Exam 4: Organization of the Cell

A single cell in a smoker's lung has become cancerous.It doubles its DNA and divides much faster than a normal lung cell.The most likely change that would have caused this condition took place in the:

During an infection, white blood cells travel to the infected site and phagocytize the pathogens.After phagocytosis, primary lysosomes fuse with the phagocytic vesicle to form a larger vesicle called a secondary lysosome.The reason for this is:

The smooth endoplasmic reticulum:

A cellular structure found in plant but not animal cells is the:

Which of the following pairs is correctly matched?

Figure 4-4 Use the figure to answer the corresponding question(s). -The formation of carbohydrates from carbon dioxide and water occurs in the portion of Figure 4-4 labeled:

DNA is associated with RNA and certain proteins forming chromatin. __________________

Figure 4-1 Use the figure below to answer the corresponding question(s). -Which of the following statements about Figure 4-1 is true?

Enzymes called proteases in the ER lumen catalyze folding of proteins into proper conformations. __________________

All of the following functions are performed by plant vacuoles EXCEPT:

The cis face of the Golgi complex is most directly involved in which of the following?

Which of the following statements concerning centrioles is FALSE?

Evidence that all living cells have a common origin is provided by:

For the following medical conditions, describe the likely cellular organelle or structure that has been affected in such a way as to cause the condition (note: There may be more than one organelle or structure involved): A. The sperm of a man cannot swim, thus rendering him infertile. B. A child experiences kidney failure due to Fabry's disease where the cells lining the inside of the kidney tubule accumulate abnormally large amounts of glycolipids that are usually degraded by enzymes. C. A person dies within minutes after ingesting cyanide because ATP is no longer being synthesized.

A glycoprotein destined for secretion from the cell would move through the Golgi complex in this sequence:

Which scientist first viewed living cells?

List the similarities and differences between the functions of the chloroplasts and mitochondria.Include the identification of specific structures in your comparison.

Peroxisomes are found in large numbers in cells that synthesize, store, and degrade lipids, and one of their functions is to break down protein molecules. __________________

Which of the following is NOT a cell covering or part of a cell covering?

In the classic experiments by Bracht and Hammerling, the nucleus of Acetabularia was removed, the cap was cut off, a nucleus of a different species was inserted, and the cap was allowed to regenerate.The new cap was then removed.After the second regeneration, the cap was observed, and the following conclusion was made: