Cells and Tissues

    Cells and Tissues
    Which of the following cells are found in the lungs?
    “Pneumo” comes from the Greek for lung or air. The other cells are found in the blood, epidermis and testicles, respectively.
    Author: rikazzz Comment
    Cells and Tissues
    Which of the following is the correct combination of the components for the nucleic acid DNA?
    DNA has the sugar deoxyribose; proline is an amino acid that does not occur in DNA.
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    Cells and Tissues
    Which of the four types of tissue do all organs contain?
    All organs have capillaries and a blood supply. Blood is a connective tissue, and capillaries are made of epithelial tissue; the arterial end of capillaries has a precapillary sphincter which is made of smooth muscle cells. All organs are innervated so they contain nervous tissue.
    Author: rikazzz Comment
    Cells and Tissues
    Which of the following cells would be found in connective tissue?
    Chondro- refers to cartilage, so chondrocytes are cells found in cartilage. Cartilage is a connective tissue. The other choices are found in epithelial tissue, or nervous tissue.
    Author: rikazzz Comment
    Cells and Tissues
    Which organelle is the site of ATP production?
    The mitochondria are where ATP is produced.
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    Cells and Tissues
    Which of the following is NOT a type of cell?
    A ribosome is a cell organelle, not a cell type.
    Author: rikazzz Comment
    Cells and Tissues
    Which one of the following cell types is found in epithelial tissue?
    Keratinocytes produce keratin, the protein of the epidermis, which is epithelial tissue.
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    Cells and Tissues
    The plasma membrane of a cell contains molecules that have a hydrophobic end and a hydrophilic end. What are they called?
    The phosphate end is hydrophilic (water soluble), while the lipid end is hydrophobic (insoluble in water).
    Author: rikazzz Comment
    Cells and Tissues
    The combination of a sugar, a base and at least one phosphate group is given the general term of:
    A nucleoside is a nucleotide without a phosphate group.
    Author: rikazzz Comment
    Cells and Tissues
    The resting membrane potential of a cell is the consequence of which of the following concentrations of ions?
    These ionic species are largely responsible for the membrane potential (cations are negative ions). While there is a higher concentration of Ca outside the cell than inside, there are fewer Ca than Cl ions.
    Author: rikazzz Comment