Refer to the Accompanying Figure and the Molecules Labelled A

question 40

Multiple Choice

Refer to the accompanying figure and the molecules labelled A, B, C, D and E. If the carbon atom of each of the incoming CO₂ molecules is labelled with a radioactive isotope of carbon, which organic molecules will be radioactively labelled after one cycle?

• A) C only
• B) B, C, D and E
• C) C, D and E only
• D) B and C only

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Definitions:

Parkinsonian Symptoms

A set of movement abnormalities seen in Parkinson's disease, including tremors, stiffness, and slowness of movement.

Antipsychotic Drugs

Medications used to manage psychosis, including schizophrenia, by affecting neurotransmitter levels in the brain to reduce symptoms like hallucinations and delusions.

Substantia Nigra

A brain structure located in the midbrain, crucial for movement control and implicated in disorders like Parkinson's disease.

Prefrontal Cortex

The front part of the frontal lobes of the brain, implicated in a variety of complex behaviors including planning, and deeply involved in personality development.