All Free Biology MCQs with Answers
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19844 questions · page 520 of 1985
5191. Acctic acid derived from the word 'Acetum' which means_?
- A. Acctic acid
- B. Bitter
- C. Citric
- D. Vinegar
Explanation: Explanation for this question will be added soon!
Correct answer: Vinegar5192. The formation of acid anhydride from carboxylic acid is a_?
- A. Dehydration reaction
- B. Condensation reaction
- C. Both A and B
- D. None of these
Explanation: The explanation for this question has been added!
Correct answer: Both A and B5193. Protein component of enzyme is called:
- A. Co-enzyme
- B. Co-factor
- C. Apoenzyme
- D. Prosthetic group
Explanation: Explanation for this question will be added soon!
Correct answer: Apoenzyme5194. Catalytic activity of enzyme is enhanced by:
- A. Activator
- B. Coenzyme
- C. Co-factor
- D. Both A and B
Explanation: Explanation for this question will be added soon!
Correct answer: Both A and B5195. Which of the following Is a weaker acid?
- A. HCI
- B. H2SO4
- C. CH3COOH
- D. H3PO4
Explanation: Explanation for this question will be added soon!
Correct answer: CH3COOH5196. Phospho-glyceromulases are example of:
- A. Lyases
- B. Hydrolases
- C. Ligases
- D. Transferase
Explanation: Explanation for this question will be added soon!
Correct answer: Lyases5197. By which of the following way acetamide can be prepared?
- A. Hydrolysis of ethyl chloride
- B. Heating methyl cyanide
- C. Heating ammonium acetate
- D. Heating ethyl acetate
Explanation: Acetamide is produced by heating ammonium acetate.
Correct answer: Heating ammonium acetate5198. Human body contains_kind of proteins?
- A. 60000
- B. Almost 10000
- C. 5000
- D. 20000
Explanation: At least 10,000 different proteins make you what you are and keep you that way. Protein is made from twenty-plus basic building blocks called amino acids
Correct answer: Almost 100005199. On heating, egg albumin is_?
- A. Solubilized
- B. Decomposed
- C. Over cooked
- D. Coagulated
Explanation: Explanation for this question will be added soon!
Correct answer: Coagulated5200. From which of the following sources acetic acid was first isolated?
- A. Butter
- B. Milk
- C. Cheese
- D. Vinegar
Explanation: Acetic acid was first obtained from vinegar.
Correct answer: Vinegar