Organic Chemistry 1b - Test 3

1. Which most aptly describes a grease?

    A. an ester
    B. a heavy metal salt
    C. a fatty acid
    D. a glyceride

2. The vigorous oxidation of a primary alcohol produces:

    A. an aldehyde
    B. an ether
    C. an acid
    D. a ketone

3. The difference between hard and soft detergents is:

    A. hydrocarbon chain branching
    B. hydrocarbon chain length
    C. nature of functional group
    D. nature of metal in the salt

4. Which of the following drugs are excreted largely in the urine, in unchanged form?

    A. barbiturates
    B. hallucinogens
    C. amphetamines
    D. analgesics

5. The practice of refining wheat, and polishing rice, leads to:

    A. an increase of mercury
    B. a decrease in zinc
    C. a decrease in cadmium compounds
    D. an increase in lead consumption

6. One function of vitamins in the body is to:

    A. activate enzymes
    B. act as enzymes
    C. form small polypeptides
    D. hydrolyze lipids

7. Hydrolysis of the pyrophosphate bonds of ATP proceeds with:

    A. a large negative free energy change
    B. a large positive free energy change
    C. little free energy change
    D. a large decrease in entropy

8. A high-energy molecule in which most of the available energy in living cells is stored is:

    A. carbon dioxide
    B. glucose
    C. starch
    D. adenosine triphosphate

9. Polysaccharides are:

    A. chains of nucleotides
    B. chains of amino acids
    C. chains of sugars
    D. chains of lipids

10. Which of the following chemotherapeutic agents contains highly toxic arsenic?

    A. Penicillin
    B. Sulfa drugs
    C. Salvarsan
    D. Tetracyclines

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