A Suspension of Yeast Supplied with Glucose as Its Source

question 224

Multiple Choice

A suspension of yeast supplied with glucose as its source of energy was transferred from an aerobic environment to an anaerobic one.Which result would you predict for the rate of glucose utilization and the rate of ethanol production after the transfer? Assume that the yeast must expend the same amount of energy to survive in both environments.

• A) Glucose usage would decrease, and ethanol production would increase.
• B) Glucose usage would increase, and ethanol production would decrease.
• C) Both glucose usage and ethanol production would increase.
• D) Neither glucose usage nor ethanol production would change.
• E) Glucose usage would not change, and ethanol production would increase.

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Definitions:

Tibialis Anterior

A muscle in the lower leg that is involved in dorsiflexion and inversion of the foot.

Biceps Femoris

A muscle of the posterior thigh involved in knee flexion and hip extension, part of the hamstrings group.

Extensor Digitorum Longus

The extensor digitorum longus is a muscle in the lower leg that helps extend the toes and dorsiflex the foot, facilitating walking and running.

Sartorius

The longest muscle in the human body, extending from the hip to the knee, involved in flexing, abducting, and rotating the thigh.