Exam 5: Cell Structure

Ribosomes attached to the endoplasmic reticulum are responsible for making proteins to be exported out of the cell.

Explain the structure and function of cilia and flagella. What is the only type of human cell that has a flagellum?

Match each term to the phrase that describes it best. -Cell connections that are like small "spot welds"

Rough endoplasmic reticulum looks rough because there are mitochondria attached to it.

The fluid mosaic model describes the chromatin material found in the nucleus.

Match each term to the phrase that describes it best. -Cell extensions that are shorter than flagella and are found lining the respiratory tract

Which organelle processes and packages material to be secreted?

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

Schleiden and Schwann were the first scientists to see cells.

Which organelle consists of separate tiny sacs called cisternae?

Chromosomes and chromatin are both forms of DNA.

Gap junctions are found in the small intestine. They allow molecules to flow between cells.

The barrier function of the plasma membrane is accomplished by the:

Damage to the centrosome and centrioles in a cell would have the greatest impact on which cell function?

One important function of integral membrane proteins is signal transduction or carrying messages across the cell membrane.

Which of the following statements does not describe the nucleolus?

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

The thinnest cell fibers are tiny, hollow tubes called microtubules.

Which structures in the cell membrane are a stiff grouping of membrane molecules that are rich in cholesterol?

Name and explain the function of each of the three types of cell fibers in the cell.