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5 Written questions

5 Matching questions

  1. Endoplasmic Reticulum (Eukaryotic cells)
  2. protein
  3. functional groups
  4. Endomembrane system (Eukaryotic cells)
  5. Golgi Apparatus (Eukaryotic cells)
  1. a are parts of a molecule that participate in a chemical reaction
  2. b receives packages such as transport vesicles on one side, modifies products, then repackages in new transport vesicles for other sites
  3. c small nitrogen containing molecules, amino acids, are joined to form dipeptides which are joined to form polypeptides which may be joined to other polypeptides to from proteins. Proteins have unique 3 dimensional shapes or configurations that enable them to function as enzymes to catalyze reactions and function in other active ways.
  4. d a system of interconnected membranes that run throughout the cell for synthesis, storage, and transport of products
  5. e a biosynthetic factory, two forms, smooth and rough - Rough - studded with ribosomes, small RNA structures where proteins are manufactured, Smooth - lack ribosomes, wall contains enzymes that make phospholipids, steroids, fatty acids, detoxify poisons, and store minerals used for muscle contraction -________ packages products in tiny sacs called transport vesicles that bud-off

5 Multiple choice questions

  1. reads the genes and helps make proteins
  2. lack a membrane enclosed nucleus
    Nucleoid region, Ribosomes, Plasma membrane, Cell wall, Capsule, Pili, Flagella
  3. number of protons
  4. = glycerol + fatty acid.
    are another source of energy but some may contribute to heart disease. Most plant __ are unsaturated oils and most animal __ are saturated.
  5. these are non-polar, hydrocarbons, which are composed of fat molecules. Fat = glycerol + fatty acid. _______ are 1) important components of cell membranes (phospho_______), 2) molecules (steroids) that regulate cell function, and 3) molecules (waxes) that protect other cells

5 True/False questions

  1. Covalent bondsstrong bonds where atoms share electrons - two or more atoms held together by a covalent bond are called a molecule


  2. Levels of OrganizationPrimary structure = sequence of amino acids
    Secondary structure = coiling to form an alpha helix or folding to form a pleated sheet - hydrogen bonding may be involved
    Tertiary structure - Overall, 3 - D shape, usually described as fibrous or globular
    Quaternary structure - many proteins have multiple peptide chains or subunits - how these fit together is called quaternary structure


  3. Common Features of lifesingle sugar units such as glucose (= a monosaccharide) are joined to form disaccharides such as maltose which can be joined to other sugars to form polysaccharides such as starch (plants) or glycogen (animals), cellulose is a large polysaccharide made by plants that is not easily broken down, chitin is a polysaccharide used by insects to build their exoskeleton - ________ are important sources of energy, and for building structures in plants and animals


  4. ElectronsCombine to form compounds. Are formed of atoms.


  5. Mitochondria (Eukaryotic cells)found in plants and animals, chemical energy in food such as sugars is converted to an energy source useable in cells called ATP, ___________ have a membrane, an intermembrane space and matrix. Reactions take place in the matrix