Which alcohol is a constituent of flavin coenzyme?

Q: Proteins are precipitated by-

d) Trichloro acetic acid | Trichloro aetic acid is widely used in downstream processing of Biological products in order to ccentrate the protein and purify them from vaarious contaminants.

Q: The major site of fat digestion is-

b) small intestine | small intestine, is the major site of fat digestion. Small intestine is the part of GIT where digestionand absorption is takes place.

Q: Ninhydrin oxidatively decarboxylates α-amino acids to-

c) CO2,NH3 | Oxydative decarboxylation reaction reaction is oxidation reaction in which a carboxylate group is removed forming CO2 and NH3.

Q: one example of glycoside is-

d) Gangliosides | Gangliosides belongs to the glycosides. Ganglioside is a molecule composed of glycolipid with one or more sialic acid linked to sugar chain.

Q: Malonate is a competitive inhibitor of-

a) Succinate | malonate is the competitive inhibitor of the enzyme succinate dehydrogenase. Malonate binds to the active site of the enzyme without reacting, and so competes with succinate, the usual substrate of the Enzyme.

Q: Alkaline phosphate level is increases in which disease?

a) Rickets | Alkaline phosphate (ALP) is a hydrolase enzyme and responsible for removing phosphate groups from many types of molecules. Bone specific alkaline phosphatase isoenzyme is elevated as a result of increased osteoblastic activity. The highest total ALP values have been attributed to an increased bone isoenzyme level due to Paget disease or rickets/osteomalasia.

Q: What are the chief storage sites for manganese in the body?

a) Kidney | Manganese (Mn++) is a trace mineral helps the body to convert protein and fat to energy. It also promotes normal bone growth, helps maintain healthy reproductive, nervous, and immune systems, and is involved in blood sugar regulation.In addition mangnese is involved in blood clotting and the formation of cartilage and lubricating fluid in the joints. Mangnese is predominantly stored in the bones, liver, Kidney, and pancreas.

Q: Microcytic hypochromic anemia occurs due to deficiency of-

d) Iron | In microcytic anemia the size of red blood cells decreases due to less hemoglobin. deficiency of Iron is the most common cause of microcytic anemia.

Q: The first amino acid during protein synthesis is-

d) methionine | Methionine is specified by the codon AUG, which is also known as the start codon. Consequently, methionine is the first amino acid to dock in the ribosome during the synthesis of proteins. Protein synthesis requires the translation of nucleotide sequence into amino acid sequences.

Q: Milky type colour of urine is due to the presence of-

c) Fatty acid | milky urine can rarely be due to chyluria (lymph fluid resuting from a communication between the lymphatic system and the urinary tract. The preasence of fatty acids in urine results urinary tract infections. Cloudy or milky urine is a sign of a urinary tract infection, which may also cause a bad smell. Milky urine may also be caused by bacteria, crystals, fat, white or red blood cells, or mucus in the urine

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Q.18. Which alcohol is a constituent of flavin coenzyme?

inositol
xylitol
Ribitol
Mannitol

Answer: (c) Ribitol
Explanation: Ribitol is a crystalline pentose alcohol formed by the reduction of ribose. It is naturally occuring from the plants and also contribute the structure of riboflavin and flavin mononuleotide.

Biochemistry MCQs Based Practice Test 2 | Pharmacy Exams

30 Questions 220 Attempts 14.87K Seen

This is the second practice test in biochemistry. It is prepared in the view of diploma 1st year students but it will be helpful for every biochemistry student. Attempting this test will help to understand and revise some basic topics in biochemistry either preparing for entrance exams, final exams or for competitive exams.

Please must refer your textbooks and must read the topics arrived in these MCQs. Start Test without Login in
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