Description : When you do strenuous exercise, oxygen is used up rapidly. What substance is formed. a) pyruvic acid(pron: pie-ROO-vik) b) lactic acid c) glucose d) alcohol
Last Answer : ANSWER: B -- LACTIC ACID
Description : An essential for converting Glucose to Glycogen in Liver is (A) Lactic acid (B) GTP (C) CTP (D) UTP CARBOHYDRATES AND CARBOHYDRATE METABOLISM 19
Last Answer : D
Description : End product of citric acid cycle/Krebs’ cycle is (a) citric acid (b) lactic acid (c) pyruvic acid (d) CO2 + H2O
Last Answer : (d) CO2 + H2O.
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 : Link between glycolysis, Krebs’ cycle and β-oxidation of fatty acid or carbohydrate and fat metabolism is (a) oxaloacetic acid (b) succinic acid (c) citric acid (d) acetyl CoA.
Last Answer : (d) acetyl CoA.
Description : Which of these acids is not organic in origin? (1) Lactic acid (2) Sulphuric acid (3) Citric acid (4) Oxalic acid
Last Answer : Sulphuric acid
Description : Which of the following acids serves as an electrolyte in a lead storage battery? (1) Sulphuric acid (2) Lactic acid (3) Hydrochloric acid (4) Nitric acid
Last Answer : (1) Sulphuric acid Explanation: Dilute sulfuric acid (H2SO4) serves as the electrolyte in a lead-acid battery. Dilute sulfuric acid used for lead acid battery has ratio (to water) of 3:1 other components of the battery include: Lead peroxide (PbO2) and Sponge lead (Pb).
Description : The aqueous solution of which acids is called Vinegar - (1) Citric acid (2) Hydrochloric acid (3) Acetic acid (4) Oxalic acid
Last Answer : (3) Acetic acid Explanation: Vinegar is an aqueous solution of acetic acid and trace chemicals that may include flavorings. Vinegar typically contains 5–20% acetic acid by volume.
Description : Which of the following acids is present in bee sting? a) Methanoic acid b) Citric acid c) Hydrochloric acid d) Tartaric acid
Last Answer : a) Methanoic acid
Description : During which stage in the complete oxidation of glucose are the greatest number of ATP molecules formed from ADP? (a) Glycolysis (b) Krebs’ cycle (c) Conversion of pyruvic acid to acetyl CoA (d) Electron transport chain
Last Answer : (d) Electron transport chain
Description : Concentration of pyruvic acid and lactic acid in blood is increased due to deficiency of the vitamin (A) Thiamin (B) Riboflavin (C) Niacin (D) Pantothenic acid
Last Answer : Answer : A
Description : The oxidation of lactic acid to pyruvic acid requires the following vitamin derivative as the hydrogen carrier. (A) Lithium pyrophosphate (B) Coenyzme A (C) NAD+ (D) FMN
Last Answer : C
Description : Which one of the following chemicals is associated with muscle fatigue? (1) Uric acid (2) Acetic acid (3) Pyruvic acid (4) Lactic acid
Last Answer : (4) Lactic acid Explanation: Muscle fatigue refers to the decline in muscle force generated over sustained periods of activity. Intracellular acidosis due mainly to lactic acid accumulation has ... leads to increased intracellular hydrogen ion (H+) concentration that leads to a weaker contraction.
Last Answer : (A) Thiamin
Last Answer : Lactic acid
Description : Muscle fatigue is caused by the accumulation of : (1) Pyruvic acid (2) Lactic acid (3) Oxalacetic acid (4) Uric acid
Description : Acetyl CoA is not used for the synthesis of (A) Fatty acid (B) Cholesterol (C) Pyruvic acid (D) Citric acid
Description : What is the chemical name ofvinegar? (1) Citric acid (2) Acetic acid (3) Pyruvic acid (4) Mahe acid
Last Answer : (2) Acetic acid Explanation: Vinegar is a liquid substance consisting mainly of acetic acid (CH3CO2H) and water, the acetic acid being produced through the fermentation of ethanol by acetic acid ... domestic uses, some of which (such as a general household cleanser) are still promoted today.
Description : Which statement is wrong for Krebs' cycle? (a) There is one point in the cycle where FAD+ is reduced to FADH2. (b) During conversion of succinyl CoA to succinic acid, a molecule of GTP is synthesised. (c ... citric acid. (d) There are three points in the cycle where NAD+ is reduced to NADH + H+.
Last Answer : (c) The cycle starts with condensation of acetyl group (acetyl CoA) with pyruvic acid to yield citric acid.
Description : What is the chemical name of vinegar ? (1) Citric acid (2) Acetic acid (3) Pyruvic acid (4) Malic acid
Last Answer : Acetic acid
Description : Which acid is present in lemon? (1) marlic acid (2) citric acid (3) lactic acid (4) tartaric acid
Last Answer : (2) citric acid Explanation: Citric acid is a weak organic acid with the formula C6H8O7.The juice of the lemon is about 5% to 6% citric acid, which gives a sour taste.
Description : Which acid is present in lemon – (1) malic acid (2) citric acid (3) lactic acid (4) tartaric acid
Last Answer : (2) citric acid Explanation: The main organic acids contained in the flesh of lemons are citric acid and malic acid. The sourness of citrus fruit is the taste of citric acid.
Description : Sweat contains water and ______. (1) Citric acid (2) Lactic acid (3) Salt (4) Vinegar
Last Answer : (3) Salt Explanation: Sweat contains mainly water. It also contains minerals, lactate, and urea. It also contains a smaller amount of sodium chloride (main component of ordinary table salt).
Description : Sour milk contains – (1) acetic acid (2) tartaric acid (3) citric acid (4) lactic acid
Last Answer : (4) lactic acid \ Explanation: Lactic acid, also known as milk acid, is a chemical compound that plays a role in various biochemical processes and was first isolated in 1780 by the Swedish ... kefir, and some cottage cheeses. The casein in fermented milk is coagulated (curdled) by lactic acid.
Description : Milk tastes sour when it is left in open for some time. This happens due to the formation of (1) Lactic acid (2) Citric acid (3) Acetic acid (4) Carbonic acid
Last Answer : (1) Lactic acid Explanation: Milk contains a sugar called lactose, a disaccharide (compound sugar) made by the glycosidic bonding between glucose and glactose (monosaccharides). When milk is heated to ... multiplies. These convert the lactose into lactic acid, which imparts the sour taste to curd.
Description : Vinegar made by fermentation from cane sugar contains – (1) palmitic acid (2) lactic acid (3) citric acid (4) acetic acid
Last Answer : (4) acetic acid Explanation: Vinegar is a liquid substance consisting mainly of acetic acid (CH3CO2H) and water, the acetic acid being produced through the fermentation of ethanol by acetic ... are still promoted today. Commercial vinegar is produced either by fast or slow fermentation processes.
Description : Milk tastes sour when kept in the open for sometime due to the formation of – (1) lactic acid (2) citric acid (3) acetic acid (4) carbonic acid
Last Answer : (1) lactic acid Explanation: Like many other things, milk contains bacteria, Milk also naturally contains a kind of sugar known as "lactose." The bacteria that live in milk get energy from this ... sugars to reproduce, they change it from "lactose sugar" into "lactic acid," which tastes sour.
Description : Which one of the following is a wrong matching of a microbe and its industrial product, while the remaining three are correct? (a) Yeast – Statins (b) Acetobacter aceti – Acetic acid (c) Clostridium butylicum – Lactic acid (d) Aspergillus niger – Citric acid
Last Answer : (c) Clostridium butylicum – Lactic acid
Description : Abscission in fruit occur due to: a. Excessive abscissic acid b. Excessive Ghrtamic acid c. Excessive Lactic acid d. Excessive Citric acid
Last Answer : Excessive abscissic acid
Description : Acid present in Tomato is (A)Lactic acid (B) Tartaric acid (C) Oxalic acid (D) Citric acid
Last Answer : (C) Oxalic acid
Description : Nettle sting is a natural source of which acid? a) Methanoic acid b) Lactic acid c) Citric acid d) Tartaric acid
Description : 73. Yeast is used in the production of (1) Cheese and butter (2) Citric acid and lactic acid (3) Lipase and pectinase (4) Bread and beer
Last Answer : Bread and beer
Description : Sweat contains water and _______. (1) Citric acid (2) Lactic acid (3) Salt (4) Vinegar
Last Answer : Salt
Description : Vinegar made by fermentation from cane sugar contains (1) palmitic acid (2) lactic acid (3) citric acid (4) acetic acid
Last Answer : acetic acid
Description : Sour milk contains (1) acetic acid (2) tartaric acid (3) citric acid (4) lactic acid
Last Answer : lactic acid
Description : Milk tastes sour when kept in the open for sometime due to the formation of (1) lactic acid (2) citric acid (3) acetic acid (4) carbonic acid
Description : Vinegar is acidic in nature due to the presence of (a) vanillic acid (b) lactic acid (c) hydrochloric acid (d) acetic acid
Last Answer : Ans:(d)
Description : Oxyntic cell is meant for the secretion of (1) Pepsin (2) Enterokinase (3) Hydrochloric acid (4) Lactic acid
Last Answer : (3) Hydrochloric acid Explanation: Parietal cells (also known as oxyntic cells), are the epithelial cells that secrete hydrochloric acid (HCL) and intrinsic factor. These cells are located in ... an extensive secretory network from which the HCL is secreted by active transport into the stomach.
Last Answer : Hydrochloric acid
Description : The acid present in lemons and oranges is (a) acetic acid (b) hydrochloric acid (c) citric acid (d) oxalic acid
Last Answer : Ans:(c)
Description : Which acid is present in the stomach of humans? (1) sulphuric acid (2) hydrochloric acid (3) nitric acid (4) citric acid
Last Answer : (2) hydrochloric acid Explanation: Hydrochloric acid is naturally produced by cells in our bodies to help digest food in the stomach.
Description : Acid used in an automobile battery? (1) Sulphuric acid (2) Hydrochloric acid (3) Nitric acid (4) Citric acid
Last Answer : (1) Sulphuric acid Explanation: Each cell of an automotive battery consists of alternate plates of lead (cathode) and (anode) immersed in an electrolyte of sulfuric acid solution.
Description : To test chemical oxygen demand (C.O.D.) of sewage, organic matter is oxidised by potassium dichromate in the presence of A. Hydrochloric acid B. Sulphuric acid C. Nitric acid D. Citric acid
Last Answer : ANS: B
Description : ‘Vinegar’ is a commercial name of (1) Oxalic acid (2) Hydrochloric acid (3) Acetic acid (4) Citric acid
Description : The building up and breaking down of protoplasm are concerned with the metabolism of (A) Carbohydrate (B) Lipid (C) Protein (D) Minerals
Last Answer : Answer : C
Description : All living organisms retain the enzymatic machinery to partially oxidise glucose without the help of oxygen. This breakdown of glucose to pyruvic acid
Last Answer : All living organisms retain the enzymatic machinery to partially oxidise glucose without the help of oxygen ... of glucose to pyruvic acid is called.
Description : An essential agent for converting glucose to glycogen in liver is (A) Latic acid (B) GTP (C) UTP (D) Pyruvic acid