Biochemistry Answers

Draw the chemical structure of cholesterol and state its functions

Draw the chemical structure of the polypeptide. Indicate on the structure the backbone and peptide bonds

T= Tris

A= Glacial acetic acid

E= EDTA

B= Boric Acid

10x TAE Recipe

For 1L of 10x solution,

• 48.5 g tris

• 11.4 mL glacial acetic acid

• 20 mL 0.5M EDTA (pH 8.0)

TBE Buffer 10x Stock Recipe

• 108 g tris base

• 55 g boric acid

• 900 ml double-distilled H2O

• 40 ml 0.5 M EDTA solution (pH 8.0)

Adjust volume to 1 L find molarity

Iron reacts with atmospheric oxygen to form iron oxide or ferric oxide. Look at the chemical equation for this reaction:

Fe + O₂ → Fe₂O₃

This equation is unbalanced. Which of the following is the correct balanced equation for this reaction?

polysaccharides : iodine :: protein : _____

a large capacity bench top preparative centrifuge works in the rcf range of _______ while a high speed refrigerated centrifusion up to ____

____ of all diatomaceous supports in glc is necessary which is done by ____

Would the use of pH buffers help prevent muscle fatigue during exercise? 

What happens to amylose starch that is not fully hydrolyzed in the small intestine? What might be the clinical consequence? 

Why sweating in effective way to cold the body

The human hemoglobin is a tetrameric protein of about 64.5 KDa, consisting of two α-

chains and two β-chains tightly bound.

a) Calculate the number of amino acids present in the α-chains

b) What is the length of each β-chain?

c) What is the sum of the length of the two α-chains?

d) Find the length of the tetrameric protein hemoglobin assuming its all an alpha