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Ch. 3 Test
| Question | Answer |
|---|---|
| Looking into a microscope, you notice cells swimming, propelled by a long tail. What cell structure must these cells have in order to be mobile? | flagella |
| Passive processes that move substances across membranes: | require no ATP |
| DNA replication takes place during: | interphase |
| The movement of substances through the cell membrane against their concentration gradient is a type of _____ process. | active |
| The purpose of ____ is to produce two genetically identical somatic cells. | mitosis |
| Which of the following is NOT a structural component of the nucleus? | Golgi apparatus |
| Which one of the following is NOT true about the plasma membrane? | it allows water soluble molecules to pass through easily |
| Nutrients and ions can pass directly from cell to cell through special membrane junctions known as: | gap junctions |
| The type of tissue consisting of cells embedded in an extracellular matrix is ________. | connective |
| Kari tore her Achilles (calcaneal) tendon during a recent track meet. She has injured: | dense connective tissue |
| Which of these characteristics best describes cardiac muscle tissue? | movement is involuntary and cells possess striations |
| The membrane connections that prevent the leaking of fluid between cells are called: | tight junctions |
| The movement of fluid through the cell membrane from a high pressure area to a lower pressure area is called: | filtration |
| The epithelial tissue found in areas subject to considerable friction and abuse, such as the esophagus or the skin, is: | stratified squamous epithelial |
| Type of passive process in which a protein membrane channel is used | facilitated diffusion |
| type of passive process in which water is moved through aquaporins | osmosis |
| type of active process in which the cell secretes vesicles | exocytosis |
| type of active process in which the cell eats and drinks | endocytosis |
| type of passive process in which molecules move through the plasma membrane | diffusion |
| The step, during protein synthesis, of assembling proteins by decoding the information in messenger RNA is called: | Translation |
| the type of tissue with a matrix consisting of rows of fibroblasts that manufacture collagen fibers is: | dense connective tissue |
| Which of the following represents a segment of RNA | AUGUCA |
| Osmosis transports water across membranes using: | aquaporins |
| Which of these cells are amitotic at maturity? | cardiac muscle cells |
| The hyrophobic tails of the plasma membrane promote osmosis. | false |
| Glands, such as the thyroid, that secrete their products directly into the blood rather than through ducts are classified as: | endocrine |
| Tendons and ligaments are common to this type of connective tissue called: | dense fibrous tissue |
| Ribosomes are found: | in the cytoplasm and on the rough endoplasmic reticulum |
| The type of muscle found in the walls of hollow organs, such as the stomach, and in the walls of blood vessels is: | smooth muscle |
| Fibrous tissue repair involves the formation of: | scar tissue |
| The matrix of hyaline cartilage consists of abundant collagen fibers hidden in a rubeery matrix. | true |
| Transcription is the stage in protein synthesis during which a complementary mRNA molecule is synthesized from a DNA template. | True |
| Which type of epithelial tissue is found lining kidney tubules? | simple cuboidal |
| Lysosomes are secreted by another organelle known as the: | Golgi apparatus |
| Epithelial tissue consisting of one layer of cells flattened like fish scales is called a ______ epithelium | simple squamous |
| Desmosomes are junctions that allow cell communication. | False |
| Which type of connective tissue is avascular? | cartilage |
| Which of the following is NOT classified as a connective tissue? | skeletal muscle |
| Two types of endocytosis are: | phagocytosis and pinocytosis |
| The portion of the cell's life cycle that does NOT involve cell division is known as: | interphase |
| The molecule that contains an anticodon is: | transfer RNA (tRNA) |
| The nucleotides of DNA join in a complementary way in which adenine pairs with_______, while cytosine pair with ______ | thymine, guanine |
| Many layers of cube-shaped cells should be termed _______ epithelial tissue | stratified cuboidal |
| The period of the cell cycle when the cell grows and performs its metabolic activities is: | interphase |
| Cellular material located outside the nucleus yet inside the plasma membrane is the: | cytoplasm |
| The type of epithelial tissue found lining organs of the digestive system such as the small intestines is the ________ | simple columnar |
| Which of the following statements is NOT part of the cell theory? | the human body is composed of 50-100 trillion cells |
| The three major components of the cytoplasm are the: | cytosol, organelles, and inclusions |
| ______ glands possess ducts that transport secretions onto epithelial surfaces. | exocrine |
| The specialized cellular compartments within the cytosol of the cell are collectively called: | chromatin |
| Sequences of three bases found in messenger RNA (mRNA) are called: | codons |
| Goblet cells are found in: | simple columnar epithelium |
| The molecule that carries an amino acid to the ribosome for incorporation into a protein is: | transfer RNA (tRNA) |
| The two locations for ribosomes in a cell are ____ and ______. | free in the cytoplasm |
| Pinocytosis and phagocytosis are types of both endocytosis and exocytosis. | False |
| Which type of tissue conducts electrochemical impulses? | nervous tissue |
| The DNA segment that carries information for building one protein or polypeptide chain is called a ______. | gene |
| The molecules that make the cell surface fuzzy, sticky, and sugar-rich are the: | glycoproteins |
| Protein synthesis occurs on the Golgi apparatus in the cell. | False |
| The greater the osmotic pressure, the greater the tendency of water to move into that area. | True |
| A patient arrives in the hospital extremely dehydrated. In order to fill his cells with fluid, what type of intravenous drip should he receive? | hypotonic |
| The type of connective tissue found in a fatal skeleton, the larynx, and connecting the ribs to the breastbone is ________. | hyaline cartilage |
| The type of muscle tissue that can be controlled voluntarily is called ______ muscle. | skeletal |
| Identify the type of tissue that is found in lymph nodes, the spleen, and bone marrow: | reticular connective tissue |
| What are the correct base-pairing rules for DNA? | adenine bonds to thymine and guanine bonds to cytosine |
| A solution that contains fewer solutes than the cell is: | hypotonic |
| A cell would plump with water and possible lyse in which of the following solutions? | hypotonic |
| The process of transcription: | transfers information from DNA into mRNA |
| The cell type found in nervous tissue is the _____. | neuron |
| Stratified epithelium consists of many layers of epithelial cells. | true |
| Which of the following do NOT involve the movement of molecules from an area of greater concentration to an area of lower concentration? | filtration |
| Cytokinesis is the division of the cytoplasm whereas mitosis is the division of the nucleus. | True |
| Smooth muscle cells are uninucleated spindle-shaped cells that are voluntary. | False |
| The passive process that involves the movement of water through aquaporins is ________: | osmosis |
| Intercalated discs found in cardiac muscle tissue are: | gap junctions |
| Which of the following would NOT be transported across a membrane using passive processes? | amino acids |
| type of tissue that composes the air sacs of the lungs and esophagus | epithelial tissue |
| type of tissue that can be simple or stratified | epithelial |
| type of tissue that can be classified as bone, blood, and cartilage | connective tissue |
| type of tissue that consists of neurons and neuroglia | nervous tissue |
| type of tissue that can be described as voluntary and involuntary | muscle tissue |
| type of tissue that is specialized to contract and produce movement | muscle tissue |
| type of tissue that has an apical surface and a basement membrane | epithelial tissue |
| type of tissue that contains collagen, elastic, and reticular fibers | connective tissue |
| type of tissue that consists of living cells surrounded by an extracellular matrix | connective tissue |
| type of tissue whose 2 functional characteristics are irritability and conductivity | nervous tissue |
| type of tissue that is avascular but regenerates rapidly | epithelial tissue |
| Chromatin and chromosomes are both composed of DNA | True |
| Fat is best described as: | adipose tissue |
| The nucleoplasm and cytosol make up the ______ fluid. | intracellular |
| The process of facilitated diffusion requires energy. | False |
| two separate daughter cells are produced | telophase |
| chromosomes align at the equator or midline | metaphase |
| spindle breaks down and disappears | telophase |
| centrioles separate and move toward opposite sides of the cell | prophase |
| nucleoli appear in each daughter cell | telophase |
| cytokinesis is completed | telophase |
| chromosomes separate and move to opposite ends of the cell | anaphase |
| chromosomes cluster and align at the center of the spindle | metaphase |
| nuclear envelope and nucleoid break down and disappear | prophase |
| A single layer of flattened cells would best be described as: | simple squamous |
| Which of the following is NOT considered a cytoplasmic organelle? | cytoplasm |
| If the sequence of nitrogenous bases in one strand of DNA and GTA-GCA, the sequence of bases on its complementary DNA strand would be: | CAT-CGT |
| The organelle that contains enzymes produced by ribosoes and packaged by the Golgi apparatus is the ______. | lysosome |
| Miotic spindles guide the separation of chromosomes. | True |
| The phospholipid tails are ______, which make the plasma membrane imermeable to water. | hydrophobic |
| Which of the following processes require the use of protein carrier molecules? | facilitated diffusion and solute pumping |
| A cancer drug interferes with the development of mitotic spindle fibers during cell division. Which phase is directly affected? | prophase |
| The tissue that is usually well vascularized and has an extensive extracellular matrix is called: | connective tissue |