Reading ComprehensionDifficulty: Hard

PT112 S2 P3 Q16 Explanation

Hormones

A free, expert breakdown of this official LSAT Reading Comprehension question.

TopicsLocal PurposeScience

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Passage

Discussions of how hormones influence behavior have generally been limited to the effects of gonadal hormones on reproductive behavior and have emphasized the parsimonious arrangement whereby the same hormones involved in the biology of reproduction also influence sexual behavior. It has now become clear, however, that other hormones, in addition to their initiated when deviations from normal are quite small, thereby maintaining plasma osmolality within relatively narrow ranges.

In the osmoregulation of body fluids, the movement of water across cell membranes permits minor fluctuations in the concentration of solutes in extracellular fluid to be buffered by corresponding changes in the relatively larger volume of cellular water. Nevertheless, the concentration of solutes in extracellular fluid may at times become elevated or is, only after osmotic dehydration exceeds the capacity of the animal to deal with it physiologically.

What this question is testing

Local Purpose

Your task

Identify why the author included the referenced detail at that point in the passage — its function, not its content.

Common trap

Answers that merely repeat or summarize the topic of the detail instead of describing the role it plays.

Winning move

Ask what job the detail does for the paragraph, then for the passage's broader point.

Reading along? Open the full official question in LawHub — we show a fragment here and keep the reasoning in our own words.

The question
16.

The author of the passage cites the relationship between gonadal hormones and reproductive behavior

Answer choices

  1. Out of Scope9% picked this

    review briefly the history of research into the relationships between gonadal and peptide hormones that has led

    Out of Scope: the history of research The author just states that, "prior to the present discussion, most discussions about how hormones influence behavior have focused on how gonadal hormones influence sexual behavior". She doesn't provide any history on the research that went into that finding. Also, peptides aren't even on the scene yet, so the point she's making about gonadal hormones is not the same as what she'll be saying later about peptide hormones.

  2. Too Strong: decry9% picked this

    decry the fact that previous research has concentrated on the relatively minor issue of the relationships

    We can keep this on a first pass, but ultimately it's too strong to say the author was decrying the previous focus of hormone discussions. It wasn't a tragic lament. It was just a statement. The author isn't necessarily blaming us for having limited our discussions to the relationship between gonadal hormones and sexual behavior. It's only NOW become clear that other hormones are worth talking about. And the author's first sentence wasn't complaining that previous research has concentrated on the relationship between hormones and behavior. It was "complaining" that previous research on the relationship between hormones and behavior has only focused on the relationship between gonadal hormones and sexual behavior.

  3. Correct67% picked this

    establish the emphasis of earlier research into the connections between hormones and behavior before elaborating on the results

    Why this is right

    This accurately describes both what the first sentence says (it establishes the emphasis of earlier research, which was generally limited to talking about how gonadal hormones affected sexual behavior) before then pivoting into the new research we're here to discuss (other hormones can also affect behavior!).

    Skill tested: Local Purpose · how this choice captures the passage's function is the move to repeat next time.

  4. Out of Scope: refuting13% picked this

    introduce a commonly held misconception about the relationships between hormones and behavior before refuting it with the results

    The author isn't refuting what's said in the first sentence. She's just adding onto it. Our discussions of how hormones influenced behavior usually only looked at how one type of hormone affected one type of behavior. But now we know about other hormones and other ways they can affect our behavior.

  5. Contradicted: recent research1% picked this

    summarize the main findings of recent research described in the passage before detailing the various procedures that

    The sentence about gonadal hormones is about past research, not recent research, so the author isn't summarizing recent research by talking about gonadal hormones.

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