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Anatomy

Chapter 3

QuestionAnswer
A specialized cell structure that propels the sperm is the flagellum
The presence of which substance in the cell membrane keeps it from breaking too easily? cholesterol
The fundamental organizational unity of life is the cell
Skin cells (epithelial) are held tightly together by desmosomes
The structure that separates the contents of a cell from the surrounding tissues is known as plasma membrane
Which organelle processes and packages material to be secreted golgi apparatus
The inner membrane of what double membrane structure is contorted into folds called cristae? mitochondrion
Projections from the cell that move materials and mucus are called cilia
The membranous sgructure containing substances that protect the cell from harm are lysosomes and peroxisomes
Which of the following is not true of the rough endoplasmic reticulum it makes lipids and carbohydrates
Tiny indentations of the plasma membrane that resemble caves are called caveolae
The largest human cell, measuring about 150um is a female sex cell or ovum
Which cell fiber serves as part of the our "cellular muscles?" microfilament
The __ is often called the microtubule organizing center centrosome
In the cell membrane, the hydrophilic part of the phospholipid molecule faces the exterior of the cell & faces the interior of the cell
The ID function of the cell membrane is carried out by the glycoprotein molecules
Granules or threads within the nucleus are called chromatin
Which of the following recognie and destroy nonslef cells immune cells
ATP production occurs within which organelle mitochondrion
The cell extension that assists epithelial cells in absorption is called microvilli
Which of the following is not true about ribosomes? surrounded by a membrane structure
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
Rafts are stiff grouping 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
Damage to the centrosomes and centrioles in a cell would have the greatest impact on which cell function? cell division
Which of the following organelles is considered a nonmembranous organelle? ribosome
A list of the cell fibers from largest to smallest would read microtubules, intermediate filaments, microfilaments
Which of the following is not a function of the integral membrane proteins? acting as receptors, signal transduction, ID of "self"
Which of the following is not a function of the smooth endoplasmic reticulum? Provides a site for ribosome attachment
The structur in cells that is associated with the enzymatic breakdown (digestion) of foreign material is the lysosome
The nucleolus is composed chiefly of rRNA
DNA is a major constituent of which cell organelle nucleus
Which organelles consist of vesicles that have pinched off the the golgi apparatus? lysosomes
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
Main cell structures include all of the following except interstitial fluid
Which are the organelles that allow for the recycling of amino acids in the cell? proteasomes
Created by: ktorres0506
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