i) Discuss the differences between the growth of bacteria in nature and that in artificial culture.
ii) Explain why salt and sugar have been used to preserve food.
- ?Lv 71 decade agoFavorite Answer
1)In nature bacteria have to compete difference conditions such as sources of food , temperature , water , any presence of growth inhibitor ,......etc . Until the bacteria have good growth conditions they would multiply to form next generations . But in culture , they grow & breed in good conditions .
2)This is because sugar & salt can absorb water even through cells of plants & animals . Most bacteria cannot survive whithout water .