Central Dogma (T)

Question 1

Main laboratory ware used in dilution plate counts

Answer 1

petri dish

Question 2

Microorganisms produced per unit substrate utilized

Answer 2

Growth Yield

Question 3

CFU

Answer 3

Colony Forming Units

Question 4

Measure particle size distribution of cells in a culture.

Answer 4

Particle Counter

Question 5

A measure of the amount of light that passes through a turbid sample.

Answer 5

Optical Density

Question 6

Typically used as seed in batch culture.

Answer 6

inoculum

Question 7

Oxygen solubility in water at 25 deg C and 1 Atm

Answer 7

7 PPM

Question 8

Typical cause of limited oxygen transfer rate

Answer 8

Stagnant liquid around bubble

Question 9

Affect the transport of certain nutrients in and out of the cell

Answer 9

ionic strength

Question 10

Dissolved gas toxic to some organisms at high cone

Answer 10

dissolved carbon dioxide

Question 11

Catabolism of cellular reserves for continued maintenance and energy.

Answer 11

endogenous respiration

Question 12

Cell growth equation.

Answer 12

mu = 1/X * d/dt (X)

Question 13

Cell produce secondary metabolites

Answer 13

Stationary Phase

Question 14

Adaptation to new environment

Answer 14

Lag Phase

Question 15

Cell physiology changes to favor survival over growth

Answer 15

Deceleration Phase

Question 16

cryptic growth occurs

Answer 16

Stationary Phase

Question 17

extended by low temperature

Answer 17

Lag Phase

Question 18

Commonly molded as a 1st order process with respect to biomass

Answer 18

Death Phase

Question 19

Growth balanced

Answer 19

exponential growth phase

Question 20

Some portion of cells remain viable for a long time, but are altered

Answer 20

Death Phase

Question 21

No dependence on substrate concentration

Answer 21

exponential growth phase

Question 22

Caused by either build-up of toxic products or depletion of substrate

Answer 22

Deceleration Phase

Question 23

Primary metabolites produced

Answer 23

exponential growth phase

Question 24

No cell division occurs

Answer 24

Stationary Phase