6. (12.38) In an aqueous environment will the following peptide fragment more likely be buried inside a globular protein or located on its surface? Explain. NH–CH-C-NH-CH-C-NH-CH-C-NH-CH-C CH₂OH CH2 CH-CH-OH CH, C-NH2

Match the terms related to protein building.

Describe the four levels of protein structure. How do a proteins side groups influence its interactions with other substances? What happens when a protein is denatured?

Figure 3.5 What kind of sugars are these, aldose or ketose?

What materials can easily diffuse through the lipid bilayer, and why?

Figure 3.23 Which categories of amino acid would you expect to find on the surface of a soluble protein, and which would you expect to find in the interior? What distribution of amino acids would you expect to find in a protein embedded in a lipid bilayer?

Pathogenic E. coil have recently been shown to degrade tight junction proteins during infection. How would this provide an advantage to the bacteria?

If an extra nucleotide is inserted in the first exon of the beta globin gene, what effect will it have on the amino acid sequence of the globin polypeptides? Will the globin most likely be fully functional, partly functional, or nonfunctional? Why?

Arrange the following terms in order of increasing specialization: oligopotency, pleuripotency, unipotency, multipotency. multipotency, pleuripotency, oligopotency, unipotency pleuripotency, oligopotency, multipotency, unipotency oligopotency, pleuripotency, unipotency, multipotency pleuripotency, multipotency, oligopotency, unipotency

How is a condition such as diabetes a good example of the failure of a set point in humans?