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MCQs

Total Questions : 154 | Page 9 of 16 pages
Question 81. Animals cannot convert fatty acids into glucose because
  1.    acetyl CoA can not be converted to pyruvate
  2.    absence of malate synthase
  3.    absence of dehydrogenase
  4.    absence of a-ketoglutarate dehydrogenase
 Discuss Question
Answer: Option A. -> acetyl CoA can not be converted to pyruvate
Answer: (a).acetyl CoA can not be converted to pyruvate
Question 82. In eukaryotes fatty acid breakdown occurs in
  1.    mitochondrial matrix
  2.    cytosol
  3.    cell membrane
  4.    endoplasmic reticulum
 Discuss Question
Answer: Option A. -> mitochondrial matrix
Answer: (a).mitochondrial matrix
Question 83. How many types of lipoproteins are there?
  1.    2
  2.    6
  3.    8
  4.    5
 Discuss Question
Answer: Option D. -> 5
Answer: (d).5
Question 84. What is the major protein constituent of high-density lipoprotein (HDL)?
  1.    Apolipoprotein A-l
  2.    Apolipoprotein C-l
  3.    Apolipoprotein E
  4.    None of these
 Discuss Question
Answer: Option A. -> Apolipoprotein A-l
Answer: (a).Apolipoprotein A-l
Question 85. Biological membranes are like water beds because
  1.    they are always moving
  2.    they (normally) do not leak their contents
  3.    the membrane is thin compared to the enclosed volume
  4.    all of the above
 Discuss Question
Answer: Option D. -> all of the above
Answer: (d).all of the above
Question 86. The plasma membrane is a selectively permeable barrier due to presence of specific transport
  1.    proteins
  2.    amino acids
  3.    carbohydrates
  4.    none of these
 Discuss Question
Answer: Option A. -> proteins
Answer: (a).proteins
Question 87. Lysozymes are found in
  1.    plant cells
  2.    animal cells
  3.    microbial cells
  4.    all of these
 Discuss Question
Answer: Option A. -> plant cells
Answer: (a).plant cells
Question 88. Which type of molecule spans the membrane, from its inner to outer surface according to the Fluid mosaic model of cell membranes?
  1.    Cholesterol
  2.    Phospholipid
  3.    Protein
  4.    Carbohydrate
 Discuss Question
Answer: Option C. -> Protein
Answer: (c).Protein
Question 89. Which of the following is correct?
  1.    Membranes form boundaries around the cell and distinct subcellular components
  2.    Membranes act as selectively permeable barrier
  3.    Membranes contain varying amount of lipid and protein and some contain small amount of carbohydrates
  4.    All of the above
 Discuss Question
Answer: Option D. -> All of the above
Answer: (d).All of the above
Question 90. Phospholipid contains
  1.    hydrophilic heads and hydrophobic tails
  2.    long water-soluble carbon chains
  3.    positively charged functional groups
  4.    both (b) and (c)
 Discuss Question
Answer: Option A. -> hydrophilic heads and hydrophobic tails
Answer: (a).hydrophilic heads and hydrophobic tails

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