A buffer that is most effective at a pH of about 4.5 is;
Correct Answer: Acetate buffer.
Description: Ans. is 'a' i.e. Acetate BufferRef Guyton, 10/e, p349A buffer system is most effective when the pH of the system is near its pka valueLet's see the pka of the buffers given in the questionBufferPkaPhosphateBicarbonateAcetateTris 6.8 6.14.76 (Harper 25th/e p24) 8.3 (Harper 25th/ep23)* It's the acetate buffer which has its pka (4.76) value nearest to the pH of the system (4.5), hence it will be most effective at this pH.
Category:
Biochemistry
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now