Exam 3: Carbon and the Molecular Diversity of Life

Which of the following is true of both starch and cellulose?

Which of the following hydrocarbons has a double bond in its carbon skeleton?

A chemist wishes to make an organic molecule less acidic. Which of the following functional groups should be added to the molecule in order to do so?

Why are hydrocarbons insoluble in water?

A nucleotide is composed of

Figure 3.3 -Which of the structures illustrated in Figure 3.3 is an impossible covalently bonded molecule?

If cells are grown in a medium containing radioactive 32P, which of these molecules will be radioactively labeled?

Which of the following chemical equations describes a dehydration reaction?

Which type of interaction stabilizes the α helix and the β pleated sheet structures of proteins?

Which chemical group is most likely to be responsible for an organic molecule behaving as a base (see Concept 2.5)?

Figure 3.12 -At which bond in Figure 3.12 would water need to be added to achieve hydrolysis of the dipeptide, back to its component amino acids?

When carbon forms single covalent bonds with four other atoms, the atoms joined to the carbon form a

Large organic molecules are generally synthesized by polymerization of a few types of simple subunits. Which of the following is an exception to this statement?

A carbon atom is most likely to form which of the following bonds with other atoms?

If cells are grown in a medium containing radioactive 35S, which of these molecules will be radioactively labeled?

Which of the following chemical equations describes a hydrolysis reaction?