Description : Which of the following products are obtained by anaerobic respiration from yeast? (a) Beer and wine (b) Alcohols (c) CO2 (d) All of these
Last Answer : d) All of these
Description : Bacillus subtilis makes a good "bacterial factory" in genetic engineering because _____. a. it normally retains the products it makes b. it is not a human pathogen c. contains endotoxins in it's cell wall d. traditionally ferments sugars
Last Answer : b. it is not a human pathogen
Description : Ethanol and Methanol are miscible in water due to
Last Answer : Ethanol and Methanol are miscible in water due to A. Dissociation of water B. Their acidic character C. Allyl groups D. Hydrogen bonding
Description : Which of the following is an example of biological fluid? A. Ethanol B. Water C. Methanol D. Saliva
Last Answer : D. Saliva
Description : Which one of the following raw material is used in the manufacture of foam used in mattresses cushions etc. A. Phenol B. Urea C. Methanol D. Ethanol
Last Answer : ANSWER: A
Description : The excessive and chronic use of which of the drug cause uncontrollable trembling, unable to converse, and a victim of terrifying hallucinations? (a) Ethanol (b) Methanol (c) Isopropyl alcohol (d) Codeine
Last Answer : Ans:(a)
Description : This substance is commonly known as alcohol and is also used in medicines such as tincture iodine, cough syrups, and many tonics. This is - (1) Propanol (2) Butane (3) Ethanol (4) Methanol
Last Answer : (3) Ethanol Explanation: Ethanol is commonly called alcohol and is the active ingredient of all alcoholic drinks. Also, it is a good solvent and is used in medicines such as tincture iodine, cough syrups, and many tonics.
Description : DNA precipitation out of a mixture of biomolecules can be achieved by treatment with (a) chilled chloroform (b) isopropanol (c) chilled ethanol (d) methanol at room temperature.
Last Answer : (c) chilled ethanol
Description : A typical example of an exothermic reversible reaction conducted at high pressure in industry is (A) Dehydration of ethanol (B) Methanol synthesis (C) Reformation of methane (D) Polymerisation of ethylene
Last Answer : (A) Dehydration of ethanol
Description : In the conversion of wine to vinegar (a) Ethanol is oxidized to acetic acid (b) Ethanol is reduced to acetic acid (c) Methanol is oxidized to acetic acid (d) Methanol is reduced to acetic acid
Last Answer : Ethanol is oxidized to acetic acid
Description : Which of the following compounds does not give a positive iodoform test : (a) Ethanol (b) Ethanal (c) Methanol (d) Propanone
Last Answer : Methanol
Description : Which of the following compounds will give an iodoform test? (a) Benzoic acid (b) Ethanol (c) Benzyl chloride (d) Methanol
Last Answer : Ethanol
Description : Rectified spirit is (a) 100% Ethanol (b) 90% Ethanol (c) 100% Methanol (d) 95% Ethanol
Last Answer : 95% Ethanol
Description : Ethanol is used in methanol poisoning because it: A. Antagonises the actions of methanol B. Stimulates the metabolism of methanol and reduces its blood level C. Inhibits the metabolism of methanol and generation of toxic metabolite D. Replenishes the folate stores depleted by methano
Last Answer : C. Inhibits the metabolism of methanol and generation of toxic metabolite
Description : The alcohol with lowest molecular weight is: w) isopropanol x) propanol y) ethanol z) methanol
Last Answer : ANSWER: Z -- METHANOL
Description : Which one of the following pairs is wrongly matched? (a) Yeast - Ethanol (b) Streptomycetes - Antibiotic (c) Coliforms - Vinegar (d) Methanogens - Gobar gas
Last Answer : c) Coliforms - Vinegar
Description : Yeast (Saccharomyces cerevisiae) is used in the industrial production of (a) tetracyline (b) ethanol (c) butanol (d) citric acid.
Last Answer : (b) ethanol
Description : Monascus purpureus is a yeast used commercially in the production of (a) ethanol (b) streptokinase for removing clots from the blood vessels (c) citric acid (d) blood cholesterol lowering statins.
Last Answer : (d) blood cholesterol lowering statins.
Description : Monascus purpureus is a yeast used commercially in the production of (1) Blood cholesterol lowering statins (2) Ethanol (3) Streptokinase for removing clots from the blood vessels (4) Citric acid
Last Answer : (1) Blood cholesterol lowering statins
Description : Which of the following compounds reduces Tollens' reagent? (a) Glucose (b) Sucrose (c) Methanol (d) Acetic acid
Last Answer : Glucose
Description : During the formation of bread it becomes porous due to release of CO2 by the action of (a) yeast (b) bacteria (c) virus (d) protozoans.
Last Answer : (a) yeast
Description : Alcohol dehydrogenase converts ethanol into (A) Acetyl CoA (B) Acetaldehyde (C) Acetate (D) CO2 and H2O
Last Answer : Answer : B
Description : 4-Hydroxy-4-methylpentanal on heating with excess of methanol in the presence of an acid catalyst followed by dehydration of the products gives
Last Answer : 4-Hydroxy-4-methylpentanal on heating with excess of methanol in the presence of an acid catalyst followed by ... of the products gives A. B. C. D.
Description : Which of the following is an example of residual solvent? A. Starting materials B. Methanol C. Degradation products D. Heavy metals
Last Answer : A. Starting materials
Description : In non shivering thermogenesis (A) Glucose is oxidized to lactate (B) Fatty acids uncouple oxidative phosphorylation (C) Ethanol is formed (D) ATP is burned for heat production
Description : Ethanol decreases gluconeogenesis by (A) Inhibiting glucose-6-phosphatase (B) Inhibiting PEP carboxykinase (C) Converting NAD+ into NADH and decreasing the availability of pyruvate (D) Converting NAD+ into NADH and decreasing the availability of lactate
Last Answer : C
Description : The enzyme which converts glucose to ethanol is
Last Answer : zymase.
Description : Lack of qxygen in muscle often leads to cramps among Athletes . This results due to : (a) conversion of Pyruvate to Ethanol (b) conversion of Pyruvate to Glucose (c) conversion of Glucose to Pyruvate (d) conversion of Pyruvate to Lactic acid
Last Answer : (b) conversion of Pyruvate to Glucose
Description : The DNA polymerase commonly used in polymerase chain reaction is obtained from (A) E. coli (B) Yeast (C) T.aquaticus (D) Eukaryotes
Last Answer : Answer : C
Description : Ergot is obtained from: (a) Albugo (b) Yeast (c) Claviceps Purpurea (d) Alternaria
Last Answer : Ans. ((c))
Description : The product obtained when yeast is added to sugar solution?
Last Answer : Wash
Description : Human insulins are obtained by the following sources/methods except: A. Cadaver pancreas B. Proinsulin recombinant bacterial C. Precursor yeast recombinant D. Enzyme modification of pork insulin
Last Answer : . Cadaver pancreas
Description : A fruity smell is obtained by the reaction of ethanol with which compound? -Do You Know?
Last Answer : answer:
Description : A fruity smell is obtained by the reaction of ethanol with which compound?
Last Answer : CH3COOH
Description : A fruity smell is obtained by the reaction of ethanol with which compound
Description : In fermentation reactions occurring in yeast, two products of metabolism are ______ and ______. a. Acid; Hydrogen Gas b. Hydrogen Gas; Sucrose c. Ethyl Alcohol; Methane d. Carbon Dioxide; Ethyl Alcohol
Last Answer : a. Acid; Hydrogen Gas
Description : What is the key element of CO2 and glucose?
Last Answer : Feel Free to Answer
Description : If glucose-1-phosphate formed by glycogenoloysis in muscles is oxidized to CO2 and H2O, the energy yield will be (A) 2 ATP equivalents (B) 3 ATP equivalents (C) 4 ATP equivalents (D) 8 ATP equivalents
Description : Complete oxidation of one molecule of glucose into CO2 and H2O yields (A) 8 ATP equivalents (B) 15 ATP equivalents (C) 30 ATP equivalents (D) 38 ATP equivalents
Last Answer : Answer : D
Description : One molecule of glucose gives ______ molecules of CO2 in one round of HMP shunt. (A) 6 (B) 1 (C) 2 (D) 3
Last Answer : B
Description : One molecule of glucose gives ______ molecules of CO2 in EM-TCA cycle. (A) 6 (B) 3 (C) 1 (D) 2
Last Answer : A
Description : Which of the following is correct about the photorespiration? a. Photorespiration is more efficient in synthesizing glucose than photosynthesis. b. C3 plants are best adapted to handle c. ... During photorespiration plants use oxygen to break down carbohydrates and release e. All of these
Last Answer : c. Photorespiration is likely to occur when oxygen level is high and CO2 level is
Description : How many ATP molecules could maximally be generated from one molecule of glucose, if the complete oxidation of one mole of glucose to CO2 and H2O yields 686 kcal and the useful chemical energy available in the high energy phosphate bond of one mole of ATP is 12 kcal? (a) 1 (b) 2 (c) 30 (d) 57
Last Answer : d) 57
Description : During an early step of respiration, glucose is converted into two identical molecules of: a) CO2 b) ATP c) pyruvic acid(pron: pie-ROO-vik) d) chlorophyll
Last Answer : ANSWER: C -- PYRUVIC ACID
Description : Flue gas obtained on complete combustion of pure acetylene (a hydrocarbon fuel) will contain (A) CO (B) CO2 (C) H2O (D) Both (B) & (C)
Last Answer : (D) Both (B) & (C)
Description : What will be the volume of CO2 at NTP obtained on heating 10 grams of (90% pure) limestone [Pb. CET 2001] (A) 22.4 litre (B) 2.016 litre (C) 2.24 litre (D) 20.16 litre
Last Answer : (B) 2.016 litre
Description : Which one of the following mixtures is homogeneous? (1) Starch and sugar (2) Methanol and water (3) Graphite and charcoal (4) Calcium carbonate and calcium bicarbonate
Last Answer : (2) Methanol and water Explanation: A homogeneous mixture is a solid, liquid, or gaseous mixture that has the same proportions of its components throughout any given sample.
Description : The chemical used in enabalining biological materials is – (1) formaldehyde in water (2) formaldehyde in methanol (3) ethylene glycol (4) gaseous formaldehyde
Last Answer : (1) formaldehyde in water Explanation: Embalming fluids use formaldehyde as a preservative. Formaldehyde is the simplest aldehyde with the chemical formula HCHO. Formalin is a solution of formaldehyde ... based embalming fluids are much kinder to the environment than those used in previous years.
Description : At 60° C, vapour pressure of methanol and water are 84.562 kPa and 19.953 kPa respectively. An aqueous solution of methanol at 60° C exerts a pressure of 39.223 kPa; the liquid phase and vapour phase mole ... respectively. Activity co-efficient of methanol is (A) 1.572 (B) 1.9398 (C) 3.389
Last Answer : (A) 1.572
Description : The substance whose chemical formula is CH3OH is known as w) carbonated water x) grain alcohol y) potable alcohol z) methanol