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6. Explain why yeast is used in bread production?
- The aerobic respiration enables the bread to rise because of Carbon dioxide
- The Anearboic respiration causes the bread to rise because of gases produced
- It makes it taste good when it breaks down the starch
7. What is the point of a water cooling jacket in a fermenter?
- Because it needs to be very cold
- It creates insulation and prevents it over heating (this stops enzymes dentauring and the yeild being affected)
- A water cooling jacket makes the fermenter look more attractive
8. Who discovered Penicillin?
- Alexander Flemming
- Louis Pastuer
- Louis Flemming
9. What is malting in beer production?
- Keeping the grains warm with water
- Keeping the grains cool with water
- Add volime to the grains with water
10. What is the main gas composed in Biogas?
- Methane
- Oxygen fed into the chamber
- Carbon dioxide