Biochemistry And Clinical Pathology — Part 1 MCQs with Explanations

Phenylalanine is an essential amino acid, meaning it cannot be synthesized by the body and must be obtained through diet. Tyrosine, while important, is a non-essential amino acid because the body can synthesize it from phenylalanine. Alanine is a non-essential amino acid as the body can produce it on its own. Arginine is conditionally essential, meaning it is required in specific conditions, such as during growth or illness, but not always essential for all individuals.

Haemoglobin is a protein with a quaternary structure. Quaternary structure refers to the complex assembly of multiple polypeptide chains into a single, functional protein. Haemoglobin consists of four polypeptide chains, two alpha chains and two beta chains, which work together to carry oxygen in the blood. Option A: Chymotrypsin Chymotrypsin is an enzyme that has a tertiary structure, meaning it consists of a single polypeptide chain folded into a three-dimensional shape. It does not have a quaternary structure. Option C: Insulin Insulin is a hormone that consists of two polypeptide chains (A and B) linked by disulfide bonds. While it has more than one chain, it is not typically considered to have a quaternary structure in the same way as proteins like haemoglobin. Option D: Myoglobin Myoglobin is a protein with a tertiary structure, composed of a single polypeptide chain. It does not have a quaternary structure. Conclusion: Among the given options, Haemoglobin is the only protein with a quaternary structure, making it the correct answer.

Aminotransferases is the correct answer to “The necessary coenzyme for transamination reactions is”. This question is standard in competitive examination syllabi for Biochemistry And Clinical Pathology.

Anisocytosis is the correct answer to “A common term used for an increased variation in cell size of erythrocytes is known as . . . . . . . .”. This question is standard in competitive examination syllabi for Biochemistry And Clinical Pathology.

Pyridoxine deficiency is the correct answer to “Dermatitis, diarrhoea & dementia are characteristics of”. This question is standard in competitive examination syllabi for Biochemistry And Clinical Pathology.

Casein is the correct answer to “The milk of the cow, contain which protein”. This question is standard in competitive examination syllabi for Biochemistry And Clinical Pathology.

ATP is the correct answer to “Chemical energy at the cellular level is in the form of”. This question is standard in competitive examination syllabi for Biochemistry And Clinical Pathology.

Rothra's test is the correct answer to “Presence of ketone bodies in urine are detected by the”. This question is standard in competitive examination syllabi for Biochemistry And Clinical Pathology.

Polycythaemia vera is the correct answer to “Primary polycythaemia is a consequence of the pathological condition known as . . . . . . . .”. This question is standard in competitive examination syllabi for Biochemistry And Clinical Pathology.

All of the above is the correct answer to “Oral hypoglycaemic agents are”. This question is standard in competitive examination syllabi for Biochemistry And Clinical Pathology.

Hard wax is the correct answer to “An example of . . . . . . . . is Carnauba wax”. This question is standard in competitive examination syllabi for Biochemistry And Clinical Pathology.

ATP and GTP is the correct answer to “Which of the following are required for the supply of energy in protein synthesis”. This question is standard in competitive examination syllabi for Biochemistry And Clinical Pathology.

Mantoux test is the correct answer to “Tuberculosis is diagonosed by.”. This question is standard in competitive examination syllabi for Biochemistry And Clinical Pathology.

Leucocytes is the correct answer to “Source of cells involved in the production of Alpha-interferon is”. This question is standard in competitive examination syllabi for Biochemistry And Clinical Pathology.

Phospholipids and proteins is the correct answer to “Blood platelets are rich in”. This question is standard in competitive examination syllabi for Biochemistry And Clinical Pathology.

Isotonic Fluid is the correct answer to “Normal saline is a.”. This question is standard in competitive examination syllabi for Biochemistry And Clinical Pathology.

Option "Vitamin H" is the correct answer for this question under Biochemistry And Clinical Pathology.

Valine is the correct answer to “All are non-essential amino acid except”. This question is standard in competitive examination syllabi for Biochemistry And Clinical Pathology.

Lactobacillus is the correct answer to “Curd contains . . . . . . . . bacteria”. This question is standard in competitive examination syllabi for Biochemistry And Clinical Pathology.

All of these is the correct answer to “Vitamin K regulates the synthesis of blood clotting factors”. This question is standard in competitive examination syllabi for Biochemistry And Clinical Pathology.

Addison's disease is the correct answer to “Hyponatremia is associated with”. This question is standard in competitive examination syllabi for Biochemistry And Clinical Pathology.

Black currants is the correct answer to “Which of the following food sources has the highest levels of vitamin C”. This question is standard in competitive examination syllabi for Biochemistry And Clinical Pathology.

Poly Unsaturated Fatty Acids is the correct answer to “In biochemistry, PUFA stands for . . . . . . . .”. This question is standard in competitive examination syllabi for Biochemistry And Clinical Pathology.

Formyl methionine is the correct answer to “The first amino acid during protein synthesis is”. This question is standard in competitive examination syllabi for Biochemistry And Clinical Pathology.

Glucose 6-Phosphate dehydrogenase is the correct answer to “In hexose mono phosphate shunt glucose 6 phosphate is converted into 6 phosphogluconolactone by”. This question is standard in competitive examination syllabi for Biochemistry And Clinical Pathology.

Velocity is the correct answer to “Enzyme kinetics and K m value depends on the effect of substrate concentration on the of enzyme.”. This question is standard in competitive examination syllabi for Biochemistry And Clinical Pathology.

Haemophilia C is the correct answer to “. . . . . . . . is a mild form resulting due to deficiency of clotting factor XI.”. This question is standard in competitive examination syllabi for Biochemistry And Clinical Pathology.

Viral hepatitis is the correct answer to “Choline esterase is helpful in diagnosis of”. This question is standard in competitive examination syllabi for Biochemistry And Clinical Pathology.

Kidney stones is the correct answer to “Excessive intake of calcium in our diet results in . . . . . . . .”. This question is standard in competitive examination syllabi for Biochemistry And Clinical Pathology.

Dextrose + starch is the correct answer to “Major components in liquid glucose are”. This question is standard in competitive examination syllabi for Biochemistry And Clinical Pathology.

Digitoxose is the correct answer to “Which of the following is a deoxy sugar”. This question is standard in competitive examination syllabi for Biochemistry And Clinical Pathology.

All the above is the correct answer to “Proteins are important in:”. This question is standard in competitive examination syllabi for Biochemistry And Clinical Pathology.

Erythrocytes is the correct answer to “Anaemia is caused due to disorder of . . . . . . . .”. This question is standard in competitive examination syllabi for Biochemistry And Clinical Pathology.

Both A and C is the correct answer to “Which of the following is a reducing sugar”. This question is standard in competitive examination syllabi for Biochemistry And Clinical Pathology.

Higher the iodine number is the correct answer to “The more C=C bonds are present in the fat indicates:”. This question is standard in competitive examination syllabi for Biochemistry And Clinical Pathology.

Hormones is the correct answer to “Which proteins are called messenger protein”. This question is standard in competitive examination syllabi for Biochemistry And Clinical Pathology.

Chromatin is the correct answer to “The protein DNA complex is higher organism is called”. This question is standard in competitive examination syllabi for Biochemistry And Clinical Pathology.

Protect the vital organs is the correct answer to “Which of the following is not a biological role of protein”. This question is standard in competitive examination syllabi for Biochemistry And Clinical Pathology.

All these is the correct answer to “Fat-soluble vitamins have properties like”. This question is standard in competitive examination syllabi for Biochemistry And Clinical Pathology.

Seliwanoff's test is the correct answer to “A keto-sugar can be detected by”. This question is standard in competitive examination syllabi for Biochemistry And Clinical Pathology.