In our lectures and chapter readings, we learned about the experiments conducted by Frits Went and Charles and Francis Darwin on plant phototropism. Which of the following is a conclusion that the both would agree based on their experiments? Cells on the shaded side of the coleoptile elongate in response to auxin. When shoots are exposed to light, a chemical substance migrates toward the light. Agar contains a chemical substance that mimics a plant hormone. A chemical substance involved in shoot bending is produced in shoot tips. shoot tips have been cut, normal growth cannot be induced.
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Cells on the shaded side of the coleoptile elongate in response to auxin: Both Went and Darwin's experiments showed that auxin is responsible for cell elongation on the shaded side of the coleoptile, causing it to bend towards the light. Show more…
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Who did Charles Darwin collaborate with in his experiments on tropisms? Francis Bacon Isaac Newton Gregor Mendel Francis Darwin Question 2 A seedling with an opaque cap on its tip does not exhibit phototropism. What does this demonstrate? Light is perceived at the tip Auxin is synthesized in the root The cap covers the amyloplasts Auxin transport is not important for this process.
Charles and Francis Darwin discovered that \begin{equation}\begin{array}{l}{\text { (A) auxin is responsible for phototropic curvature. }} \\ {\text { (B) red light is most effective in shoot phototropism. }} \\ {\text { (C) light destroys auxin. }} \\ {\text { (D) light is perceived by the tips of coleoptiles. }}\end{array}\end{equation}
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