MP Higher Secondary Teacher Selection Exam – Biology (1 October 2025)

1. What is the approximate binary fission time (in minutes) of rapidly growing bacteria?
   A. 30    B. 60    C. 90    D. 120
   Correct Answer: A. 30
2. The adequacy of milk pasteurization is checked using which test?
   A. MBR    B. COB    C. TB Germ    D. Phosphatase
   Correct Answer: D. Phosphatase
3. Which of the following is essential for infants?
   A. Arginine    B. Leucine    C. Threonine    D. Histidine
   Correct Answer: D. Histidine
4. The Folin-Lowry method is used to estimate:
   A. Fat    B. Protein    C. Sugar    D. None of these
   Correct Answer: C. Sugar
5. In unripe fruits, most pectin is found in the form of:
   A. Protein    B. Protopectin    C. Both A and B    D. None of these
   Correct Answer: C. Both A and B