| Question | Answer |
| A list of the cell fibers from largest to smallest would read: | microtubules, intermediate filaments, microfilaments. |
| The membranous structure containing substances that protect the cell from harm are: | Peroxisomes and lysosomes. |
| Granules or threads within the nucleus are called: | chromatin. |
| Which of the following is not a function of the smooth endoplasmic reticulum? | Provides a site for ribosome attachment |
| Tiny indentations of the plasma membrane that resemble caves are called: | caveolae |
| Which cell fiber serves as part of our “cellular muscles? | Microfilament |
| Which organelle processes and packages material to be secreted? | Golgi apparatus |
| In the cell membrane, the hydrophilic part of the phospholipid molecule: | faces the exterior of the cell and faces the interior of the cell. |
| The nucleolus is composed chiefly of: | rRNA. |
| The inner membrane of what double-membrane structure is contorted into folds called cristae? | Mitochondrion |
| Which organelles consist of vesicles that have pinched off from the Golgi apparatus? | Lysosomes |
| The enzyme catalase is an important chemical in the functioning of the: | peroxisomes. |
| Skin cells (epithelial) are held tightly together by: | desmosomes |
| The structure that separates the contents of a cell from the surrounding tissue is known as: | plasma membrane. |
| Main cell structures include all of the following except: | interstitial fluid. |
| What is not true of the rough endoplasmic reticulum? | It makes lipids and carbohydrates. |
| The ____ is often called the microtubule organizing center. | centrosome |
| The structure in cells that is associated with the enzymatic breakdown (digestion) of foreign material is the: | Lysosome. |
| Rafts are stiff groupings of membrane molecules. What is their function? | Help organize the various components of the plasma membrane, Play an important role in the pinching of a parent cell into two daughter cells, and Sometimes allow the cell to form depressions that form a means of carrying substances into the cell |
| The barrier function of the plasma membrane is accomplished by the: | phospholipid bilayer. |
| Which of the following organelles is considered a non membranous organelle? | Ribosome |
| DNA is a major constituent of which cell organelle? | Nucleus |
| The cell extension that contains microfilaments is called: | Microvilli |
| The identification function of the cell membrane is carried out by the: | glycoprotein molecules. |
| A specialized cell structure that propels the sperm is the: | flagellum |
| Damage to the centrosome and centrioles in a cell would have the greatest impact on which cell function? | Cell division |
| Which of the following does not describe a structure or function of the proteasome? | Breaking down abnormal and misfolded proteins released from the ER, Looks like a hollow cylindrical drum made of protein subunits, and Requires the small protein called ubiquitin to pull proteins in |
| ATP production occurs within which organelle? | Mitochondrion |
| Projections from the cell that move materials and mucus are called: | cilia. |
| Which are the organelles that allow for the recycling of amino acids in the cell? | Proteasomes |
| Which of the following is not a function of the integral membrane proteins? | Acting as receptors, Signal transduction, and Identification of “self” |
| The cell extension that assists epithelial cells in absorption is called: | microvilli. |
| What recognizes and destroys nonself cells? | Immune cells |
| The fundamental organizational unit of life is the: | Cell. |
| Which of the following is not true about ribosomes? | Surrounded by a membrane structure |
