Test Review

Which one of the following organelles is not surrounded by a membrane?

ribosomes

A normal size range for a typical eukaryotic cell is _____.

10 to 100 micrometers

What is the valuable product of cellular respiration?

ATP

A researcher made an interesting observation about a protein used to build a cell's plasma membrane. The final protein in the plasma membrane was slightly different from the protein made by the ER. The protein was probably altered in the _____.

Golgi apparatus

Which of the following statements describes the function of the contractile vacuole?

It eliminates excess water from the cytoplasm of freshwater protists.This answer is correct.

Which one of the following is the most likely consequence for a cell lacking functional lysosomes?

The cell becomes crowded with undegraded wastes.This answer is correct.

A certain cell has mitochondria, ribosomes, smooth and rough endoplasmic reticulum, and other parts. Based on this information, it could not be _____.

a bacterium

The endomembrane system does all of the following except _____.

act as the control center of the cell

Which cellular organelle is required for photosynthesis in eukaryotic cells?

chloroplast

Mitochondria and chloroplasts are similar in that they both _____; they are different in that chloroplasts, but not mitochondria, _____.

have an inner membrane and outer membrane ... carry out photosynthesis

Phospholipids _____.

have hydrophilic phosphate groups and hydrophobic fatty acid tails

Sara would like to film the movement of chromosomes during cell division. Her best choice for a microscope would be a _____.

light microscope, because the specimen is alive

Which of the following organelles would be especially abundant in the pancreatic cells that produce digestive enzymes that function in the small intestine?

lysosomes

Mitochondria appear in the greatest numbers in cells that are _____.

metabolically active

Taxol is a drug that can kill rapidly dividing cells. When taxol is added, cells are unable to complete mitosis. Taxol most likely affects the function of _____.

microtubules

A plant cell was grown in a test tube containing radioactive nucleotides, the parts from which DNA is built. Later examination of the cell showed the radioactivity to be concentrated in the _____.

nucleus

Chloroplasts are found in _____.

plant cells

What are the two main components of cell membranes?

proteins and lipids

Of the following organelles, which group is involved in manufacturing the substances needed by the cell?

ribosome, rough endoplasmic reticulum, smooth endoplasmic reticulum

A magnified picture of the detailed architecture of cell surfaces can best be obtained from a _____.

scanning electron microscope

You would expect a cell with an extensive Golgi apparatus to _____.

secrete a lot of material

Which of the following is a human cell with a flagellum? Selected:

sperm

The term "resolving power" refers to which of the following

the clarity of the image, revealing two objects as separate

Membrane proteins are synthesized by ribosomes that are attached to ______

the endoplasmic reticulum

Most of the DNA in a eukaryotic cell is in _____.

the nucleus

To enter or leave a cell, substances must pass through _____.

the plasma membrane

What is the advantage of the extensive infolding of the inner membrane of mitochondria?

to increase the surface area to maximize ATP production

What is the function of the nucleolus

to manufacture ribosomes