Biochemistry Answers

Explain in general terms how cells obtain the energy to do cellular work

explain the second law of thermodynamics and why it is not violated by living organisms

Distinguish between the following pairs of terms: catabolic and anabolic pathways; kinetic and potential energy; open and closed systems; exergonic and endergonic reactions

1. Calculate the isoelectric point of glutamic acid. How does the isoelectric point of glutamic acid differ from glycine.
2. Illustrate the titration curve of lysine showing the cation, zwitterion and anion on the curve.

1. What is the hydrophobic effect? Explain.

2. Explain how the following terms are related: macromolecule, polymer & monomer.

3. Why are glucose, fructose and galactose isomers?

4. In what ways are lipids similar to and different from carbohydrates?

5. Compare and contrast a strand of DNA and a strand of RNA.

6. Explain why the Golgi apparatus is often described as the “post office” of the cell.

What is the hydrophobic effect?

There are three proteins which are functionally distinct, but at the same time two of them are able to bind DNA while third one is not. Name that specialized region/structure which is common to these two proteins. While there is one structural state/level of the proteins where all three of them cannot bind to DNA (are not functional) which one is that.

There are three proteins which are functionally distinct, but at the same time two of them are able to bind DNA while third one is not. Name that specialized region/structure which is common to these two proteins. While there is one structural state/level of the proteins where all three of them cannot bind to DNA (are not functional) which one is that

What kind of chemicals or factors can be used to break the intermolecular forces and disulfide bonds?

In tertiary structure, the hydrophobic amino acids tend to be:

A. Tucked away inside the protein.
B. Exposed on the outside of the protein.
C. Distributed randomly throughout the protein
D. All above