11. In the death phase

A. nutrients available for the cells are depleted and begin to die
B. the number of viable cells will increase
C. nutrients available for cells are replenished and start to multiply
D. none of the above

12. The maximum specific growth rate of an organism depends on

A. medium composition
B. temperature
C. pH
D. All of these

13. Which of the following is not correct for the Monod model and the Michaelis Menten Model?

A. The Michaelis Menten model was derived from a curve-fitting exercise
B. The Michaelis Menten model was derived from an analysis of the mechanism of microbial growth
C. The Monod model was derived from an analysis of the mechanism of microbial growth
D. All of the above

14. Bubble column reactor has

A. large height to diameter ratio
B. small height to diameter ratio
C. large diameter to height ratio
D. small diameter to height ratio

15. Why a T-flask used in small-scale cell culture is incubated in a horizontal position?

A. To save space
B. To increase the surface area of the liquid-air interface
C. Both (a) and (b)
D. To increase the rate of oxygen transfer into the liquid