Exam 4: The Cell: Anatomy and Division

This organelle stores and transports proteins, and synthesizes phospholipids and cholesterol.

Ribosomes/ribosomal subunits are found .

From the time it is formed until it reproduces, the cell undergoes growth and carries out its functions in the body. What is the name for this portion of the cell's life cycle?

molecules form the major component of the plasma membrane and are arranged in the form of a bilayer.

In which phase(s) of mitosis do the chromosomes contain a single copy of DNA?

is/are a contractile ring of actin microfilaments that eventually results in the division of the cytoplasm.

The division of human cells consists of a series of events, collectively called , or nuclear division, and , or division of the cytoplasm.

What event immediately precedes anaphase?

During , the shortest phase of mitosis, chromosomes are pulled toward the poles of the cell.

During this phase of mitosis, the mitotic spindle forms and the nuclear envelope fragments.

carry out specific functions inside cells, whereas store glycogen, lipids, pigments, and other substances.

You are observing a slide that contains cells undergoing cell division, and you have focused on a cell that has darkly staining X-shaped chromosomes that appear loose throughout the cell. You cannot see a nuclear envelope. This cell is in _.

The plasma membrane allows nutrients to enter the cell and keeps undesirable substances out of the cell. It also allows wastes to pass out of the cell and keeps valuable cell proteins inside the cell. This property is called .

This organelle is particularly important during cell division. It directs the formation of the mitotic spindle.

The end product of cell division by mitosis is .

Which of the following is not considered to be a cytoskeletal element?

This membranous organelle resembles a stack of flattened sacs with bulbous ends and associated vesicles.

The small size and biconcave shape of this cell gives it flexibility and allows its easy passage through small channels. It is a .

The nucleus, plasma membrane and are the three major regions of cells that can readily be seen with a light microscope.

These small bodies are found inside the nucleus of the cell. Made of proteins and RNA, these structures assemble ribosomes. They are _.