Download Section: Organic and Biochemical Compounds

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Assessment
Quiz
Section: Organic and Biochemical Compounds
In the space provided, write the letter of the term or phrase that best completes
each statement or best answers each question.
_____ 1. All organic compounds must contain the element
a. oxygen.
c. nitrogen.
b. hydrogen.
d. carbon.
_____ 2. The atoms in organic molecules are held together by ____________
bonds.
a. hydrogen
c. ionic
b. covalent
d. metallic
_____ 3. The atoms of propane are held together by ____________ bonds.
a. single
c. triple
b. double
d. ionic
_____ 4. A chemical formula with the pattern CnH2n+2 must represent a(n)
a. alkene.
c. alkane.
b. alcohol.
d. polymer.
_____ 5. Ethene differs from ethane in that it has a
a. single bond.
c. triple bond.
b. double bond.
d. quadruple bond.
_____ 6. An alcohol must contain a(n)
a. double bond.
b. –OH group.
c. triple bond.
d. –COOH group.
_____ 7. Polypropylene would be called a(n) ____________ because it contains
a repeating pattern of propylenes.
a. alkane
c. polymer
b. alkene
d. alcohol
_____ 8. A ____________ is a polymer that contains many different molecules
of amino acids.
a. glucose
c. DNA
b. protein
d. methane
_____ 9. The polymer ____________ determines your genetic makeup.
a. carbohydrate
c. DNA
b. glucose
d. methane
_____ 10. A polymer of sugar molecules is called a(n)
a. carbohydrate.
c. DNA.
b. amino acid.
d. protein.
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Holt Science Spectrum
19
The Structure of Matter