Exam 5: Cell Structure

Main cell structures include all of the following except:

The size of a cell's nucleolus is indirectly related to the amount of protein the cell produces.

Tight junctions do not allow molecules to spread through the cracks between cells.

Two types of lipids, phospholipids and cholesterol, are important molecules in the cell membrane.

Match each cell structure with its corresponding description or function. -Functions in processing and packaging of protein molecules to be exported from the cell

The inner folds of the mitochondria are called cisterna.

Water-soluble substances easily pass through the cell membrane.

Name and describe the three types of cell connections.

Which of the following is not a function of the integral membrane proteins?

The plasma membrane can be described as a double layer of phospholipid molecules.

Many ribosomes can work on the same mRNA strand at the same time; when this occurs, the structure is called a polyribosome.

Describe the structure of the cell membrane, and explain what is meant by the fluid mosaic model.

What is the function of the centrosome, and by what other name is it known?

The fundamental unit of life is the:

Match each term to the phrase that describes it best. -Cell fiber that can be found in muscle cells

Name and give the functions of the nonmembranous organelles of the cell.

The cell extension that assists epithelial cells in absorption is called:

Which of the following does not describe a structure or function of the proteasome?

Cilia are longer and more numerous than flagella.

Integral membrane proteins play an important role in pinching off the cell membrane so two new cells can form during cell division.