In which structure would you find a nucleus?

Both Schwann and Virchow developed important theories about cells in the mid 1800s. Which best explains the reason these theories were made within a few years of each other?

Which statement would not be included in a summary of the cell theory?

In what decade did the cell theory become an accepted part of biology?

A scientist at the polar ice cap was studying an ice sample. While examining it, he found some cell from many years ago. He ID'd these structures: cytoskeleton, mitochondria, nucleus, cell wall, ribosomes. What kind of organism did he find?

Which statement is true about bacterial cells?

On a laboratory exam, a student is asked to determine if the cells under a microscope are plant cells or animal cells. What might the student look for?

Which scientist revolutionized the way biologists think about the evolutionary history of eukaryotes?

An electron microscope can magnify an object about 500,000 times. How does this magnification compare with the magnification of a compound light microscope?

Which defines a cell?

Cholesterol is repelled by water and can be found between the layers of the phospholipids in the plasma membrane. What can be concluded from this information?

Which substance on the plasma membrane helps identify chemical signals from outside the cell?

Where are you least likely to find water in the phospholipid bilayer?

19. What would happen to the phospholipid bilayer if cholesterolIt would become more rigid. is completely removed?

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