Monocots and dicots are two different types of plants, and their differences are mainly reflected in the morphology of seeds, the structure of endosperms, and the structure of stems.
1. The morphology of the seed.
Monocot seeds have only one leaf, while dicot seeds have two leaves. When the seed germinates, one ** leaf of monocots becomes the first leaf of the seedling, while the two ** leaves of the dicot develop into two leaves of the seedling.
Second, the structure of the endosperm.
Monocots have endosperm in their seeds, and dicots have no endosperm in their seeds. The endosperm is the part of the seed that stores nutrients and provides nutrients for seed germination. The endosperm of monocots is generally more developed, while the endosperm of dicots is relatively smaller.
3. The structure of the stem.
There is no cambium in the stem of monocots, so no new xylem and phloem can be produced, so the stem of monocots will stop growing after a certain stage of growth. Dicotyledons, on the other hand, have cambium layers arranged in rings, which can continuously produce new xylem and phloem, so that the stem continues to elongate.
4. Other differences.
In addition to the above differences, there are some other differences between monocots and dicots. For example, monocots tend to have narrower and longer leaves, while dicots tend to have broader leaves. The flowers of monocots are generally spike-shaped, while the flowers of dicots are generally umbel-shaped. In addition, the pollen of monocots is generally unicellular, while the pollen of dicots is generally multicellular.
In short, monocots and dicots are two different types of plants, and their differences are mainly reflected in the morphology of seeds, the structure of endosperm, and the structure of stems. Understanding these differences helps us better understand the taxonomy and characteristics of plants.
Autumn and Winter Check-in Challenge