What side of a membrane has a higher concentration of the toxin Limbricide after ABC transporter activity?

• A. Inside the cell.
• B. outside the cell.

Answer: (B)

Verified step by step guidance

1. Understand the role of ABC transporters: ABC (ATP-Binding Cassette) transporters are membrane proteins that use the energy from ATP hydrolysis to transport various molecules across cellular membranes.
2. Identify the direction of transport: ABC transporters typically move substances from the inside of the cell to the outside, against their concentration gradient.
3. Consider the nature of Limbricide: Limbricide is a toxin, and cells often use transporters to expel toxins to maintain homeostasis and protect cellular functions.
4. Apply the concept to the problem: Given that ABC transporters move substances out of the cell, the concentration of Limbricide will be higher outside the cell after the activity of the transporter.
5. Conclude based on transporter activity: The ABC transporter activity results in the accumulation of Limbricide outside the cell, thus the concentration is higher outside than inside.