A Fed-Batch Reactor Is Different from a Chemostat Because a Chemostat

question 53

Multiple Choice

A fed-batch reactor is different from a chemostat because a chemostat culture:

• A)promotes density with a limiting nutrient.
• B)replaces spent media with fresh medium.
• C)has very high cell densities.
• D)uses excess nutrients.
• E)is aerated while a fed-batch culture is anaerobic.

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Definitions:

Eukaryotic Cells

Cells that contain a nucleus enclosed within membranes, distinguishing them from prokaryotic cells. They make up all complex organisms, including humans, plants, and fungi.

Nucleus

(1) The central region of an atom that contains the protons and neutrons. (2) A cell organelle in eukaryotes that contains the DNA and serves as the control center of the cell. (3) A mass of nerve cell bodies in the central nervous system. Compare with ganglion.

Membrane-Enclosed Organelles

Structures within eukaryotic cells that are surrounded by a lipid bilayer membrane, each performing distinct functions vital to the cell’s operation.

Neurotransmitters

Chemical signals used by neurons to transmit impulses across a synapse.