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MCQs

Protoplasms And Tissues, Cytoplasmic Membrane Systems, Tissues

Total Questions : 143 | Page 12 of 15 pages
Question 111. Due to their amphiphilic characteristics, phospholipids form
  1.    lipid layer
  2.    lipid bilayer
  3.    lipid trilayer
  4.    lipid tetralayer
 Discuss Question
Answer: Option B. -> lipid bilayer
Answer: (b).lipid bilayer
Question 112. A steroid which decreases membrane fluidity is
  1.    cholesterol
  2.    cholic acid
  3.    Estradiol
  4.    progesterone
 Discuss Question
Answer: Option A. -> cholesterol
Answer: (a).cholesterol
Question 113. The number of hydrophobic tails, a phospholipid molecule contains is
  1.    1
  2.    2
  3.    3
  4.    4
 Discuss Question
Answer: Option B. -> 2
Answer: (b).2
Question 114. Which type of signals direct the proteins to their appropriate cellular destinations?
  1.    sorting signals
  2.    apoptotic signals
  3.    ubiquitylation
  4.    degradation signals
 Discuss Question
Answer: Option A. -> sorting signals
Answer: (a).sorting signals
Question 115. Which technique was used to study the secretory pathway in acinar cells of the pancreas for the first time?
  1.    Gel electrophoresis
  2.    Chromatography
  3.    Autoradiography
  4.    ELISA
 Discuss Question
Answer: Option C. -> Autoradiography
Answer: (c).Autoradiography
Question 116. “Pulse-chase” is an experiment related to radioactivity.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 117. Which type of molecules are used for labeling the cellular entities in the autoradiography technique?
  1.    Glycoproteins
  2.    Radioisotopes
  3.    Stereoisomers
  4.    Enantiomers
 Discuss Question
Answer: Option B. -> Radioisotopes
Answer: (b).Radioisotopes
Question 118. Green fluorescent protein (GFP) is observed from which of the following organism?
  1.    Octopus
  2.    Jellyfish
  3.    Drosophila
  4.    Mouse
 Discuss Question
Answer: Option B. -> Jellyfish
Answer: (b).Jellyfish
Question 119. In yeast cells, protein transport across the endoplasmic reticulum membrane occurs __________
  1.    perpendicularly
  2.    discontinuously
  3.    co-translationally
  4.    post-translationally
 Discuss Question
Answer: Option D. -> post-translationally
Answer: (d).post-translationally
Question 120. The cysteine residues present in the reduced form in peptides that enter the endoplasmic reticulum lumen are converted into ____________ when they leave the compartment.
  1.    hydrolyzed bonds
  2.    hydrophobic bonds
  3.    disulfide bonds
  4.    hydrophilic bonds
 Discuss Question
Answer: Option C. -> disulfide bonds
Answer: (c).disulfide bonds

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