Midterm Phase I Review - MCB 4403

Front

What is Enrichment Media?

Back

A type of culture media that enhances the growth of specific microorganisms, particularly those that are present in low numbers.

Front

What is the Stationary Phase in a growth curve?

Back

A phase where the growth rate slows down and the number of viable cells remains constant due to nutrient depletion or waste accumulation.

Front

What is Aerobic Respiration?

Back

A metabolic process that uses oxygen to convert glucose into ATP, involving the Krebs cycle and electron transport chain.

Front

What evidence supports the Endosymbiotic Theory?

Back

The presence of double membranes, 70s ribosomes, and separate circular genomes in mitochondria and chloroplasts.

Front

What is a Chemolithoautotroph?

Back

An organism that obtains energy by oxidizing inorganic compounds and uses carbon dioxide as its carbon source.

Front

What is the Lag Phase in a growth curve?

Back

The initial phase where microorganisms adapt to their environment before starting to divide.

Front

What is Selective Media?

Back

A type of culture media that inhibits the growth of certain microorganisms while allowing others to grow.

Front

What is the Exponential (Log) Phase in a growth curve?

Back

A phase where cells divide at a constant and rapid rate, leading to exponential growth.

Front

What is Fermentation?

Back

A metabolic process that converts sugars to acids, gases, or alcohol in the absence of oxygen.

Front

What is the role of the Krebs Cycle?

Back

To produce ATP, NADH, and FADH2 through the oxidation of acetyl-CoA derived from carbohydrates, fats, and proteins.