Exam 3: Cells: the Living Units

Aquaporins are believed to be present in red blood cells and kidney tubules, but not in any other cells in the body.

Compare a gap junction to a channel protein, how are they alike and how are the different?

Why can we say that a cell without a nucleus will ultimately die?

If a sequence of nucleotides on one strand of DNA is CCGATT, what would the complementary sequence look like on the other strand?

How is the resting potential formed? How is it maintained?

How are the products of free ribosomes different from membrane-bound ribosomes?

Crenation (shrinking) is likely to occur in blood cells immersed in_________ .

A gene can best be defined as_________ .

Concentration differences cause ionic imbalances that polarize the cell membrane, and active transport processes.

If a tRNA had an AGC anticodon, it could attach to a(n) _________mRNA codon.

Which of the following is a function of a plasma membrane protein?

Describe two important functions of the Golgi apparatus.

Apoptosis is programmed cell death; cancer cells do not undergo this process.

Briefly name the subphases of interphase and tell what they do.

Which of these is an inclusion, not an organelle?

A red blood cell would swell if its surrounding solution were .

The process of discharging particles from inside a cell to the outside is called _________.

Which of the following describes the plasma membrane?

The movement of water across the plasma membrane can be described by all of the following EXCEPT_________ .

Which of the following would NOT be a constituent of a plasma membrane?