Microbial Growth

Question 1

What happens in binary fission?

Answer 1

1.The cell DNA is replicated
2.The DNA is then divided and atransverse septum will form by the cell memebrane and wall
3.The cell will split into 2 daughter cells

Question 2

What happens in the growth phase?

Answer 2

1. Bacteria is put on a petri dish to see growth
2. The lag phase is the beginning
3. The log phase is where the cells are at optimum growth
4. Stationary phase is no increase due to accumalation of waste products
5. Death phase decrease continued by accumalation of waste products

Question 3

What are the factors effecting bacteria growth?

Answer 3

1. Temp- Bacteria works in different temps
2. PH- bacteria work in different PH wrong one can cause death
3. H20 & osmotic pressure- Bacteria grows best in saturated area of water and if there a increase in pressure will cause the cell to burst
4. Oxygen- Bacteria can be anerobic or aerobic or inbetween so bacteria can work in different conditions

Question 4

How is the growth of bacteria determined?

Answer 4

By the increase in cell number not size increase

Question 5

How does bacteria reproduce?

Answer 5

Binary fission