When Oxygen Is Present

question 39

Multiple Choice

When oxygen is present

• A) most animal cells carry on fermentation and produce lactate.
• B) two ATP molecules are produced for each glucose molecule.
• C) most animals convert CO₂ to glucose.
• D) most bacteria and yeasts carry on fermentation.
• E) most animal cells utilize aerobic cellular respiration.

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Definitions:

Melatonin Deficiency

A condition characterized by low levels of melatonin, a hormone that regulates sleep-wake cycles, leading to sleep disturbances.

Insomnia

A sleep disorder characterized by difficulty falling and/or staying asleep, affecting physical and mental health.

Hormone

A chemical substance produced in the body that controls and regulates the activity of certain cells or organs, essential for various bodily functions.

Split-brain Operation

A split-brain operation is a surgical procedure that involves severing the corpus callosum to treat severe epilepsy, leading to a condition where the two hemispheres of the brain cannot directly communicate.