Question : In the context of respiration, the stage known as glycolysis involves the breaking down of _______________to pyruvic acid.
Option 1: lactic acid
Option 2: fructose
Option 3: citric acid
Option 4: glucose
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Correct Answer: glucose
Solution : The correct answer is glucose.
In the process of respiration, the stage known as glycolysis involves the breaking down of glucose to pyruvic acid. Glycolysis is the initial stage of both aerobic and anaerobic respiration and it takes place in the cytoplasm of the cell. During glycolysis, one molecule of glucose is converted into two molecules of pyruvic acid, producing a small amount of ATP (adenosine triphosphate) and NADH (nicotinamide adenine dinucleotide).
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Question : What is the final product of glycolysis?
Option 1: Ethyl alcohol
Option 2: Carbon dioxide
Option 3: Pyruvic acid
Option 4: Glucose
Question : Which of the following acids is found in spinach?
Option 1: Tartaric acid
Option 2: Oxalic acid
Option 3: Citric acid
Option 4: Lactic acid
Question : Which of the following acids is responsible for muscle fatigue in humans?
Option 1: Acetic acid
Option 2: Nitric acid
Option 3: Lactic acid
Option 4: Hydrochloric acid
Question : Alum is made by dissolving bauxite in:
Option 1: Phosphoric acid
Option 2: Citric acid
Option 3: Boric acid
Option 4: Sulphuric acid
Question : Which among the following is an incorrect pair?
Natural source Acid
I. Vinegar 1. Acetic acid
II. Curd 2. Lactic acid
III. Tamarind 3. Citric acid
Option 1: I and II
Option 2: II and III
Option 3: Only II
Option 4: Only III
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