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