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Anatomy Week 3 Quiz
| Question | Answer |
|---|---|
| The largest human cell, measuring about 150 μm, is a: | female sex cell, or ovum. |
| Which cell fiber serves as part of our “cellular muscles?” | Microfilament |
| The identification function of the cell membrane is carried out by the: | Glycoprotein molecules |
| Which of the following is not a function of the smooth endoplasmic reticulum? | Provides a site for ribosome attachment |
| Skin cells (epithelial) are held tightly together by: | Desmosomes |
| 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; Requires the small protein called ubiquitin to pull proteins in (all of the above) |
| Which organelles consist of vesicles that have pinched off from the Golgi apparatus? | Lysosomes |
| The fundamental organizational unit of life is the: | cell |
| Which are the organelles that allow for the recycling of amino acids in the cell? | Proteasomes |
| Which of the following is not true of the rough endoplasmic reticulum? | It makes lipids and carbohydrates. (It is made of broad, flattened sacs and It has many ribosomes attached to it) |
| A specialized cell structure that propels the sperm is the: | Flagellum |
| A list of the cell fibers from largest to smallest would read: | microtubules intermediate filaments microfilaments. |
| 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; Sometimes allow the cell to form depressions that form a means of carrying substances into the cell. (all) |
| Damage to the centrosome and centrioles in a cell would have the greatest impact on which cell function? | Cell Division |
| The inner membrane of what double-membrane structure is contorted into folds called cristae? | Mitochondrion |
| Tiny indentations of the plasma membrane that resemble caves are called: | caveolae. |
| The presence of which substance in the cell membrane keeps it from breaking too easily? | Cholesterol |
| Main cell structures include all of the following except: | Interstitial Fluid; it does include organelles, plasma membrane, and cytoplasm. |
| Which cell extension lacks a central pair of microtubules, is not found in blood cells, and functions in the kidney to monitor urine flow? | Primary Cilium |
| The cell extension that contains microfilaments is called: | microvilli |
| The enzyme catalase is an important chemical in the functioning of the: | peroxisomes |
| The structure in cells that is associated with the enzymatic breakdown (digestion) of foreign material is the: | lysosome |
| Which of the following organelles is considered a nonmembranous organelle? | Ribosome |
| The membranous structure containing substances that protect the cell from harm are: | lysosomes and peroxisomes |
| The structure that separates the contents of a cell from the surrounding tissue is known as: | Plasma Membrane |
| The ____ is often called the microtubule organizing center. | centrosome |
| The nucleolus is composed chiefly of: | rRNA |
| Which of the following is not a function of the integral membrane proteins? | Acting as receptors, signal transduction, identification of self. (all) |
| The barrier function of the plasma membrane is accomplished by the: | Phospholipid Bilayer |
| DNA is a major constituent of which cell organelle? | Nucleus |
| Which of the following recognize and destroy nonself cells? | Immune Cells |
| Granules or threads within the nucleus are called: | Chromatin |
| Which organelle processes and packages material to be secreted? | Golgi Apparatus |
| Projections from the cell that move materials and mucus are called: | Cilia |
| ATP production occurs within which organelle? | Mitochondrion |
Created by:
Janelleu4771
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