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MCQs

Total Questions : 137 | Page 10 of 14 pages
Question 91. What is the sedimentation coefficient of mitochondrial ribosome of humans?
  1.    70S
  2.    55S
  3.    80S
  4.    60S
 Discuss Question
Answer: Option B. -> 55S
Answer: (b).55S
Question 92. Which of the following is not a sorting signal present of protein?
  1.    Signal patch
  2.    Signal peptide
  3.    Carbohydrate sequence
  4.    Amino acid sequence
 Discuss Question
Answer: Option C. -> Carbohydrate sequence
Answer: (c).Carbohydrate sequence
Question 93. Which of the following Scientist discovered ribosome for the first time?
  1.    George Emil Palade
  2.    Theodor Schwann
  3.    Antonie van Leeuwenhoek
  4.    Robert Hook
 Discuss Question
Answer: Option A. -> George Emil Palade
Answer: (a).George Emil Palade
Question 94. Which of the following transport involves translocation of the protein from cytosol to the nucleus?
  1.    Transmembrane transport
  2.    Vesicular transport
  3.    Non-gated transport
  4.    Gated transport
 Discuss Question
Answer: Option D. -> Gated transport
Answer: (d).Gated transport
Question 95. Which of the following statement is defines polysomes?
  1.    Lysosomal aggregation
  2.    Multiple units of ribosomes
  3.    Attachment of many ribosomes to common mRNA
  4.    Attachment of many mRNA to ribosomes
 Discuss Question
Answer: Option C. -> Attachment of many ribosomes to common mRNA
Answer: (c).Attachment of many ribosomes to common mRNA
Question 96. Name the site where secreted protein synthesized?
  1.    ER membrane bound ribosomes
  2.    Mitochondrial ribosome
  3.    Membrane free ribosome
  4.    Chloroplast ribosome
 Discuss Question
Answer: Option A. -> ER membrane bound ribosomes
Answer: (a).ER membrane bound ribosomes
Question 97. Name the antibiotic which inhibits protein synthesis in eukaryotes?
  1.    Penicillin
  2.    Cycloheximide
  3.    Cinhonine
  4.    Chlorophenicol
 Discuss Question
Answer: Option B. -> Cycloheximide
Answer: (b).Cycloheximide
Question 98. Protein undergoes modifications in ER before reaching their final destination.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 99. What is microsome?
  1.    Compartment of Golgi
  2.    Smaller ribosomes
  3.    Small ER compartments
  4.    Small vesicles of fragmented ER
 Discuss Question
Answer: Option D. -> Small vesicles of fragmented ER
Answer: (d).Small vesicles of fragmented ER
Question 100. Which of the following is the largest single membrane-bound intracellular compartment?
  1.    Ribosome
  2.    Golgi apparatus
  3.    Nucleus
  4.    Endoplasmic reticulum
 Discuss Question
Answer: Option D. -> Endoplasmic reticulum
Answer: (d).Endoplasmic reticulum

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