Exam 5: The Structure and Function of Large Biological Molecules

A new organism is discovered in the forests of Costa Rica. Scientists there determine that the polypeptide sequence of hemoglobin from the new organism has 72 amino acid differences from humans, 65 differences from a gibbon, 49 differences from a rat, and 5 differences from a frog. These data suggest that the new organism

A molecule with the chemical formula C6H12O6 is probably a

Which of the following is True regarding saturated fatty acids?

Which type of interaction stabilizes the alpha (α)helix and the beta (β)pleated sheet structures of proteins?

The following questions are based on the 15 molecules illustrated in Figure 5.8. Each molecule may be used once, more than once, or not at all. -Which molecule is a saturated fatty acid?

The following questions are based on the 15 molecules illustrated in Figure 5.8. Each molecule may be used once, more than once, or not at all. -The molecular formula for glucose is C₆H₁₂O₆. What would be the molecular formula for a polymer made by linking ten glucose molecules together by dehydration reactions?

Figure 5.4 -What is the structure shown in Figure 5.4?

Which of the following best summarizes the relationship between dehydration reactions and hydrolysis?

For this pair of items, choose the option that best describes their relationship. (A)The number of cis double bonds in saturated fatty acids (B)The number of cis double bonds in unsaturated fatty acids

Misfolding of polypeptides is a serious problem in cells. Which of the following diseases are associated with an accumulation of misfolded proteins?

In the double helix structure of nucleic acids, cytosine hydrogen bonds to

The following questions are based on the 15 molecules illustrated in Figure 5.8. Each molecule may be used once, more than once, or not at all. -Which of the following molecules contains a glycosidic linkage type of covalent bond?

Which of the following is not a polymer?

The following questions are based on the 15 molecules illustrated in Figure 5.8. Each molecule may be used once, more than once, or not at all. -The structural level of a protein least affected by a disruption in hydrogen bonding is the

The following questions are based on the 15 molecules illustrated in Figure 5.8. Each molecule may be used once, more than once, or not at all. -Which of the following statements concerning unsaturated fats is True?

The following questions are based on the 15 molecules illustrated in Figure 5.8. Each molecule may be used once, more than once, or not at all. -Which of the following combinations could be linked together to form a nucleotide?

Figure 5.1 -Which of the following descriptors is True of the molecule shown in Figure 5.1?

Refer to Figure 5.6 to answer the following questions. -Which bond is a peptide bond?

The following questions are based on the 15 molecules illustrated in Figure 5.8. Each molecule may be used once, more than once, or not at all. -Which of the following molecules is an amino acid with a hydrophobic R group or side chain?

The following questions are based on the 15 molecules illustrated in Figure 5.8. Each molecule may be used once, more than once, or not at all. -Which of the following molecules is the pentose sugar found in RNA?