23. What is the plant
coleoptile? Why does the
removal of the coleoptile
extremity disallow plant
growth?

Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
Coleoptile is the first ( or more)
aerial structure the sprouting plant
that from the seed. It
the young stem and first leaves,
protecting them.

top of the coleoptile is the
region where are made. If this
is removed, plant growth
since auxins are necessary promote
growth and tissue .