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5 Written questions

5 Matching questions

  1. functional groups
  2. Isotopes
  3. Endoplasmic Reticulum (Eukaryotic cells)
  4. Eukaryotic Cells
  5. Lipids
  1. a elements with the same atomic number, different mass numbers.
  2. b 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
  3. c are parts of a molecule that participate in a chemical reaction
  4. d 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. e have a membrane that surrounds nuclear material
    Components: Nucleus, Cytoplasm, Organelles, hydrophilic heads, hydrophobic tails,

5 Multiple choice questions

  1. some molecules have charged areas - this makes them polar. Polar areas of molecules can bond with polar areas of other molecules to form weak bonds called hydrogen bonds, hydrogen bonds make water cohesive
  2. 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.
  3. single 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. determine chemical properties of atoms = how it will react (bond) with other atoms
  5. Protons, Neutrons, electrons (subatomic particles).

5 True/False questions

  1. Hydrocarbons=molecules of carbon + hydrogen

          

  2. Ionic bondssome molecules have charged areas - this makes them polar. Polar areas of molecules can bond with polar areas of other molecules to form weak bonds called hydrogen bonds, hydrogen bonds make water cohesive

          

  3. RNAforms our genes,

          

  4. Ribosomes (Eukaryotic cells)hydrolytic enzymes are manufactured by the ER sent to the Golgi for finishing and repackaging in sacs called _________, ___________ merge with food vacuoles to digest food or destroy invading organisms -Abnormal __________ can cause diseases include Tay-Sachs - inability to break down lipids resulting in damage to nerves and brain

          

  5. Elementsdetermine chemical properties of atoms = how it will react (bond) with other atoms