Exam 5: The Structure and Function of Large Biological Molecules

The following questions are based on the 15 molecules illustrated in the figure below. Each molecule may be used once, more than once, or not at all. -Which of the following molecules could be joined together by a peptide bond as a result of a dehydration reaction?

Changing a single amino acid in a protein consisting of 325 amino acids would

Use the following figure to answer the questions below. -If two molecules of the general type shown in the above figure were linked together, carbon-1 of one molecule to carbon-4 of the other, the single molecule that would result would be

What is the term used for a protein molecule that assists in the proper folding of other proteins?

Use the following information to answer the questions below. You have just had a breakfast of toast (high-fibre bread) with butter and jam (no added sugar) along with a glass of milk. -Which of the following statements concerning unsaturated fats is true?

What is the chemical reaction mechanism by which cells make polymers from monomers?

The molecular formula for glucose is C₆H₁₂O₆. What would be the molecular formula for a molecule made by linking three glucose molecules together by dehydration reactions?

Which of the following statements about the 5' end of a polynucleotide strand of DNA is correct?

If ¹⁴C-labelled uridine triphosphate is added to the growth medium of cells, what macromolecules will be labelled?

The following questions are based on the 15 molecules illustrated in the figure below. Each molecule may be used once, more than once, or not at all. -Which of the following molecules contain(s)an aldehyde type of carbonyl functional group?

The label on a container of margarine lists "hydrogenated vegetable oil" as the major ingredient. What is the result of adding hydrogens to vegetable oil?

What maintains the secondary structure of a protein?

Which of the following techniques uses the amino acid sequences of polypeptides to predict a protein's three-dimensional structure?

Which of these molecules is not formed by dehydration reactions?

One of the primary functions of RNA molecules is to

Which level of protein structure do the α helix and the β pleated sheet represent?

In a normal cellular protein, where would you expect to find a hydrophobic amino acid like valine?

What is the structural feature that allows DNA to replicate?

Which of the following polymers contain nitrogen?

Which of these classes of biological molecules consist of both small molecules and macromolecular polymers?