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5 Written questions

5 Matching questions

  1. What is biochemistry?
  2. What are the functions of DNA and RNA?
  3. Where are electrons, protons, and neutrons located within an atom?
  4. Distinguish between simple and complex carbohydrates.
  5. What are the general difference between an organic molecule and an inorganic molecule?
  1. a DNA: molecules store the information for protein synthesis.
    RNA: molecules use this information to construct specific protein molecules.
  2. b Organic: compounds have carbon and hydrogen.
    Inorganic: all other chemicals, chemicals that does not include both carbon and hydrogen atoms.
  3. c the nucleus of an atom.
  4. d Chemistry of living organisms, a field of life science.
  5. e Simple: sugars include monosaccharaides, disaccharides; straight chains or rings.
    Complex: polysaccharides are built of simple carbohydrates made of many bonded glucose molecules chains of sugars, cant digest.

5 Multiple choice questions

  1. The number of protons equals the number of electrons.
  2. Energy or atomic fragments they emit.
  3. Synthesis: when 2 or more atoms, ions, or molecules bond to form a more complex structure A+B->AB
    Decomposition: bonds of a reactant molecule break to form simpler molecules, atoms, or ions AB->A+B
    Exchange: parts of 2 different types of molecular trade positions as bonds are broken and new are formed AB + CD-> AD+ BC
    Reversible: product or products can change back to reactant or reactants A+B<-> AB
  4. tracks the number of decimal places in a hydrogen ion concentration without writing them out.
  5. Atoms that have the same atomic number but different atomic weight.

5 True/False questions

  1. Define electrolyte balance.The body regularly gains and loses these electrolytes, but they must be present in certain concentrations, both inside and outside cells, to maintain homeostasis.

          

  2. Explain the difference between saturated & unsaturated fats.Saturated: single carbon-carbon bond link all the carbon atoms; each carbon atom binds as many hydrogen atoms as possible & is thus saturated with hydrogen atoms.
    Unsaturated: have one or more double bond between carbon atoms. Fatty acids with one double bond.

          

  3. A hydrophilic molecule dissolved in....Water

          

  4. Identify the 4 levels of protein structure.Synthesis: when 2 or more atoms, ions, or molecules bond to form a more complex structure A+B->AB
    Decomposition: bonds of a reactant molecule break to form simpler molecules, atoms, or ions AB->A+B
    Exchange: parts of 2 different types of molecular trade positions as bonds are broken and new are formed AB + CD-> AD+ BC
    Reversible: product or products can change back to reactant or reactants A+B<-> AB

          

  5. Compare the chemical composition of carbohydrates, lipids, proteins, and nucleic acid.Acid: substance that releases hydrogen ion
    Base: substance that release ions that can combine with hydrogen ions
    Salt: substance formed by the reaction between and acid and a base.