Required practical 6 - Aseptic technique

Question 1

Examples of aseptic techniques

Answer 1

• wash hands to remove microbes
• wear gloves to prevent contamination
• burning bunsen nearby to create upward current of air
• disinfect bench to kill microbes and prevent contamination
• flame equipment to sterilise
• lift lid only slightly to prevent entry of microbes

Question 2

Explain why logs are used

Answer 2

RANGE of microbial growth is too large to plot on graph