Chapter Questions
How did microscopes contribute to the formulation of the cell theory?
How does the formation of the cell theory illustrate the process of science?
List the features that all cells share, then name three structures or activities found in eukaryotic cells but not in bacteria or archaea.
List the features that all cells share, then name three structures found in eukaryotic cells but not in bacteria or archaea.
If a eukaryotic cell is like a house, how is a prokaryotic cell like a oneroom apartment?
If a eukaryotic cell is like a house, how is a prokaryotic cell like an efficiency (one-room) apartment?
List three structural differences between plant and animal cells. Explain how each structural difference reflects a functional difference between plants and animals.
Suppose you find a sample of cells at a crime scene. What criteria might you use to determine if the cells are from prokaryotes, plants, or animals?
Rank the following in order from smallest to largest: ant, prokaryotic cell actin molecule, microtubule, nitrogen atom. What type of microscope (if any) would you need if you wanted to see each?
Which has a greater ratio of surface area to volume, a hippopotamus or a mouse? Which animal would lose heat faster in a cold environment and why?
Rank the following in order from smallest to largest: ant, prokaryotic cell, actin molecule, microtubule, nitrogen atom. What type of microscope (if any) would you need if you wanted to see each?
List the chemicals that make up cell membranes.
Which cell in figure 3.31 has the highest ratio of surface area to volume? Explain your answer.
Compare and contrast the phospholipid bilayer with two pieces of Velcro sticking to each other.
What advantages does compartmentalization confer on a large cell?
Imagine that you could engineer a cell that exchanges gases efficiently with the environment and quickly metabolizes sugars. Describe your cell's size and shape. What organelles would be abundant?
Emulsifiers are common food additives. A typical emulsifier molecule has a hydrophilic end and a hydrophobic end. Draw a diagram explaining how an emulsifier can enable oil to mix with water
Choose an organelle in a human cell, and imagine that a disease causes that organelle to be faulty. How would the malfunctioning organelle affect the cell's function?
One way to understand cell function is to compare the parts of a cell to the parts of a factory. For example, the Golgi apparatus would be analogous to the factory's shipping department. How would the other cell parts fit into this analog
Why does a muscle cell contain many mitochondria and a white blood cell (an immune cell that engulfs bacteria) contain many lysosomes?
How does the cytoskeleton interact with other structures in eukaryotic cells?
How do plant cells form cell walls?
Describe how animal cells use junctions in different ways.