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Chemistry: Organic Chemistry & Biochemistry Flashcards

7 cards from real AP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Chemistry: Organic Chemistry & Biochemistry flashcards as text

  1. Which nitrogenous base is found in RNA but NOT in DNA?

    Answer: Uracil

    RNA uses uracil in place of the thymine found in DNA.

  2. A chiral carbon is one bonded to:

    Answer: Four different groups

    A chiral (stereogenic) center has four different substituents, allowing non-superimposable mirror images.

  3. Which functional group is present in aldehydes?

    Answer: Terminal C=O with H

    Aldehydes have a carbonyl group at the end of a chain bonded to a hydrogen.

  4. Saponification produces soap from fats using:

    Answer: A base

    Saponification is base-catalyzed hydrolysis of triglycerides into soap and glycerol.

  5. Which level of protein structure refers to alpha helices and beta sheets?

    Answer: Secondary

    Secondary structure describes local folding into helices and sheets via hydrogen bonds.

  6. The reaction joining two monomers with loss of water is called:

    Answer: Condensation

    Condensation (dehydration synthesis) links monomers while releasing a water molecule.

  7. Which of these is an aromatic hydrocarbon?

    Answer: Benzene

    Benzene's delocalized ring of pi electrons makes it the classic aromatic compound.