To answer this question, we need to know the specific drug in question, as different drugs have different mechanisms of action and cause different metabolic changes in a cell. However, I can provide a general overview of how drugs can affect cellular metabolism.When a cell is exposed to a drug, the drug molecules interact with specific target molecules within the cell, such as enzymes, receptors, or transport proteins. This interaction can either activate or inhibit the target molecule's function, leading to changes in the cell's metabolic processes.Here are some general mechanisms by which drugs can cause metabolic changes in a cell:1. Enzyme inhibition: Some drugs act as inhibitors of specific enzymes, which can slow down or block a metabolic pathway. For example, statins are drugs that inhibit the enzyme HMG-CoA reductase, which is involved in cholesterol synthesis. By inhibiting this enzyme, statins reduce cholesterol production in the cell.2. Enzyme activation: Some drugs can activate enzymes, leading to an increase in the rate of a metabolic pathway. For example, certain drugs used to treat Parkinson's disease, such as levodopa, are converted into dopamine by the enzyme dopa decarboxylase, increasing dopamine levels in the brain.3. Receptor activation or inhibition: Drugs can also interact with cell surface receptors, either activating or inhibiting the receptor's function. This can lead to changes in intracellular signaling pathways and affect various metabolic processes. For example, beta-blockers are drugs that inhibit the beta-adrenergic receptors, reducing the effects of adrenaline and noradrenaline on the cell and leading to a decrease in heart rate and blood pressure.4. Transport protein modulation: Some drugs can affect the function of transport proteins, which are responsible for moving substances across cell membranes. For example, certain antidepressants, such as selective serotonin reuptake inhibitors SSRIs , block the serotonin transporter, leading to an increase in serotonin levels in the synaptic cleft and ultimately affecting neuronal signaling.5. Allosteric modulation: Some drugs can bind to a specific site on a target molecule, distinct from the active site, and cause a conformational change that affects the molecule's function. This can either enhance or inhibit the target molecule's activity, leading to changes in cellular metabolism.These are just a few examples of how drugs can cause metabolic changes in a cell. The specific metabolic changes and mechanisms depend on the drug and its target molecules within the cell.