Mock boards 2

C

All carbohydrates I. Seliwanoff's Test II. Phloroglucinol Test III. Keller-Killiani Test IV. Molisch 'sTest V. Fehling's Test VI. Osazone Test a. III b. VI c. IV d. I

B

All monosaccharides I. Seliwanoff's Test II. Phloroglucinol Test III. Keller-Killiani Test IV. Molisch 'sTest V. Fehling's Test VI. Osazone Test a. VI b. V c. III d. II

D

Analyze and choose the isoprene unit. a. 5-carbon compound with the formula: CH3-CH(CH3)-CH2-CH3 b. 3-carbon compound with the formula: CH2=CH=CH2 c. 4-carbon compound with the formula: CH2=CH-CH=CH2 d. 5-carbon compound with the formula: CH2=CH(CH3)-CH2=CH2

A

Analyze and classify the plant growth and metabolic inhibitor, acts as an antagonist to gibberellic acid and increases tolerance of plants to stress. a. Abscisic Acid b. Gibberellins c. Auxins d. Ethylene

D

Analyze and select the underlying principle in the Ninhydrin test for proteins. a. Based on the reaction of cupric ions of the reagent with the N of the peptide bonds, forming a purple or violet-colored complex. b. Based on the nitration of proteins which leads to the formation of a yellow precipitate that turns to orange on treatment with an alkali. c. Based on the reaction between phenolic group of a protein with mercuric sulfate in the presence of sodium nitrite and sulfuric acid, resulting in the formation of a red-colored solution. d. Based on the reaction between the reagent and the amino group of the free amino acid of the test sample, which leads to the oxidation of the compound and its deamination and, resulting in the formation of a deep blue-colored solution.

C

Analyze the mechanism or catalytic strategy employed by restriction endonucleases. a. Utilization of the free energy associated with the hydrolysis of ATP b. Achievement of a high absolute rate of reaction that is suitable for integration with other physiological processes c. Attainment of a high degree of specificity d. Promotion of a reaction that is immeasurable slow at neutral pH.

D

Analyze which oil is suitable for painting. a. Coconut Oil b. Orange Oil c. Castor Oil d. Linseed Oil

A

Atropine I. Isoquinoline V. Tropane II. Indole VI. Quinolizodine III. Quinoline IV. Imidazole VII. Aporphine VIII. Purine a. V b. VI c. I d. VII

A

Caffeine I. Isoquinoline V. Tropane II. Indole VI. Quinolizodine III. Quinoline IV. Imidazole VII. Aporphine VIII. Purine a. VIII b. V c. III d. IV

A

Choose the organelle found close to the endoplasmic reticulum, which receives and acts on proteins and membrane lipids, to further modify them and passes these on to other parts of the cells through budding vesicles. a. Golgi Apparatus b. Lysosomes c. Ribosomes d. Mitochondria

D

Classify Nucleoside Monophosphate Kinase. a. Ligase b. Hydrolase c. Lyase d. Transferase

C

Classify the amino acids according to their side-chain functional groups: Glutamine, Aspartic Acid a. Sulfur-containing b. Aromatic c. Carboxylic Acids d. Basic

B

Classify the source of Locust Bean. a. Marine Species b. Seeds c. Plant Extracts d. Microbes

A

Condition developed when the body is starved from glucose during prolonged fasting or starvation. a. Diabetic Ketosis b. Diabetes Insipidus c. Wilson's Disease d. Wernicke-Korsakoff Syndrome

A

Deduce the mechanism of action of malt extract as an aid in digesting starch. a. Converts into water-soluble sugars NOT less than 5 times its weight of starch. b. Contains papain that hydrolyzes starch. c. Contains emulsin that hydrolyzes starch d. Contains lactase that converts 50 times its weight of potato starch into sugars

A

Deoxysugars I. Seliwanoff's Test II. Phloroglucinol Test III. Keller-Killiani Test IV. Molisch 'sTest V. Fehling's Test VI. Osazone Test a. III b. VI c. II d. I

D

Determine the immediate precursor of Phenylalanine. a. Anthranilic acid b. Chorismic acid c. Para-hydroxyphenylpyruvic acid d. Phenylpyruvic acid

B

Determine the intermediate product formed in the biosynthesis of fatty acids, when malonyl-CoA reacts with acetyl CoA. The product undergoes reduction and elimination of carbon dioxide. a. Caproyl-CoA b. Butyryl-CoA c. Acetyl-CoA d. Glycerophosphate

D

Ergotamine I. Isoquinoline V. Tropane II. Indole VI. Quinolizodine III. Quinoline IV. Imidazole VII. Aporphine VIII. Purine a. IV b. VII c. V d. II

D

Evaluate which compound is converted to cholecalciferol. a. 5-dihydrocholesterol b. 6-dehydrocholesterol c. 7-dihydrocholesterol d. 7-dehydrocholesterol

C

Find the examples of transport and storage proteins: A. Ribonuclease, Hexokinase B. Actin, Myosin C. Hemoglobin, Myoglobin, Serum Albumin D. Keratin, Actin

A

Find the homoglycans. a. Cellulose, Inulin, Starch b. Heparin, Agarose c. Cellobiose, Hyaluronic Acid d. Glycogen, Agar

A

Find the hormones used in the diagnosis of pancreatic disorders. a. Cholecystokinin, Secretin b. Secretin, Gastrin c. Cholecystokinin, Insulin d. Gastrin, Calcitonin

D

Find the pair that is NOT correctly matched. a. Hyoscyamus niger - Hyoscyamine b. Datura stramonium - Hyoscyamine c. Erythroxylon coca - Cocaine d. Lobelia inflata - Hyoscine

D

Find the scientific name of Bignay. a. Hibiscus sabdariffa b. Abelmoschus esculentus c. Ehretia microphylla d. Antidesma bunius

C

Find the statement that does NOT describe resins and their combinations. a. The metallic salts of resins are called resinates. b. Balsams are resinous mixtures that contain cinnamic acid, benzoic acid or both or; esters of these acids. c. Resins are soluble in water. d. Chemically, resins are complex mixtures of resin acids, resin alcohols, resinotannols, esters and resenes.

C

Find the statement that is NOT correct about the chemical composition of glycosides. a. Both alpha and beta glycosides exist, but ONLY the beta form occurs in nature. b. Natural enzyme likes emulsin, hydrolyze only the beta-forms. c. The sugar component is called aglycone and the non-sugar component, glycone. d. They are acetals in which the hydroxyl of the sugar is condensed with the hydroxyl group of the non-sugar component.

C

Find the statement that is correct about lipids. a. Thromboxane prevents blood clotting b. Prostaglandins stimulate gastric acid secretion c. Eicosanoids act as messengers inside cells and between neighboring cells d. Linoleoyl-CoA is derived from arachidonyl-CoA

D

Given the mRNA sequence below: AUG-UCU-UAU-AGA-GGG-UAA UCU: Ser UAU: Tyr AGA: Arg GGG: Gly GGA: Gly What mutations occur if the last G in the 5th codon is replaced by U? a. Frameshift, Silent b. Frameshift, Non-sense c. Point, Transition d. Point, Transversion

B

Given the mRNA sequence below: AUG-UCU-UAU-AGA-GGG-UAA UCU: Ser UAU: Tyr AGA: Arg GGG: Gly GGA: Gly What mutations occur if the last U from the 3rd codon is removed? a. Frameshift, Missense b. Frameshift, Silent c. Point, Non-sense d. Point, Silent

C

I. Bergamot Oil II. Cardamom Oil III. Clove Oil IV. Lavender Oil V. Lemon Oil VI. Roman Chamomile VII. Star Anise Oil VIII. Sweet Orange Oil Identify the volatile oil of Syzygium aromaticum. a. Bergamot oil b. Roman Chamomile oil c. Clove oil d. Cardamom oil

C

I. Bergamot Oil II. Cardamom Oil III. Clove Oil IV. Lavender Oil V. Lemon Oil VI. Roman Chamomile VII. Star Anise Oil VIII. Sweet Orange Oil Classify Caraway and Buchu Oil. a. Peroxides b. Phenols c. Ketones d. Ethers

B

Identify the antibiotics that inhibit protein synthesis. a. Nystatin, Polymixin, Amohotericin B b. Chloramphenicol, Clindamycin, Gentamicin c. Rifampin, Actinomycin-D, Mitomycin C d. Bacitracin, Cephalosporins, Penicillins

A

Identify the biological source of Paclitaxel. a. Taxus brevifolia b. Campthoteca acuminata c. Catharantus roseus d. Akapulko

A

Identify the carrier molecule that transports fatty acids across the inner mitochondrial membrane. a. Carnitine b. Chylomicron c. Aldimine d. GLUT

A

Identify the constituent of Rauwolfia serpentina. a. Reserpine b. Scopolamine c. Emetine d. Ipecac

B

Identify the essential fatty acids for humans. a. Linolenic acid (omega-6) and Linoleic acid (omega-3) b. Linoleic acid (omega 6) and alpha-linolenic acid (omega-3) c. Oleic acid, Linolenic acid d. Stearic acid, Linoleic acid

C

Identify the family to which Atropa belladonna belongs. a. Papaveraceae b. Fabaceae c. Solanaceae d. Berberidaceae

D

Identify the nucleotide which is responsible for transcribing the complementary DNA message A. rRNA B. tRNA C. hnRNA D. mRNA

B

Identify the precursors of gluconeogenesis. a. Glycerol, lactic acid, pyruvic acid b. Glycerol, lactate, pyruvate, glucogenic amino acids c. Pyruvic acid, lactic acid, acetic acid d. Sucrose, lactic acid, pyruvic acid

D

Identify the scientific name of Tawa-tawa. a. Taxus brevifolia b. Ehretia microphylla c. Abelmoschus esculentus d. Grammatophyllum scriptum

C

Identify the site of the initial stage of protein synthesis. a. Cytoplasm b. Golgi Apparatus c. Ribosomes d. Nucleus

D

Identify the stage in protein synthesis when the anticodon of tRNA recognizes the codon on the mRNA. a. Termination b. Transcription c. Translation d. Elongation

D

Identify the step in DNA synthesis where DNA polymerase plays a role. a. Termination b. Primer Binding c. Replication fork formation d. Elongation

D

Identify the type of chemical reaction in the conversion of glyceraldehyde-3-phosphate to 1,3-bisphosphoglycerate. a. Phosphoryl shift b. Aldol cleavage c. Isomerization d. Reduction-oxidation

C

Identify the vaccine which is a sterile suspension of inactivated virus strains that are grown separately in primary cultures of Rhesus monkey kidney tissues, bathed in a complex nutrient fluid containing more than 60 ingredients. a. Influenza virus vaccine b. Rabies vaccine c. Poliomyelitis vaccine d. Smallpox vaccine

C

Identify the volatile of Anthemis nobilis. I. Bergamot Oil II. Cardamom Oil III. Clove Oil IV. Lavender Oil V. Lemon Oil VI. Roman Chamomile VII. Star Anise Oil VIII. Sweet Orange Oil a. Lavender oil b. Star Anise oil c. Roman Chamomile oil d. Clove oil

D

Identify the zymogen that is activated by Trypsin. a. Fibrinogen b. Pepsinogen c. Trypsinogen d. Procarboxypeptidase

D

It is made by the gut bacteria, the bacterial source can supply most or all of the needs of a normal healthy adult. It serves as a co-factor for carboxylation reactions. a. Vitamin K b. Vitamin D c. Vitamin E d. Biotin

A

It serves as a co-factor in numerous biochemical index reactions, where its ability to accept and donate electrons, one at a time, is quite valuable. a. Riboflavin b. Vitamin E c. Biotin d. Vitamin K

D

Ketones I. Seliwanoff's Test II. Phloroglucinol Test III. Keller-Killiani Test IV. Molisch 'sTest V. Fehling's Test VI. Osazone Test a. III b. IV c. V d. I

C

Morphine I. Isoquinoline V. Tropane II. Indole VI. Quinolizodine III. Quinoline IV. Imidazole VII. Aporphine VIII. Purine a. VIII b. V c. I d. III

B

Pentoses I. Seliwanoff's Test II. Phloroglucinol Test III. Keller-Killiani Test IV. Molisch 'sTest V. Fehling's Test VI. Osazone Test a. I b. II c. IV d. III

A

Pick the odd one out! a. Telomeres b. Okazaki Fragments c. Leading Strand d. Lagging Strand

B

Select the category to which D-glucose and D-mannose belong. a. Enantiomers b. Epimers c. Aldose-ketose d. Diastereomers

B

Select the class to which prostaglandins belong. a. Sphingolipid b. Fatty Acid c. Glyceryl Ester d. Terpene

A

Select the classification and therapeutic use of Glucovanillin. a. Aldehyde, flavor b. Flavonol, antibacterial c. Anthraquinone, cathartic d. Saponin, analgesic

B

Select the coenzyme that is required by aminotransferases. a. Nicotinamide adenine dinucleotide b. Pyridoxal phosphate c. Flavin adenine dinucloetide d. Nicotinamide adenine dinucleotide phosphate

C

Select the complementary base pair for the DNA segment GATCAA: a. CTGGUU b. CUAGUU c. CTAGTT d. TTAGTT

D

Select the correct triad of "health foods." a. Symphytum officinale - Comfrey - hepatotoxic b. Spirulina maxima - Spirulina - fertility drug c. Glycyrrhiza glabra - Licorice - antidiabetic d. Oenothera biennis - Evening Primrose - analgesic

D

Select the correct triad: a. Datura stramonium - Scopolamine - Flavor b. Glycyrrhiza glabra - Limonene - Expectorant c. Catharantus roseus - Quinine - Anti-cancer d. Citrus sinensis - Limonene - Flavor

B

Select the enzyme that hydrolyzes bacterial cell wall. a. Carbonic Anhydrase b. Lysozyme c. Lactate Dehydrogenase d. Kinase

C

Select the hormones that control glycogen metabolism. a. Epinephrine, Insulin b. Epinephrine, Glucagon c. Epinephrine, Glucagon, Insulin d. Insulin, Glucagon

C

Select the major storage form of fatty acids. a. Ester of a long chain alcohol b. Ester of a monohydric alcohol c. Triglyceride d. Ester of a polyhydric alcohol

C

Select the method of evaluating drugs which involves the use of the organs of sense, the macroscopic appearance of the drug, its odor and taste, the sound or snap of the fracture and the feel of the drug to the touch. a. Microscopic method b. Biological method c. Organoleptic method d. Chemical method

A

Select the most abundant of the serum immunoglobulins. a. IgG b. IgD c. IgE d. IgA

C

Select the pair that is NOT correctly matched. a. Tobacco - nicotine for smoking cessation b. Belladonna - spasmolytic agent c. Coca - local analgesic d. Datura - anticholinergic

A

Select the plant that is used as an antidiabetic. a. Banaba b. Yerba Buena c. Tsaang Gubat d. Lagundi

A

Select the sequence of the mRNA segment synthesized from this DNA template strand: ----CACCGCCCGTCG---- a. GUGGCGGGCAGC b. GUGGCGGCCAGC c. GUCGCGGGCAGC d. GUGCCGGGCAGC

A

Select the site of pyruvate formation during glycolysis: a. Liver b. Muscles c. Heart d. Lungs

A

Select the statement that BEST describes Cinchona alkaloids. a. Cinchonine is the parent alkaloid of the quinine series. b. Classified as isoquinoline alkaloid. c. Cinchonine is the isomer of cinchonidine and quinidine is the isomer of quinine. d. Currently used after having been proven to be clinically effective and safe in the treatment of COVID-19 patients.

B

Select the statement that BEST describes Nonhydrolyzable tannins. a. Gallotannin is a condensed tannin. b. When treated with hydrolytic agents, they tend to polymerize, yielding insoluble, red-colored products called phlobaphenes. c. Insoluble in water and aqueous organic solvents. d. Less resistant to microbial degradation than hydrolysable tannins.

C

Select the statement that best describes fatty acid metabolism. a. Fatty acid metabolism is NOT tied to carbohydrate metabolism. b. Fatty acids and their CoA esters are able to freely cross the inner mitochondrial membrane. c. The release of fatty acids and their subsequent beta-oxidation is a primary source of metabolic energy for the cell. d. Fatty acid catabolism is NOT under hormonal control.

D

Select the statement that characterizes Flavonoids. a. These are polyphenolic molecules that contain 15 carbon atoms and are insoluble in water. b. Examples are Rutin, Quercetin, Arbutin and Hesperidin. c. Rutin and Hesperidin are called Vitamin F or permeability factors, which are used in the treatment of conditions characterized by capillary bleeding and increased fragility. d. These are aglycones of flavonol glycosides.

A

Select the statement that characterizes Prunasin: a. A cyanogenic glycoside that occurs in the bark of Prunus serotina. b. A thiocyanogenic glycoside. c. It's aglycone is amygdalin. d. Yields hydrochloric acid on hydrolysis.

A

Select the statement that do NOT characterize Taxanes. a. Taxol is an antimalarial drug. b. Taxanes were originally identified from plants of the genus Taxus. c. Taxanes bind to microtubules and enhance their depolymerization. d. Paclitaxel, Docetaxel, Cabazitaxel are examples of Taxanes.

A

Select the statement that do NOT describe protein synthesis. a. Proteins are synthesized stepwise by the polymerization of amino acids in a unidirectional manner, beginning at the C- terminus and ending at the N-terminus. b. The mRNA provides the instruction for the synthesis of a specific protein. c. The information encoded in mRNA is translated by tRNA molecules that bind to the mRNA at one end and carry specific amino acids at the other end. d. The synthesis of the growing polypeptide is carried out on ribosomes that contain RNA and associated proteins.

A

Select the statement that is NOT correct about HbA1C. a. The extent of glycosylation of a common protein such as hemoglobin in circulating erythrocytes, depends on the concentration of free glucose. b. Glucose levels in the blood are unusually high in patients with diabetes mellitus so that Hb becomes glycosylated (HbA). c. The major sugar derivative, HbA1C, is formed from the reaction of glucose with the amino terminal group on the beta subunit of Hb. d. The lifetime of a typical erythrocyte is 110-120 days so, the amount of HbA1c is a record of the average level of glucose in the blood over the previous couple of months.

A

Select the statements that best describe the shikimate pathway: I. The pathway is found both in plants and animals. II. It is a seven step metabolic route for the biosynthesis of folates and aromatic amino acids. III. Products of this pathway represent essential amino acids. IV. Lower forms of organisms like bacteria and protozoans do not have the shikimate pathway. A. II & III B. II, III & IV C. I, II, III & IV D. I & II

C

Select the vitamin that requires bile salts and dietary lipids for its efficient absorption from the intestinal tract. a. Vit. C b. Vit. K c. Vit. A d. Vit. E

A

State of nitrogen imbalance characterized by severe protein deficiency with a normal caloric intake: A.Kwashiorkor B. Marasmus C. Primary Malnutrition D. Secondary Malnutrition

B

Which of the following plant constituents is biosynthesized via the mevalonate pathway? I. Terpineol II. Camphor III,Hyoscyamine A. II & III B. I, II & IV C. II, IV & V D. I & III

D

Which of the following plant constituents is biosynthesized via the shikimate pathway? I. Ergosterol II. Sitosterol III. Morphine A. II & III B. I & II C. I, III & V D. III,IV&V

C

Which of the nitrogenous bases form 2 hydrogen bonds with each other in the DNA double strand? a. I & IV b. II & IV c. III&V d. I & V

D

Which of the nitrogenous bases form 3 hydrogen bonds with each other in special RNA double-strand like structures? a. I & V b. I & IV c. III&V d. II & IV

D

Which of the nitrogenous bases is exclusively found in strands that undergo replication? a. II b. I c. IV d. III

C

Which statements best describe nucleosides? I. Nucleoside consists of a nucleobase and a five carbon sugar. II. Nucleosides are precursors for nucleic acid synthesis. III. Nucleoside and nucleoside analogues are used in anti-viral and anti-cancer drug therapy. IV. Nucleosides are composed of nucleobases covalently attached to a 5-carbon sugar. V. The nucleobases of nucleosides are non-aromatic heterocyclic compounds containing N. A. II,III&IV B. I,III&V C. I,II,III&IV D. I, II, III, IV, V