1. What volume of each of the following acids will react completely with 70.00 mL of 0.200 M NaOH  ?

a) 0.250 M HCL

b) 0.200 M HNO3

c) 0.100 M HC2H3O2 (1 acidic hydrogen)

2. A 22.26-mL sample of hydrochloric acid solution requires 35.00 mL of 0.115 M sodium hydroxide for complete neutralization. What is the concentration of the original hydrochloric acid solution?

38: Critic acid cycle intermediates are always being removed for various reasons but the cycle does not run out of intermediates and stop. This is because we can always make intermediates: WE CAN ALWAYS MAKE INTERMEDIATES FOR CITRIC ACID CYCLE FROM?

A. from acetyl-CoA

B. from even chain fatty acids

C. from the catabolism of heme in the spleen

D. using anaplerotic reactions

63. Which of the following is an omega 3 fatty acid?

A.   18:0

B.   18:3 Δ^9,12,15  

C.   16:1 Δ⁹

D.   18:2 Δ^9,12

E.   20:4 Δ^5,8,11,14

64. Which of the following is an essential fatty acid?

A.   lauric acid

B.   oleic acid

C.   linoleic acid

D.   linolenic acid

E.   both C and D are essential fatty acids.

Given the following acids or bases. 1) H2PO4 -2 2) CH3NH3 a. Write the reactions for each of the above b. Write the K expressions for the reactions and look up the K for each of the above. c. What is the conjugate of each of the above? (there may be more than one) d. Write the reaction for the conjugate interacting with water. e. Write the K expressions for the reactions that involves the conjugate and calculate the value of the K.

To enhance gluconeogenesis using acetyl CoA from the oxidation of fatty acids, the normal TCA cycle is turned off by phosphorylation of ___ and the glyoxylate cycle is turned on, instead. This cycle uses two acetyl-CoA to produce one ___ , which is also substrate for gluconeogenesis.

Select one:

a. isocitrate dehydrogenase ; oxaloacetate

b. isocitrate lyase ; citrate

c. isocitrate dehydrogenase ; citrate

d. isocitrate lyase ; oxaloacetate

e. None of these

Select all traits listed below that are shared between prokaryotic Archaea and eukaryotes, but NOT between Archaea and Bacteria.

5. A primary standard is a reagent that is extremely pure, stable, has no waters of hydration, and has a high molecular weight. One such standard commonly known as TRIS or THAM is tris(hydroxymethyl) amino methane, (CH2OH)3 CNH2. How many grams of salt will be required to titrate 25.0 mL of 0.10 M HCL solution?

(CH2OH)3 CNH2 (aq) + HCL (aq) ---> (CH2OH)3 CNH3^+CL^-(aq)

For biochemistry, it asks "At what optimal pH can you separate an amino acid mixture of lysine, arginine, and cysteine" and the answer is 9.5

Then it asks for the net charge of arginine at the chosen pH. The answer came out as 0.24, which I have no idea how it got there. My question is how do you do this? This is the info i have:

pKa of COOH = 2.2

pKa of NH3+ = 9.0

pKa of R group = 12.5

1. If a cell cannot properly create DNA polymerase which step of replication would this cell be incapable of performing? Explain why

2. It is possible to compare transcription to a race car moving along a track. In transcription which units or structures would be analogous to the following: the car, a green light, the track, and a stop sign?

3. Describe the relationship between the sequence of the mRNA molecule and the amino acid sequence of the resulting protein.