5 Written questions
5 Matching questions
- a Everything inside a cell between the plasma membrane and the nucleus; consists of a semifluid medium and organelles.
- b An infolding of the inner membrane of a mitochondrion in which is embedded the electron transport chain and the enzyme catalyzing the synthesis of ATP.
- c An organelle in eukaryotic cells where cellular respiration occurs. Enclosed by two concentric membranes, it is where most of the cell's ATP is made.
- d A structure within the nucleus of a eukaryotic cell where ribosomal RNA is made and assembled with proteins imported from the cytoplasm to make ribosomal subunits.
- e A sac made of membrane in the cytoplasm of a eukaryotic cell.
5 Multiple choice questions
- A macromolecule consisting of one or more polypeptides linked to short chains of sugars.
- A protective layer external to the plasma membrane in plant cells, bacteria, fungi, and some protists; protects the cell and helps maintain its shape.
- A microscope that uses an electron beam to study the surface architecture of a cell or other specimen.
- An organelle containing enzymes that transfer hydrogen from various substrates to oxygen, producing and then degrading hydrogen peroxide.
- The chemical activities of cells.
5 True/False questions
microfilament → The thinnest of the three main kinds of protein fibers making up the cytoskeleton of a eukaryotic cell; a solid, helical rod composed of the globular protein actin.
centriole → A sac made of membrane in the cytoplasm of a eukaryotic cell.
endoplasmic reticulum (ER) → An instrument that focuses an electron beam through, or onto the surface of, a specimen. An electron microscope achieves a hundredfold greater resolution than a light microscope.
chromosome → A threadlike, gene-carrying structure found in the nucleus of a eukaryotic cell and most visible during mitosis and meiosis; also, the main gene-carrying structure of a prokaryotic cell. Chromosomes consist of chromatin, a combination of DNA and protein.
micrograph → A photograph taken through a microscope.