Exam 3: Cell Structure and Function

Which of these is an example of carrier-mediated transport that does not require energy input?

Briefly explain the process of active transport as it relates to the sodium-potassium pump.

Protein production is a function of the

Figure 3-4 Protein Synthesis Use Figure 3-4 to answer the following questions: -Identify the organelle shown in the figure, which is described as stacks of flattened membranes containing chambers.

Which molecule carries an amino acid to the site of protein synthesis during translation?

Identify the phase of mitosis, which ends when daughter chromosomes move to the centrioles at opposite poles of the cell.

A process that requires ATP energy to move a substance independently of its concentration gradient is called

The smallest living things are

Flu viruses enter into a prospective host cell (along the respiratory tract) and direct it to produce many copies of the viruses. As those viruses bud off of the infected cell, they take the cell membrane of the host cell with them. How might this kill the host cell?

The mRNA sequence that is complementary to the sequence UAG on a tRNA is

Which of the following consists of a set of flattened membranous disks?

Palytoxin is a very potent toxin from a particular seaweed in Hawaii that locks the carrier proteins of the ion pump system of the cell in an open position. What result would this have on cell function?

Which statement is true about cancer and cancer cells?

Structure #1 represents the

Translation takes place on the

Mutations are permanent alterations in which of the following?

A cell must expend energy to accomplish substance movement during

Synthesis of phospholipids is a function of the

The process of binding a specific molecule and then bringing it into the cell in a vesicle is called

A solution that contains a higher solute concentration than the cytoplasm of a cell is called