Obtain and process energy
Convert genetic information into proteins
Keep certain biochemical reactions separate from one another
Both a & b
All of above
Cutting it into smaller pieces
Making it sperical
All of the above
A plasma membrane
A nuclear envelope
A prokaryotic cell does not have a nucleus, whereas a eukaryotic cell does
A prokaryotic cell does not have DNA, whereas a eukaryotic cell does
A prokaryotic cell is smaller than a eukaryotic cell
Prokaryotic cells have not prospered, whereas eukaryotic cells are evolutionary "successes"
A prokaryotic cell cannot obtain energy from its environment
Cell wall; membranes
The 3 mm cube has a higher ratio
The ratio increases as the cube becomes larger
Increasing the volume increases the ratio
The ratio decreases as the cube becomes larger
The ratio does not change
Electron beams have more energy than light beams
Electron microscopes focus light with magnets
Electron microscopes have more resolving power than light microscopes
Electrons have such high energy that they pass through biological samples
Living cells can be observed under the electron microscope
Regulate which materials can cross the membrane
Support the cell and determine its shape
Produce energy for the cell
Produce proteins for the cell
Move the cell
Is a static region of the cell
Is composed largely of water
Supports the cell and determines its shape
Chemically modifies proteins and other molecules
The golgi apparatus
B, c, and d
Carry on photosynthesis
Engulf and phagocytize bacteria
Propel the cell
Hydrolyze carbohydrates to ATP
D. cell wall.
E. peptidoglycan molecule.
A. The bacterium would no longer be able to swim.
B. The bacterium would not adhere to other cells as well.
C. The bacterium would no longer be able to regulate the movement of molecules into and out of the cell.
D. The bacterium would dry out.
E. The shape of the bacterium would change.
A. Prokaryotes have more diverse energy sources.
B. Prokaryotes have a capsule that limits cell growth.
C. The rigid cell wall found in prokaryotes limits cell size.
D. Prokaryotes lack the genetic material needed for protein synthesis.
E. Eukaryotes have compartmentalization, which allows for specialization.
A. is composed of hydrophobic proteins.
B. regulates traffic into and out of the cell.
C. is studded with ribosomes.
D. allows for interactions among molecules.
E. is perforated with pores.
A. It contains pores for the passage of large molecules.
B. It is composed of two membranes.
C. It contains ribosomes on the inner surface.
D. Both a and b
E. All of the above
A. Separating a cell from its environment
B. Selecting what goes into and out of the cell
C. Maintaining a constant internal environment
D. Communicating with adjacent cells
E. All of the above