Biochemistry: Enzymes and Isoenzymes

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Which of the following is NOT a source of AST?

Kidney (correct)

Muscle

Liver

Heart

Which acid phosphatase is inhibited by L-tartrate ions?

Acid Phosphatase of Pleural Cancer

Prostatic ACP

RBC ACP (correct)

Isoenzyme of Adenocarcinoma of the pancreas

A patient with De Ritis ratio > 1 may indicate:

Muscular dystrophy

Chronic alcoholism (correct)

Reye's syndrome

Acute hepatitis

Which enzyme is used as a surrogate test for hepatitis?

ALT Signup and view all the answers

Which enzyme breaks down glycogen and starch?

Amylase Signup and view all the answers

Which of the following is NOT a cause of increased amylase?

Hepatitis Signup and view all the answers

Which isoenzyme of aldolase is found in brain tissue?

Aldolase C Signup and view all the answers

What is the most sensitive marker of acute alcoholic hepatitis?

GGT Signup and view all the answers

Which enzyme deficiency can lead to drug-induced hemolytic anemia?

Glucose-6-Phosphate Dehydrogenase Signup and view all the answers

What is the primary source of GGT?

Biliary duct linings Signup and view all the answers

Which enzyme is increased in skeletal muscle disease?

Aldolase A Signup and view all the answers

What is the primary function of Glucose-6-Phosphate Dehydrogenase?

Neutralize peroxide Signup and view all the answers

What is the primary advantage of an angle rotor centrifuge over a swinging bucket centrifuge?

Faster sedimentation due to decreased air resistance Signup and view all the answers

What is the primary difference between air displacement and positive-displacement pipets?

Air displacement pipets operate by moving the piston in the pipet tip Signup and view all the answers

Which of the following analytes would likely increase in an individual after exercising?

Lactate dehydrogenase Signup and view all the answers

What is the purpose of a strobe light in a centrifuge?

To measure the speed of the centrifuge Signup and view all the answers

Why is a pipet's aspiration force important?

It allows for high-density sample pipetting Signup and view all the answers

Which of the following would decrease after exercising?

Glucose Signup and view all the answers