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Anatomy Week 3 Quiz

QuestionAnswer
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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