All Free Biology MCQs with Answers
Every Biology question in the bank, across all chapters, each with the correct answer and a written explanation. Free and unlimited, with no account needed.
19844 questions · page 518 of 1985
5171. Legumine & collagen proteins are present in which type of body tissues:
- A. Cardiac
- B. Epithelial
- C. Connective
- D. Epidermis
Explanation: Connective tissues are the tissues that bind and support other tissues in the body. They are made up of collagen, elastin, and other proteins. Collagen is the most abundant protein in the body, and it is responsible for giving connective tissues their strength and flexibility. Leguminous proteins are also found in connective tissues, and they help to provide strength and structure.
Correct answer: Connective5172. Proteins are_in structure?
- A. Two dimensional
- B. Unidimensional
- C. Three dimensional
- D. None of these
Explanation: Proteins are three-dimensional in structure. This means that they have a complex shape that is determined by the sequence of amino acids in the polypeptide chain. The three-dimensional structure of a protein is essential for its function.
Correct answer: Three dimensional5173. Enzymes which bring about exchange of functional groups are called_.
- A. Oxidoreductase
- B. Hydrolases
- C. Ligases
- D. Transferases
Explanation: Explanation for this question will be added soon!
Correct answer: Transferases5174. In a carboxylic acid dimer, how many H-bonds are present?
- A. Three
- B. Two
- C. Five
- D. One
Explanation: Explanation for this question has been added!
Correct answer: Two5175. The strongest acid among the following is
- A. Carbolic acid
- B. H2O
- C. Methanol
- D. Formic acid
Explanation: Explanation for this question has been added!
Correct answer: Formic acid5176. Which of the following carboxylic acids is used as solvent in the labs?
- A. Butanoic acid
- B. Hexanedioic acid
- C. Phthalic acid
- D. Acetic acid
- E. both A and D
Explanation: Explanation for this question has been added!
Correct answer: both A and D5177. Lactoglobulin a simple protein is found in muscles as well as in_too.
- A. Fish
- B. Liver
- C. cow milk
- D. Plants
Explanation: Explanation for this question will be added soon!
Correct answer: cow milk5178. Which enzyme is raised in rickets?
- A. Alkaline phosphatase
- B. Acidic phosphatase
- C. LDH-1
- D. None
Explanation: Explanation for this question will be added soon!
Correct answer: Alkaline phosphatase5179. Which of the carboxylic acid is used in medicine as local irritant?
- A. Formic acid
- B. Acetic acid
- C. Benzoic acid
- D. Amino acid
Explanation: Explanation for this question has been added!
Correct answer: Acetic acid5180. Flavour of orange is due to the presence of_ester?
- A. Benzyl acctate
- B. Octyl acctate
- C. Amyl butyrate
- D. Ethyl butyrate
Explanation: Benzyl acetate has Jasmine flavour. Octyl acetate has orange flavour. Amyl butyrate has banana flavour. Ethyl butyrate has pineapple flavour. Hence, option B is correct.
Correct answer: Octyl acctate