Plant hormones

Cards (54)

  • What do plants produce that regulate growth and development?
    Chemicals called hormones
  • What is the role of auxins in plants?
    They control growth at the tips of shoots and roots
  • How do auxins move through the plant?
    They move through the plant in solution
  • Where are auxins produced in the plant?
    In the tips of shoots and roots
  • What process do auxins stimulate in cells?
    Cell elongation
  • How do auxins affect plant responses to light?
    They promote growth towards light
  • What happens when a shoot tip is exposed to light?
    It accumulates more auxins on the shaded side
  • How does the distribution of auxins affect shoot growth?
    It causes bending towards the light source
  • What is the effect of auxins on root growth?
    They promote growth downwards
  • How do auxins respond to gravity?
    They promote downward growth of roots
  • What happens to auxin distribution when a root grows sideways?
    More auxins accumulate on the lower side
  • How does gravity affect the growth direction of roots?
    Roots bend downwards due to auxin distribution
  • What type of phototropism do shoots exhibit?
    Positive phototropism
  • What happens when a shoot tip is exposed to light?
    It accumulates auxins on the shaded side
  • How does bending towards light affect a shoot's growth?
    It allows for more light absorption
  • What is the effect of auxins on shoot growth in shaded areas?
    They promote faster growth in shaded areas
  • What type of gravitropism do roots exhibit?
    Positive gravitropism
  • How do roots respond to gravity?
    They grow downwards towards gravity
  • How does the growth of roots differ from shoots in response to gravity?
    Roots grow towards gravity, shoots grow away
  • What is the effect of auxins on root growth?
    They promote downward growth
  • How do auxins affect the growth direction of roots?
    They promote growth towards gravity
  • What happens to the growth of roots when they are exposed to uneven gravity?
    They grow faster on the lower side
  • How does the growth of roots differ from shoots in response to light?
    Roots grow away from light, shoots grow towards
  • What is the effect of auxins on shoot growth in the dark?
    They promote elongation quickly
  • How do auxins affect the growth of shoots in the dark?
    They promote rapid elongation
  • What happens to shoots growing in complete darkness?
    They elongate quickly and bend towards light
  • How does the growth of shoots in the dark compare to those in light?

    They grow faster in the dark
  • What is the effect of auxins on the growth of shoots in light?
    They promote growth towards the light
  • How do auxins influence the direction of shoot growth?
    They cause shoots to bend towards light
  • What happens to auxin levels when a shoot is exposed to light?
    They accumulate more on the shaded side
  • How does the bending of shoots towards light affect their growth?
    It enhances their ability to absorb light
  • What is the effect of auxins on the growth of shoots in the dark?
    They promote rapid elongation
  • How do auxins affect the growth of roots in the dark?
    They promote downward growth
  • What happens to roots growing in complete darkness?
    They grow downwards quickly
  • How does the growth of roots in the dark compare to those in light?
    They grow faster in the dark
  • What is the effect of auxins on the growth of roots in light?
    They promote downward growth
  • How do auxins influence the direction of root growth?
    They cause roots to grow downwards
  • What happens to auxin levels when a root is exposed to light?
    They accumulate more on the shaded side
  • How does the bending of roots towards gravity affect their growth?
    It enhances their ability to anchor in soil
  • What is the effect of auxins on the growth of roots in the dark?
    They promote downward growth