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Biochemistry lab Quiz

A vibrant illustration representing biochemistry, featuring laboratory equipment, chemical structures, and buffer solutions in a colorful and visually engaging design.

Biochemistry Lab Quiz

Test your knowledge in biochemistry with this engaging quiz designed to challenge your understanding of buffer systems, enzymatic reactions, and key biochemical concepts. Perfect for students, educators, and biochemistry enthusiasts alike!

10 carefully crafted questions
Multiple choice format
Ideal for reinforcing your learning

10 Questions2 MinutesCreated by TestingChemist37

Which of the following we can obtain 3 buffering system

Ammonia

Phosphate

Acetate

Carbonate

What is the molar ratio for salt/acid required to prepare an acetate buffer at pH=5? Knowing that the ka for acetic acid is Ka=1.8×10^-5

1.78

1.78/1

1/1.78

All of the above

Which of the following buffering system is present in the our body

Carbon dioxide

Hemoglobin

H2CO3-

Non of the above

What does a represent, what does b represent, what is the volume need to reach the equivalent point (Answer the question respectively))

PH=pK , equivalence point , 25

PH=pK , equivalence point , 12.5

equivalence point , pH=pK , 25

equivalence point , pH=pK , 12.5

All of the following are characteristics of buffer system except:

It is an aqueous solution containing a weak acid and its conjugate base or a weak base and its conjugate acid

It is used to prevent any change in the pH of a solution

A buffer's pH don't changes at all when little amount of strong acid or base is added to it

Acetate is an example of buffering system

Carbonic acid and Bicarbonate ions are present in the blood in a ratio of

20:1

1:20

20:20

1:1

The enzyme needed for conversion of CO2 and H20 to carbonic acid is

Carbonic hydrolase

Carbonic transferase

Carbonic protease

Carbonic anhydrase

The buffer is an aqueous solution containing a weak acid and its conjugate acid or a weak base and its conjugate base

True

False

Which of the following is the best buffer system to make a solution with pH of 3.6

Acetate

Citrate

Formate

Phosphate

Which on of the following is the correct buffer equation

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