Which of the following substances cannot control the growth of harmful micro organisms?
Answer Details
Isotonic sugar solution cannot control the growth of harmful microorganisms. Isotonic sugar solution has the same concentration of solutes as the microorganisms and as a result, it does not create an environment that is unfavorable for their growth. The other options listed have properties that can control the growth of harmful microorganisms. For example, antibiotics target specific types of bacteria, hypertonic salt solution creates a high concentration of salt that causes the microorganisms to lose water and disinfectants and antiseptics kill or inhibit the growth of microorganisms.