Biochemistry Answers

 If carbohydrates are unavailable for cellular respiration, other organic molecules can be broken down and enter the cellular respiration process at the appropriate spot. Proteins can be broken down into a variety of amino acids. Some amino acids can be converted into glutamate which can then be converted into alpha-ketoglutarate. State which steps of the cellular respiration pathway, lead to the generation of the energy molecules. State the TOTAL number of ATP molecules the ONE of these converted alpha-ketoglutarate molecules can produce and explain how all the ATP molecules are generated.

A 1 liter solution is made by adding 0.6209 moles NaH2PO4 and 0.8581 moles Na2HPO4. What will be the final pH of this solution after addition of 1. 9717 ml of 3. 8914 molar HCl? The pka of sodium dihydrogen phosphate is 6.86.

A 1 liter solution is made by adding 0.6209 moles NaH2PO4 and 0.8581 moles Na2HPO4. What will be the final pH of this solution after addition of 1. 9717 ml of 3. 8914 molar HCl? The pka of sodium dihydrogen phosphate is 6.86.

A beaker contains a total concentration of 0.42 molar of weak acetic acid with pka = 2.21 and pH = 4.69. Calculate the percent of the undissociated form. Calculate answer to three decimal places, do not specify units in the answer.

A beaker contains a total concentration of 0 62 molar of weak acetic acid with pka = 3.97 and pH = 2.22. Calculate the molar concentration of the undissociated (AH) form. Calculate the answer to three decimal places, do not specify units in the answer.

What is the pH of a solution with a OH- concentration of 0.000810820000 molar? Calculate answer to two decimal places, do not specify units in the answer.

• What is an ATP molecule? Is it a Enzyme? Its co-factor? co-enzyme or prosthetic group? Yes? No? 
• How many ATP are equal to 1 NADH, NAHPH, FADH and FMNH2?
• What would happen if Adenine (A) is replaced with all three other DNA bases Cytosine (C), Guanine (G), and Thymine (T)? What would be the implications for bioenergetics of reactions that involve ATP hydrolysis.

What is the isoelectric point of each of the following peptides?

1. His-Ala-Tyr

2. Ala-Lys-His-Ala

1. Explain the features of the molecule represented in the structural diagram below. You must identify and describe each of the following:
2. Type of macromolecule and how you know
3. Functional groups present