It transfers fluid from the proximal to the distal tubule. Loop of Henle: The loop of Henle is a U-shaped tube that consists of a descending limb and ascending limb.I’m thinking this is a viable answer choice, but it’s not as direct as the answers we typically see from AAMC. I mentioned the sodium potassium pump is a player in maintaining blood pressure. Veins: Veins return deoxygenated blood to the heart. We’re going to try and find an answer that matches one of these main functions. Which is to say the pump is obviously important throughout the body. It also helps maintain blood pressure, and plays a role in cardiac contractions. The pump is also used in the kidneys to maintain ion balance in the body. The pump creates gradients in nerve cells, allowing for electrical signals. We have two potassium ions moved into the cell, and three sodium ions moved out of the cell. From our content outline we know that the sodium potassium pump is the most common example of active transport on the MCAT. AAMC loves doing this where they’ll ask you a question that’s tangentially related to the passage, but in reality it’s just a standalone question you can answer using your general knowledge. Even though the passage talked about the sodium pump, I’m leaning toward using my external knowledge of the sodium pump. Biology Question Pack Volume 1: Passage 1ġ) First thing I’m doing is deciding whether I need the information in the passage to answer this question, or whether this is a pseudo-discrete, or standalone question.
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