What makes soap work against bacteria?
  • 1. What is the primary component of soap?
A) Proteins
B) Minerals
C) Fatty acids
D) Sugars
  • 2. How does soap work to remove bacteria?
A) Increasing temperature
B) Absorbing water
C) Disrupting cell membranes
D) Tightening cell walls
  • 3. Why is soap better than plain water for cleaning?
A) It is more acidic
B) It removes oil and grease
C) It sterilizes surfaces
D) It smells better
  • 4. What types of bacteria does soap effectively remove?
A) Both gram-positive and gram-negative
B) Only gram-negative
C) Only gram-positive
D) None
  • 5. What is the minimum washing duration recommended for effectiveness?
A) 5 seconds
B) 20 seconds
C) 10 seconds
D) 1 minute
  • 6. How does soap impact the environmental surface tension?
A) Has no impact
B) Reduces it
C) Makes it sticky
D) Increases it
  • 7. Why is it important to rinse with water after using soap?
A) To activate the soap
B) To cool down
C) To dilute the soap
D) To remove the soap and trapped germs
  • 8. What happens to soap molecules in water?
A) They solidify
B) They form micelles
C) They evaporate
D) They precipitate
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