Exam 3: The Cellular Level of Organization

________ channels can open or close to regulate the passage of materials through the cell membrane. (Note: Be sure to capitalize the first letter of your answer).

What role does the sodium-potassium exchange pump play in stabilizing the resting membrane potential?

Differentiate between transcription and translation.

Two types of vesicular transport include

As genes are functionally eliminated,the cell becomes limited in the range of proteins it can make.This specialization process is termed

The mRNA sequence that is complementary to the sequence ATC on DNA is

Specific proteins are manufactured through the interaction of ________ and ________.

Write out the term for tRNA.

Mitosis is to somatic cells as meiosis is to

Which phase of the cell cycle has the most variable duration?

The organelles and the watery component of the cell together is called

A defense cell engulfing a bacterium illustrates

Which of the following about cytoplasm is false?

A process that requires cellular energy to move a substance against its concentration gradient is called

Renewal or modification of the cell membrane is a function of the

The ________ typically consists of five or six flattened membranous discs called cisternae.

The functional units of DNA that contain the instructions for making one or more proteins are

If a cell lacked the enzyme DNA polymerase,it could not

How would an inhibitor of the sodium-potassium exchange pump affect the resting potential?

In a series of measurements of resting transmembrane potentials,the following values were recorded.Which one is likeliest to be an error?