Chapter 5 Test Makeup

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?

C(60)H(102)O(51)

Which of the following best describes the flow of information in eukaryotic cells?

DNA, RNA, proteins

A molecule with the chemical formula C(16)H(32)O(6) is probably a

carbohydrate

What is the term used for a change in a protein's three-dimensional shape or conformation due to disruption of hydrogen bonds, disulfide bridges, or ionic bonds?

denaturation

The "a" helix and the "B" pleated sheet are both common polypeptide forms found in which level of protein structure?

secondary

The figure below best illustrates the

secondary structure of a polypeptide

A fat (or triacylglycerol) would be formed as a result of a dehydration reaction between

three molecules of 9 and one molecule of 10

Which of the following molecules could be joined together by a phosphodiester type of covalent bond?

11 and 12

Which of the following molecules is the pentose sugar found in RNA?

12

Which of the following molecules has (have) a functional group that frequently is involved in maintaining the tertiary structure of a protein?

2

which of the following molecules acts as building blocks (monomers) of polypeptides?

2,7, and 8

Which of the following molecules consists of a hydrophilic "head" region and a hydrophobic "tail" region?

5

Consider a polysaccharide consisting of 576 glucose molecules. The total hydrolysis of the polysaccharide would result in the production of

576 glucose molecules

Which of the following molecules is an amino acid with a hydrophobic R group or side chain?

7

Which of the following molecules could be joined together by a peptide bond as a result of a dehydration reaction?

7 and 8