5 Written Questions
5 Matching Questions
- cellular metabolism
- a The chemical activities of cells.
- 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 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.
- d An organelle found in plants and photosynthetic protists that absorbs sunlight and uses it to drive the synthesis of organic molecules (sugars) from carbon dioxide and water.
- e (1) An atom's central core, containing protons and neutrons. (2) The genetic control center of a eukaryotic cell.
5 Multiple Choice Questions
- A dense region of DNA in a prokaryotic cell.
- A type of cell that has a membrane-enclosed nucleus and other membrane-enclosed organelles. All organisms except bacteria and archaea are composed of eukaryotic cells.
- A membrane-enclosed sac occupying most of the interior of a mature plant cell, having diverse roles in reproduction, growth, and development.
- A protective layer external to the plasma membrane in plant cells, bacteria, fungi, and some protists; protects the cell and helps maintain its shape.
- 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.
5 True/False Questions
rough ER → A sac made of membrane in the cytoplasm of a eukaryotic cell.
electron microscope (EM) → 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.
micrograph → A photograph taken through a microscope.
nuclear envelope → A double membrane, perforated with pores, which encloses the nucleus and separates it from the rest of the eukaryotic cell.
extracellular matrix (ECM) → A substance in which the cells of an animal tissue are embedded; consists of protein and polysaccharides.