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Plant Structure problems

  • 1. "The universe tends towards maximum disorder" is stated by

  • Options
  • A. first law of thermodynamics
  • B. second law of thermodynamics
  • C. third law of thermodynamics
  • D. none of the above
    • Discuss
  • 2. The cellular organelle associated with photosynthesis is the

  • Options
  • A. golgi complex
  • B. mitochondrion
  • C. lysosome
  • D. chloroplast
    • Discuss
  • 3. If the ends of the following polysaccharide are pulled, which one would stretch the most?

  • Options
  • A. Glycogen
  • B. Starch
  • C. Cellulose
  • D. None of these
    • Discuss
  • 4. Which of the following observations is not used as evidence to support the concept of endosymbiotic origin of chloroplasts and mitochondria?

  • Options
  • A. Both have their own DNA
  • B. Both have their own ribosomes
  • C. Both strongly resemble prokaryotes, especially in size
  • D. Both can live and function independently of the cell
    • Discuss
  • 5. Which of the following statements about mitochondrial proteins is true?

  • Options
  • A. All mitochondrial proteins are coded for and synthesized in the mitochondria
  • B. Some mitochondrial proteins are coded for and synthesized in the mitochondria and others
  • C. All mitochondrial proteins are imported from the cytoplasm
  • D. Mitochondrial proteins arise from other mitochondrial proteins
    • Discuss
  • 6. Which of the following can be found as a part of the mitochondrial matrix?

  • Options
  • A. Ribosomes
  • B. DNA
  • C. Enzymes
  • D. All of these
    • Discuss
  • 7. The cellular organelle associated with secretion is the

  • Options
  • A. golgi complex
  • B. mitochondrion
  • C. ribosome
  • D. lysosome
    • Discuss
  • 8. What is the source of free energy (?G) for moving protons out of mitochondria against their concentration and electrical gradients?

  • Options
  • A. Glycolysis
  • B. Creatine phosphate
  • C. The redox reactions of electron transport
  • D. ATP
    • Discuss
  • 9. Which of the following is not an electron carrier class in the electron transport chain?

  • Options
  • A. Flavoproteins
  • B. Cytochromes
  • C. Iron - sulfur proteins
  • D. Cytochrome c oxidase
    • Discuss
  • 10. Specialized type of peroxisome and the site of glyoxylate pathway in certain plants is known as

  • Options
  • A. gly-peroxisome
  • B. lysosome
  • C. glyoxysome
  • D. none of these
    • Discuss

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