyloid-β peptide, which other protein is misfolded in the brains of Alzheimer’s disease patients? |
| A. | Alpha |
| B. | Zau |
| C. | Theta |
| D. | Tau |
| Answer» E. | |
| 82. |
How many million years ago did late cynodonts exist? |
| A. | 10 |
| B. | 20 |
| C. | 220 |
| D. | 300 |
| Answer» D. 300 | |
| 83. |
Over past 1.5 billion years how many times a supercontinent has been formed? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» D. 4 | |
| 84. |
Which of the following is released when a Hydrogen atom loses an electron? |
| A. | Nucleus |
| B. | Proton |
| C. | Charge |
| D. | Ion |
| Answer» C. Charge | |
| 85. |
Layered rocks formed when prokaryotes bind thin films of sediments together is called |
| A. | igneous |
| B. | alluvium |
| C. | Stromalite |
| D. | pebble |
| Answer» D. pebble | |
| 86. |
What is the concentration of pure water? |
| A. | 55.51 M |
| B. | 25.51 M |
| C. | 55 M |
| D. | 25 M |
| Answer» B. 25.51 M | |
| 87. |
A solution having a pH of 6 has a proton concentration of _______ |
| A. | 10¯⁶ M |
| B. | 10⁶ M |
| C. | 6 M |
| D. | 0.6 M |
| Answer» B. 10⁶ M | |
| 88. |
What is the full form of pH? |
| A. | Positive hydrogen |
| B. | Potential Hydrogen |
| C. | Positron |
| D. | Proton of hydrogen |
| Answer» C. Positron | |
| 89. |
Acids that lose a proton easily are weak acids. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» C. May be True or False | |
| 90. |
Which of the following is an example of amphoteric molecule? |
| A. | Acetic acid |
| B. | Malic acid |
| C. | Sugars |
| D. | Water |
| Answer» E. | |
| 91. |
Eukaryotic subunits are not capable of self-assembly. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 92. |
Which protein of the smaller subunit of bacterial ribosome was found to have a function in ribososme assembly? |
| A. | S12 |
| B. | S14 |
| C. | S16 |
| D. | S18 |
| Answer» D. S18 | |
| 93. |
The large (50S) ribosomal subunit of bacteria contains _______ molecules of RNA. |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 94. |
Cell in which an endosymbiont life is called |
| A. | host cell |
| B. | hold cell |
| C. | control cell |
| D. | replicative cell |
| Answer» B. hold cell | |
| 95. |
Which of following was longest eon? |
| A. | Phanerozoic eon |
| B. | hadean |
| C. | Archaean |
| D. | Proterozoic |
| Answer» E. | |
| 96. |
For how many billion years first three eons lasted? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» E. | |
| 97. |
What is rate of movement of continents per year? |
| A. | few mm per year |
| B. | few cm per year |
| C. | few meters per year |
| D. | 1 km/year |
| Answer» C. few meters per year | |
| 98. |
In each mass extinction, what is average percentage of marine animals that went extinct? |
| A. | 10 |
| B. | 20 |
| C. | 40 |
| D. | 50 |
| Answer» E. | |
| 99. |
What are RNA catalysts called? |
| A. | RNAse |
| B. | RNA initiator |
| C. | RNA polymerase |
| D. | ribozymes |
| Answer» E. | |
| 100. |
What are last billion years on earth called? |
| A. | Phanerozoic eon |
| B. | hadean |
| C. | Archaean |
| D. | Proterozoic |
| Answer» B. hadean | |