Escherichia coli preferentially utilizes glucose by preventing the uptake of lactose and switching off transcription of the lac operon. This mechanism is known as 

TLS Online TPP Program

#Question id: 15255

#Unit 2. Cellular Organization

Small organic molecules that usually make up all or part of enzyme cofactors and only very small amounts sustain growth

TLS Online TPP Program

#Question id: 15254

#Unit 2. Cellular Organization

For growth, most bacteria require water activity levels above

TLS Online TPP Program

#Question id: 15253

#Unit 2. Cellular Organization

The water activity in foods that have high levels of salt or sugar is

TLS Online TPP Program

#Question id: 15252

#Unit 2. Cellular Organization

A process in which a suspension of microbes is quickly frozen at temperatures ranging from - 54°C to -72°C, and the water is removed by a high vacuum (sublimation) 

TLS Online TPP Program

#Question id: 15251

#Unit 2. Cellular Organization

The alga Dunaliella viridis tolerates high concentrations of

TLS Online TPP Program

#Question id: 15250

#Unit 2. Cellular Organization

Osmotolerant microorganisms can survive at extreme osmotic pressure because