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MCQs

Total Questions : 159 | Page 9 of 16 pages
Question 81. Which cell type is likely to have the most mitochondria?
  1.    Fast-twitch muscle
  2.    Slow-twitch muscle
  3.    Liver cells
  4.    Adipose cells
 Discuss Question
Answer: Option B. -> Slow-twitch muscle
Answer: (b).Slow-twitch muscle
Question 82. Lysosomes are associated with
  1.    photosynthesis
  2.    respiration
  3.    storage
  4.    digestion
 Discuss Question
Answer: Option D. -> digestion
Answer: (d).digestion
Question 83. A cell without cell wall is called
  1.    apoplast
  2.    protoplast
  3.    symplast
  4.    none of these
 Discuss Question
Answer: Option B. -> protoplast
Answer: (b).protoplast
Question 84. Any system that is not at equilibrium
  1.    requires an enzyme to reach equilibrium
  2.    is thermodynamically unstable, although it may be kinetically stable
  3.    is kinetically unstable, although it may be thermodynamically stable
  4.    is rushing toward equilibrium at a very rapid rate
 Discuss Question
Answer: Option B. -> is thermodynamically unstable, although it may be kinetically stable
Question 85. Which is not true about a photon?
  1.    The shorter the wavelength, the greater the energy of the photons
  2.    It is trapped by photosynthetic unit
  3.    It donates electron to reduce carbon dioxide to glucose
  4.    It is a packet of light energy
 Discuss Question
Answer: Option C. -> It donates electron to reduce carbon dioxide to glucose
Question 86. The element neon (Ne) has eight electrons in its outermost electron shell. How many covalent bonds will Ne readily form?
  1.    Four
  2.    None
  3.    One
  4.    Two
 Discuss Question
Answer: Option B. -> None
Question 87. Which of the following functional groups would make a carbon-based compound the least polar?
  1.    Carboxyl
  2.    Amino
  3.    Phosphate
  4.    Methyl
 Discuss Question
Answer: Option D. -> Methyl
Question 88. If the ends of the following polysaccharide are pulled, which one would stretch the most?
  1.    Cellulose
  2.    Glycogen
  3.    None of these
  4.    Starch
 Discuss Question
Answer: Option D. -> Starch
Question 89. Mitochondria can be expected most numerous in
  1.    muscle cells
  2.    green cells
  3.    none of these
  4.    red blood cells
 Discuss Question
Answer: Option A. -> muscle cells
Question 90. Why do some redox reactions in cells result in the transfer of electrons from a reductant with a higher standard redox potential to an oxidant with a lower standard redox potential?
  1.    Electrons always go from reductants with high redox potentials to oxidants with low redox potentials
  2.    Redox potentials are defined under standard conditions, and cellular conditions are typically not standard conditions
  3.    The rules governing oxidation and reduction apply only in vitro, and not in vivo
  4.    None of these
 Discuss Question
Answer: Option B. -> Redox potentials are defined under standard conditions, and cellular conditions are typically not standard conditions

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