1. Discuss how and why a plasma membrane lipid bilayer is fluid and what types of physical properties of the lipids contribute to the fluidity of the membrane. This should include a discussion of the different types of fatty acids and other lipids and environmental interactions that can change fluidity.

Using thermodynamic terms, describe the mechanism by which UDP-glucose is formed.

NADPH-reducing equivalents important for the biosynthesis of fatty acids come from several sources. Explain.

What is the role of CTP in the synthesis of a phospholipid?

What are the three stages of cholesterol synthesis?

1. Where do the typical IR absorption come for the following functional groups.

            Alcohol

            Alkyl

            Alkene

            Alkyne

            Aromatics

            Carboxylic acids

2.

Where do the typical IR absorption comes for amines?

Primary amines

Secondary amines

Tertiary amines

As hemoglobin is formed in the body, how does the heme coenzyme associate with this protein?

A. Hydrogen Bonds

B. They are covalently attached to the protein

C. They are a modified "R" group of a non-standard amino acid

D. Hydrophobic force

E. Coordination of the iron atom with the distal histidine residue

Biochemistry: Enzyme Units

Can relative activity be added together? For example, if fraction A has 0.2 U/mL and fraction B has 0.4 U/mL, will combining the two fractions produce a solution with a relative activity of 0.6 U/mL?

9. What are 2 important influences on enzymatic activity? What happens when these factors are significantly altered? Provide 2 examples of enzymes and the pH of the environment in which it works. Describe the effect of temperature on enzyme function.

Please type the answer. Thanks

1. Describe enzyme regulation: Direct vs Indirect, and each subtype. Describe what the regulatory molecules are, different names to describe each type of regulation (i.e. feedback regulation, allosteric regulation, etc.), and what types of reactions each are (catabolic or anabolic).