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MCQs

Total Questions : 159 | Page 10 of 16 pages
Question 91. The mitochondria were known in the nineteenth century to be osmotically active on the basis of evidence that
  1.    mitochondria were derived from a symbiotic bacterium
  2.    mitochondria are surrounded by a semi permeable membrane
  3.    the mitochondrial matrix is hypertonic to the cellular cytoplasm
  4.    the mitochondrial matrix is hypotonic to the cellular cytoplasm
 Discuss Question
Answer: Option B. -> mitochondria are surrounded by a semi permeable membrane
Question 92. Which of the following elements is likely to form the least polar covalent bond with hydrogen?
  1.    Carbon
  2.    Oxygen
  3.    Nitrogen
  4.    Phosphorus
 Discuss Question
Answer: Option A. -> Carbon
Question 93. Lysosomes are associated with
  1.    photosynthesis
  2.    respiration
  3.    digestion
  4.    storage
 Discuss Question
Answer: Option C. -> digestion
Question 94. Chemical energy is supplied to eukaryotic cells by
  1.    mitochondria and chloroplasts
  2.    mitochondria only
  3.    mitochondria and ribosomes
  4.    chloroplasts and golgi complexes
 Discuss Question
Answer: Option A. -> mitochondria and chloroplasts
Question 95. Which cell type is likely to have the most mitochondria?
  1.    Slow-twitch muscle
  2.    Liver cells
  3.    Fast-twitch muscle
  4.    Adipose cells
 Discuss Question
Answer: Option A. -> Slow-twitch muscle
Question 96. Which part of a plant contains the male sex cell?
  1.    Ova
  2.    Style
  3.    Pollen
  4.    Stamen
 Discuss Question
Answer: Option C. -> Pollen
Question 97. Tonoplast is a membrane around
  1.    nucleus
  2.    cytoplasm
  3.    mitochondria
  4.    vacuole
 Discuss Question
Answer: Option D. -> vacuole
Question 98. A cell without cell wall is called
  1.    protoplast
  2.    symplast
  3.    apoplast
  4.    none of these
 Discuss Question
Answer: Option A. -> protoplast
Question 99. "The universe tends towards maximum disorder" is stated by
  1.    first law of thermodynamics
  2.    third law of thermodynamics
  3.    second law of thermodynamics
  4.    None of these
 Discuss Question
Answer: Option C. -> second law of thermodynamics
Question 100. The cellular organelle associated with photosynthesis is the
  1.    golgi complex
  2.    mitochondrion
  3.    lysosome
  4.    chloroplast
 Discuss Question
Answer: Option D. -> chloroplast

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