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5 Written questions

5 Matching questions

  1. Identify the 4 levels of protein structure.
  2. What is a molecular formula? A structural formula?
  3. What is a buffer?
  4. What is atomic radiation?
  5. Describe two ways that atoms may combine with other atoms.
  1. a Two atoms of hydrogen can combine with one atom of oxygen to produce a molecule of the compound water.
    Atoms of the same element combine, they produce molecules of that element.
  2. b Primary, Secondary, Tertiary, Quaternary
  3. c Molecular: consists of the symbols of the elements in the molecule with numerical subscripts that indicate how many atoms of each element are present.
    Structural: representation of the way atoms bond in a molecule.
  4. d they are chemicals that resist pH change. They combine with hydrogen ions when these ions are in excess or they donate hydrogen ions when these ions are depleted.
  5. e Energy or atomic fragments they emit.

5 Multiple choice questions

  1. Electrolyte: substance that ionizes in a water solution
    Nonelectrolyte: organic compounds that dissolve in water, usually do not release ions.
  2. All proteins have a special shape and their shape determines what function they will perform. Proteins can become denatured or their shape can change and it'll cause the loss of function. Proteins exposed to heat will most likely become denatured and lose the ability to perform their task.
  3. Ions: atom or molecule with an electrical charge.
    Polar: molecule in which the electrons and protons are not distributed symmetrically.
  4. Water
  5. 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.

5 True/False questions

  1. List 3 main types of lipids found in cells.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

          

  2. Why is a knowledge of chemistry essential to understanding physiology?Molecular: consists of the symbols of the elements in the molecule with numerical subscripts that indicate how many atoms of each element are present.
    Structural: representation of the way atoms bond in a molecule.

          

  3. What does the pH scale measure?Chemistry of living organisms, a field of life science.

          

  4. What is biochemistry?Chemistry of living organisms, a field of life science.

          

  5. Where are electrons, protons, and neutrons located within an atom?the nucleus of an atom.