Eukaryotic Cells Require Oxygen To

question 37

Multiple Choice

Eukaryotic cells require oxygen to:

• A)enter the Krebs cycle as an intermediate.
• B)perform fermentation.
• C)breathe.
• D)serve as an electron acceptor in the electron transport chain.
• E)start glycolysis.

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Definitions:

Epicranius

A muscle of the scalp that raises the eyebrows and wrinkles the forehead horizontally.

Platysma

A superficial muscle in the neck that plays a role in facial expression.

Risorius

A muscle of facial expression, drawing the corner of the mouth laterally, thus creating expressions like grinning.

Lateral Pterygoid

A muscle of the jaw involved in opening the mouth and moving the jaw from side to side.