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Brandi Sizemore
Week 3 Anatomy 2021
| Question | Answer |
|---|---|
| A spherical membrane-bound structure that contains the genetic material of the cell and is often referred to as the "command center" of the cell is the | nucleus. |
| Which area of the cytoplasm near the nucleus coordinates the building and breaking of microtubules in the cell? | centrosome. |
| Which of the following is not a cytoskeleton element? | centriole |
| The inside of the cell is composed largely of a gel-like substance called | cytoplasm. |
| This membranous organelle contains oxidase and catalase enzymes. | peroxisome |
| In the matrix of the plasma membrane, a variety of proteins are embedded. Some of these proteins serve as passageway for Na+ ions or glucose. These proteins are called | transport proteins. |
| Often referred to as the "power plant" of the cell, which organelle is the site of ATP production? | mitochondrion |
| The outer boundary of a human cell is called the | plasma membrane |
| Which of the following cytoskeleton elements are the largest in diameter? | microtubules |
| Phospoholipids of the plasma membrane are arranged | as a bi-layer with their non-polar tails sandwiched between the polar heads. |
| This membranous organelle is the site of protein synthesis for proteins that are secreted by the cell. | rough endoplasmic reticulum |
| Which type of junction is formed when membrane channels of adjacent plasma membranes adhere to each other? | Gap Junction |
| This organelle is characterized by folded membranes called cristae. | Mitochondria |
| A major function of the cell membrane is to | control what enters and leaves the cell. |
| This organelle primarily modifies products from the rough ER and it resembles a stack of hollow saucers, one cupped inside the next. | Golgi apparatus |
| The plasma membrane is composed of all of the following except | tubulin protein. |
| Ribsomes may be either free within the cytoplasm or bound to a membrane system known as the | rough endoplasmic reticulum. |
| Which of the following statements about integral proteins in the plasma membrane is false? | They are more abundant by volume than the membrane phospholipids. |
| Which of the following is a type of cell extension that lines the intestines and other areas of the body? | microvilli |
| This organelle is primarily a sac of powerful digestive enzymes called acid hydrolases. | lysosome |
| Cisternae of this organelle are continuous with the nuclear envelope. | rough endoplasmic reticulum |
| Of the following, the only organelle that has a double membrane structure is the | mitochondrion. |
| Ribosomes are organelles that | float in the cytoplasm and attach to the endoplasmic reticulum. |
| This organelle has both a "cis" and a "trans" face. | Golgi apparatus |
| This organelle is numerous in liver and kidney cells. | peroxisome |
| Which letter indicates the nucleolus? | A |
| Which letter indicates the Golgi apparatus? | D |
| Which letter indicates the mitochondrion? | E |
| Which letter indicates the rough endoplasmic reticulum? | C |
| Which letter indicates the plasma membrane? | B |
| 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. - face the interior of the cell. |
| The identification function of the cell membrane is carried out by the | glycoprotein molecules. |
| The enzyme catalase is an important chemical in the functioning of hte | peroxisomes. |
| The largest human cell, measuring about 150um, is a | female sex cell or ovum. |
| The membranous structure containing substances that protect the cell from harm are | - lysosomes - peroxisomes |
| Which are the organelles that allow for the recycling of amino acids in the cell? | Proteasomes |
| Which of the following recognize and destroy non-self cells? | Immune cells |
| 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 |
| Which of the following is not true of the rough endoplasmic reticulum? | It makes lipids and carbohydrates. |
| The inner membrane of what double-membrane structure is contorted into fold called cristae? | Mitochondrion |
| The presence of which substance in the cell membrane keeps it from breaking too easily? | Cholesterol |
| Projections from the cell that move materials and mucus are called | cilia |
| 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. |
| Which of the following is not a function of the integral membrane proteins? | -Acting as receptors -Signal transduction -Identification of "self" |
| Which of the following is not a function of the smooth endoplasmic reticulum? | Provides a site for ribosome attachment. |
| The cell extension that contains microfilaments is called | microvilli |
| Which of the following organelles is considered a non-membranous organelle? | Ribosome |
| DNA is a major constituent of which cell organelle? | Nucleus |
| The _______ is often called microtubule organizing center. | centrosome |
| Tiny indentifications of the plasma membrane that resembles caves are called | caveolae. |
| The barrier function of the plasma membrane is accomplished by the | phospholipid bilayer |
| 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. |
| A specialized cell structure that propels the sperm is the | flagellum. |
| Which of the following is not true about ribosomes? | Surrounded by a membrane structure. |
| 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. |
| Granules or threads within the nucleus are called | chromatin. |
| The structure in cells that is associated with the enzymatic breakdown (digestion) of foreign material is the | lysosome. |
| The cell extension that assists epithelial cells in absorption is called | microvilli. |
| Which cell fiber serves as part of our "cellular muscles?" | Microfilament |
| Damage to the centrosome and centrioles in a cell would have the greatest impact on which cell function? | Cell division |
| Which organelles consist of vesicles that have pinched off from the Golgi apparatus? | Lysosomes |
| ATP production occurs within which organelle? | Mitochondrion |
Created by:
Brandi Sizemore
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