1. The Size of Cells and Their Components A typical eukaryotic cell has a cellular diameter of 50 µm. a. If you used an electron microscope to magnify this cell 10,000-fold, how big would the cell appear?

Biochemistry
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Chapter1: Biochemistry: An Evolving Science
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1. The Size of Cells and Their Components A typical eukaryotic cell has a
cellular diameter of 50 μm.
a. If you used an electron microscope to magnify this cell 10,000-fold,
how big would the cell appear?
b. If this cell were a liver cell (hepatocyte) with the same cellular
diameter, how many mitochondria could the cell contain? Assume
the cell is spherical; that the cell contains no other cellular
components; and that each mitochondrion is spherical, with a
diameter of 1.5 µm. (The volume of a sphere is ¹/3ær³.)
c. Glucose is the major energy-yielding nutrient for most cells.
Assuming a cellular concentration of 1 mè glucose (that is, 1
millimole/L), calculate how many molecules of glucose would be
present in the spherical eukaryotic cell. (Avogadro's number, the
number of molecules in 1 mol of a nonionized substance, is
6.02 × 10²³.)
Transcribed Image Text:1. The Size of Cells and Their Components A typical eukaryotic cell has a cellular diameter of 50 μm. a. If you used an electron microscope to magnify this cell 10,000-fold, how big would the cell appear? b. If this cell were a liver cell (hepatocyte) with the same cellular diameter, how many mitochondria could the cell contain? Assume the cell is spherical; that the cell contains no other cellular components; and that each mitochondrion is spherical, with a diameter of 1.5 µm. (The volume of a sphere is ¹/3ær³.) c. Glucose is the major energy-yielding nutrient for most cells. Assuming a cellular concentration of 1 mè glucose (that is, 1 millimole/L), calculate how many molecules of glucose would be present in the spherical eukaryotic cell. (Avogadro's number, the number of molecules in 1 mol of a nonionized substance, is 6.02 × 10²³.)
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