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Home Biotechnology Plant Structure Comments

  • Question
  • The composition of the inner mitochondrial membrane is most like that of


  • Options
  • A. the outer mitochondrial membrane
  • B. the cell's plasma membrane
  • C. some bacterial plasma membranes
  • D. the nuclear membrane

  • Correct Answer
  • some bacterial plasma membranes 


  • Plant Structure problems


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    • 1. 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?

    • Options
    • A. Redox potentials are defined under standard conditions, and cellular conditions are typically not standard conditions
    • B. The rules governing oxidation and reduction apply only in vitro, and not in vivo
    • C. Electrons always go from reductants with high redox potentials to oxidants with low redox potentials
    • D. None of the above
    • Discuss
    • 2. Mitochondria can be expected most numerous in

    • Options
    • A. green cells
    • B. red blood cells
    • C. muscle cells
    • D. none of these
    • Discuss
    • 3. Which cell type is likely to have the most mitochondria?

    • Options
    • A. Fast-twitch muscle
    • B. Slow-twitch muscle
    • C. Liver cells
    • D. Adipose cells
    • Discuss
    • 4. The mitochondria were known in the nineteenth century to be osmotically active on the basis of evidence that

    • Options
    • A. the mitochondrial matrix is hypotonic to the cellular cytoplasm
    • B. the mitochondrial matrix is hypertonic to the cellular cytoplasm
    • C. mitochondria were derived from a symbiotic bacterium
    • D. mitochondria are surrounded by a semi permeable membrane
    • Discuss
    • 5. A cell without cell wall is called

    • Options
    • A. apoplast
    • B. protoplast
    • C. symplast
    • D. none of these
    • Discuss
    • 6. Which of the following functional groups would make a carbon-based compound the least polar?

    • Options
    • A. Phosphate
    • B. Methyl
    • C. Carboxyl
    • D. Amino
    • Discuss
    • 7. Tonoplast is a membrane around

    • Options
    • A. cytoplasm
    • B. vacuole
    • C. nucleus
    • D. mitochondria
    • Discuss
    • 8. Chemical energy is supplied to eukaryotic cells by

    • Options
    • A. chloroplasts and golgi complexes
    • B. mitochondria and ribosomes
    • C. mitochondria only
    • D. mitochondria and chloroplasts
    • Discuss
    • 9. Both plant and animal cell possess

    • Options
    • A. cell walls
    • B. mitochondria
    • C. central vacuoles
    • D. chloroplast
    • Discuss
    • 10. The element neon (Ne) has eight electrons in its outermost electron shell. How many covalent bonds will Ne readily form?

    • Options
    • A. None
    • B. One
    • C. Two
    • D. Four
    • Discuss


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