Exam 4: Eukaryotic Cell Structure and Function

The nucleolus is a highly active region of the nucleus that is required for synthesis of ribosomes.

Although similar in function, the eukaryotic ribosome is generally smaller and more complex than the prokaryotic ribosome.

The Golgi apparatus is comprised of flattened, saclike structures called __________, which may be clustered in one region or scattered throughout the cell.

The distribution of lipids in the plasma membrane of eukaryotes is symmetrical.

An organism with one copy of each chromosome is said to be

The membrane bound structure that contains the chromosomes of eukaryotes is called the nucleus.

A (n) __________ is a special type of lysosome used by a cell to selectively digest and recycle cytoplasmic contents, such as mitochondria.

Which of the following is useful in distinguishing between prokaryotic and eukaryotic cells?

Chloroplasts are the site for both the light and dark reactions of photosynthesis.

Proteins are synthesized on structures called

The inner membrane system of chloroplasts consists of flattened sacs called __________ that form stacks called __________.

A lysosome containing undigested material is called

The enzymes and electron carriers involved in electron transport and oxidative phosphorylation are located in the __________ membrane of the mitochondrion.

The nucleolus plays a major role in synthesis of

Endoplasmic reticulum (ER) with many ribosomes attached is called __________ ER, whereas endoplasmic reticulum that is mostly devoid of ribosomes is called __________ ER.

Eukaryotes usually have more than one chromosome for the storage of genetic information.

The light reactions of photosynthesis, which form ATP and NADPH, take place in the

The __________ is a complex structure or set of structures lying beneath the plasma membrane of many protozoa and some algae, which serves as a supportive mechanism for these cells.

Protein filaments with a diameter of about 10 nm that are major components of the cytoskeleton are called

Flimmer filaments