Exam 4: The Cell: Anatomy and Division

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

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

The end product of cell division by mitosis is_________ .

Which of the following organelles transport substances throughout cell cytoplasm?

It is useful to study a "generalized" ("composite")cell because __________.

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_________ .

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

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

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

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

This organelle digests other worn- out organelles and foreign substances that have entered the cell.

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 _________.

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

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

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

Only one human cell has a flagellum. This specialization allows the cell to propel itself forward. It is a_________ .

Common functions of almost all cells include_________ .

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

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

The nucleus of the cell contains its genes, which are sections of _________.