Biology 1.1.7

Question 1

What is the process by which Bacteria multiply?

Answer 1

Binary Fission.

Question 2

How does a Bacterial Cell prepare to divide?

Answer 2

Replicates its Genetic Material before increasing its size.

Question 3

What happens before a Bacteria’s Cytoplasm divides?

Answer 3

DNA pairs are pulled to either side, & new Cell Walls from around each Daughter Cell.

Question 4

The effect of Disinfectants & Antibiotics on Microorganisms can be investigates using…?

Answer 4

Cultures of Bacteria grown in the lab.

Question 5

What do Bacteria Cultures need to multiply quickly? (2)

Answer 5

-Nutrients

-Temperature

Question 6

What do you use to transport Microorganisms onto the agar?

Answer 6

Inoculating Loop.

Question 7

Why should you tape and secure the lid of the Petri dish?

Answer 7

To prevent air getting contaminated by the Microorganisms.

Question 8

Mean Division Time:

Answer 8

The average amount of time it takes for a Bacterial Cell in a population to Divide.