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5 Written questions

5 Matching questions

  1. Golgi apparatus
  2. microtubule
  3. flagellum
  4. crista
  5. extracellular matrix (ECM)
  1. a The thickest of the three main kinds of fibers making up the cytoskeleton of a eukaryotic cell; a straight, hollow tube made of globular proteins called tubulins. Microtubules form the basis of the structure and movement of cilia and flagella.
  2. b An organelle in eukaryotic cells consisting of stacks of membranous sacs that modify, store, and ship products of the endoplasmic reticulum.
  3. c A long cellular appendage specialized for locomotion. The flagella of prokaryotes and eukaryotes differ in both structure and function. Like cilia, eukaryotic flagella have a 9 + 2 arrangement of microtubules covered by the cell's plasma membrane.
  4. d 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.
  5. e A substance in which the cells of an animal tissue are embedded; consists of protein and polysaccharides.

5 Multiple choice questions

  1. One of a number of disk-shaped membranous sacs inside a chloroplast. Thylakoid membranes contain chlorophyll and the enzymes of the light reactions of photosynthesis. A stack of thylakoids is called a granum.
  2. An optical instrument with lenses that refract (bend) visible light to magnify images and project them into a viewer's eye or onto photographic film.
  3. An organelle containing enzymes that transfer hydrogen from various substrates to oxygen, producing and then degrading hydrogen peroxide.
  4. The fluid contained within the inner membrane of a mitochondrion.
  5. A double membrane, perforated with pores, which encloses the nucleus and separates it from the rest of the eukaryotic cell.

5 True/False questions

  1. endosymbiosisA process by which the mitochondria and chloroplasts of eukaryotic cells probably evolved from symbiotic associations between small prokaryotic cells living inside larger cells.

          

  2. micrographA photograph taken through a microscope.

          

  3. nucleoidA 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.

          

  4. cellular metabolismThe chemical activities of cells.

          

  5. plasma membraneA digestive organelle in eukaryotic cells; contains hydrolytic enzymes that digest the cell's food and wastes.