Course 01 · Checkpoint 1 of 3 · Tree structures

Checkpoint 1: Tree structures

Roots, trunks and branches, leaves, and buds: what each structure does and how it connects to care decisions.

Before you start

  • 7 questions, each worth one point. Some ask for one answer; others ask you to select a stated number of answers.
  • For questions with several answers, each correct choice earns an equal share of the point.
  • Pass with 80%: at least 6 of 7 points.
  • Untimed and open book. Revisit any lesson while you work.
  • After you submit, you will see every correct answer with an explanation. Retake it as often as you like.

Checkpoint results are not connected to your account yet, so they are not saved.

  1. Question 1 of 7Instructional example: a healthy trident maple bonsai, about 40 cm tall, has reached the size its owner wants. The owner hopes to keep it close to that size for many years and to keep it healthy.Which two practices keep it small without harming its health? Select two.0 of 2 selected
  2. Question 2 of 7Instructional example: a ficus bonsai has grown indoors beside a bright window for more than a year. Its pot has drainage holes, but it sits inside a decorative outer pot with no hole of its own. Over the past two weeks, several leaves have turned yellow and dropped. The top layer of substrate looks dry and pale, so the owner plans to water more often.What is the best next step?
  3. Question 3 of 7The diagram shows a branch cut straight across, with the outer edge of the cut enlarged on the right. It is simplified: the thinnest layers are drawn much thicker than in life, and their colors are chosen only to tell them apart. Each year this branch grows a little thicker. Which letter marks the layer whose dividing cells produce that thickening?
    ABCDE
  4. Question 4 of 7Instructional example: in early summer, a young branch on the ficus, outdoors for the warm months, was wired to lower it, with a plan to remove the wire in autumn. Six weeks later the tree is growing strongly. The bark has started to rise beside the coils, and in two places the wire has pressed a shallow groove into the bark. The leaves beyond the wire are green, and the branch may not yet hold its new position without the wire.What is the best next step?
  5. Question 5 of 7Instructional example: two trident maples of the same size stand side by side in bright midday sun. Tree A was watered thoroughly this morning, and its root zone is still moist. Tree B's root zone has dried out over the morning, although its leaves have not wilted.Compared with Tree A, what is most likely happening in Tree B's leaves?
  6. Question 6 of 7Instructional example: a trident maple has spent its last two growing seasons beneath a large garden tree, shaded for most of the day. This year it has made only a few thin, weak shoots, its leaves are sparse and thin, and several inner twigs have died back. Its owner wants to cut off many of its outer leaves so that more light can reach the inner branches.What is the best starting decision?
  7. Question 7 of 7Instructional example: the nursery juniper is healthy and growing well outdoors in full sun. One low branch reaches well past the outline its owner has in mind; ideally it would be about half as long. Green foliage grows only on its outer quarter, in a few short side shoots; the rest of the branch is bare, brown wood. The owner wants the branch shorter but also wants it to stay alive and keep growing.Which plan fits this branch?

0 of 7 questions answered