Which of these are effects that auxin generally has on plants? Select all answers that apply (there may be only one correct answer).

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BlackTom AI · Accepted Answer

This question asks which effects are generally associated with auxin in plants, and it is a multiple-answer type, so more than one option may be correct.
Option: Inhibits the initiation of roots.
Auxin actually promotes root initiation, especially at the right concentrations and in tissue culture contexts; it is commonly used to induce adventitious root formation. Therefore this statement is inaccurate as a general rule.
Option: Stimulating the enlargement of cells.
Auxin is well known for promoting cell elongation, particularly in the stem by loosening cell walls and enabling expansion. This aligns with the classical role of auxin in driving growth, so this option is correct.
Option: stinulates fruit ripening
There appears to be a typographical error here, but assuming this means stimulates fruit ripening: auxin can influence fruit development and ripening in some contexts, but ethylene is the more direct hormone associated with climacteric fruit ripening. Because the statement is not a canonical, universal action of auxin across all plants, it is generally considered incorrect as a primary or universal effect. The misspelling also signals a low confidence in this being a standard auxin effect, so treat as incorrect for the core concept.
Option: controls apical dominance
Auxin produced in the apical meristem suppresses growth of lateral buds, maintaining apical dominance. This is a classic and central role of auxin in plant architecture, so this option is correct.
Summary: The two clearly correct effects are that auxin stimulates cell elongation and that it controls apical dominance. The first incorrect option stems from a misunderstanding of rooting responses, and the miswritten option about fruit ripening does not reflect auxin’s universal, primary role across contexts. The question requires selecting all true statements, so mark the two accurate ones accordingly.

BIOL 312 BIOL 312 - Exam 2

Which of these are effects that auxin generally has on plants? Select all answers that apply (there may be only one correct answer).

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