Exam 3: Cell Structure and Internal Compartments

The cell in the following figure is moving by producing pseudopodia.This type of movement is a result of the reorganization of a certain component of the cytoskeleton (labeled). Some of the various labeled lines in the figure show

Imagine examining a cell using a light microscope;a prokaryote could be distinguished from a eukaryote by the absence of

Certain ________ in a cell's membrane form channels through which ions and molecules may pass.

The boundary structure that physically defines a cell is the

A screen door allows breezes to enter and aromas to exit,but keeps out insects.Its function most resembles

At the most basic level of life,organic compounds are organized into energy-dependent,self-replicating units known as ________.

Which of the following diseases is NOT caused by a malfunction of or problem in the lysosomes?

Strong evidence that multicellularity conveys adaptive value to multicellular organisms is provided by the fact that it

Which of the following statements is true of chloroplasts?

A cell structure that pinches off from a membrane,encloses material,and then fuses with another membrane to release its contents at its destination is called a(n)________.

Multicellularity offers a variety of advantages to an organism;among the most important is

Volvox,the multicellular green alga shown here,has flagellated cells on its surface cells,but not on interior cells.Which of the following is the most likely explanation for the development of this condition?

Prokaryotic cells are generally larger than eukaryotic cells.

Which of the following molecules is NOT found associated with the plasma membrane?

Which of the following would be the best analogy for the function of the Golgi apparatus?

The symptoms of ________ range from relatively mild muscle weakness to hearing and vision loss and severe muscle and nerve impairment.

Which of the following structures is found in all types of cells?

The components of the cytoskeleton that provide mechanical strength to cells and reinforce the membranes of organelles are called ________.

The ________ endoplasmic reticulum is covered with ribosomes.

The ________ model describes the plasma membrane as a mobile mixture of phospholipids and proteins.