Which part of the leaf is the petiole and which part of the leaf is the petiole leaf tray?

The petiole is an important organ of the plant, it is the connecting part of the leaf and the stem of the plant, the petiole mainly plays the role of transmission and support, and the petiole generally grows at the bottom of the leaf.

The petioles are usually round or flattened, but they vary from plant to plant, with a few plants having petioles that grow in the middle of the leaves, or more downward, such as lotus.

Some plants do not have petioles, the leaves are directly connected to the stem of the plant, this is commonly called sessile leaves, a leaf is mainly composed of petioles, leaf receptacles, and leaves, the petioles mainly play a connecting role, if the petiole is damaged, the leaf will fall.

The petiole can also change the direction and position of the leaves, and when there is a large overlap of leaves, the petiole will play its role, twisting the growth of the branches and leaves of the plant, so that the leaves do not overlap each other, and can also better receive sunlight and promote photosynthesis of the leaves.

The petiole is the part of the leaf that connects to the stem.

It is an important part of the leaves, the main role is to channel and support the leaves, the petioles of different plants are also different, and some plants do not have petioles. The petiole can also change the direction of the leaves, and when there is a dense overlap, the petioles will adjust the direction of the leaves, promoting photosynthesis of the branches.

Photosynthesis is usually the process by which green plants (including algae) absorb light energy and synthesize carbon dioxide and water into energetic organic matter while releasing oxygen. It mainly includes two stages: light reaction and dark reaction, which involves important reaction steps such as light absorption, electron transfer, photosynthetic phosphorylation, and carbon assimilation, which is of great significance for realizing the energy conversion in nature and maintaining the carbon-oxygen balance of the atmosphere.

Petioles: The part of the leaf that connects with the branch (or stem). Example: When you pick a leaf, the thin stem you hold in your hand is the petiole.

Leaf receptacle: The tail of the petiole protects the leaf, which is generally a small sheet. The leaf tray is also called the leaf tray, which generally grows out before the leaf and plays a role in protecting the young leaves and buds in the early stage. Some plants will naturally fall off when the leaves grow up.

The stem is one of the six organs of the plant, which transports the water and nutrients absorbed by the roots to the leaves, and acts as a support for the plant to grow upright. In addition, the stem can also store nutrients, after all, rhizomes, bulbs, tubers, etc., they all store nutrients. In addition to this, some green stems can do photosynthesis.

The petiole is the part of the leaf that connects with the stem, the upper end of which is connected to the leaf, and the lower end is attached to the stem, usually the petiole is located at the base of the leaf. The petioles of a few plants are born on the leaves** or slightly below, which is called shield-like growth, such as lotus and golden vine.

The petioles are usually thinly cylindrical, flattened, or furrowed.

The main function of the petiole is to conduct and support. The petioles are generally cylindrical, semi-cylindrical or slightly flattened, and their shape varies greatly depending on the plant species. Some plants have enlarged joints at the base of the petioles, called leaf pillows; Some plant leaves are degraded, and the petioles are flattened into leaf-like shapes to replace the function of leaves; In some plants, the base or petiole of the petiole is all enlarged into a sheath, called a leaf sheath.

The body of the leaf is the rhizome of the leaf.

The leaf body is composed of three parts: epidermis, mesophyll and veins. Leaves are important organs for plants to produce nutrients and are responsible for photosynthesis.

and important places of respiration.

The essence of photosynthesis is the passage of green plants through chloroplasts.

Using light energy, take carbon dioxide.

and water to synthesize organic matter, and the process of releasing oxygen.

Respiration is the process by which plants absorb oxygen, break down organic matter into carbon dioxide and water, and release the energy needed for plant growth.

The leaf body is the part that connects the leaf and the stem, the upper end is connected to the leaf, and the lower end is connected to the stem, and the petiole is very small, but the function is very powerful.

The main function of the petiole is to conduct and support, and there are vascular bundles inside the petiole.

It is the main channel for water and nutrient transport between stems and leaves, and mooncakes are generally cylindrical or slightly flattened.

Leaves, one of the vegetative organs of vascular plants. Its function is to carry out photosynthesis to synthesize organic matter, and it has transpiration.

Provides the power for the root system to absorb water and mineral nutrients from the outside world. Those with three parts: leaf, petiole and supporting leaf are called "complete leaves", such as missing petioles or supporting leaves are called "incomplete leaves"; It is divided into single leaf and compound leaf.

Leaves are the most environmentally sensitive organs in plants, and their morphological structure is the most likely to change with different ecological conditions to adapt to the environment. The leaves of different plants have a variety of forms, different sizes and different shapes.

However, as far as a plant is concerned, it is relatively stable and can be used as a basis for identifying plants and taxonomic them. At the same time, the leaf color is also diverse, and in general, chlorophyll and carotenoids are found in normal leaves.

The molecular ratio is about 3:1, which gives the leaves a green color.

Leaves are generally composed of three parts: leaves, petioles and supporting leaves, such as the leaves of cotton, peach peas and other plants, and these three parts are called complete leaves.

The leaves that lack any or two of these parts are called incomplete leaves, such as sweet potato, rape, sunflower, etc., and the leaves lack supporting leaves; The leaves of tobacco, lettuce, etc., lack petioles and supports; There are also some plants that have no leaves at all, only a flattened petiole that grows on the stem, called a leaf-like stalk, such as the Taiwan acacia tree. Wait.

No, those with leaves, petioles and pedicles are called complete leaves, and some are called incomplete leaves.

Incomplete leaves, in the three-part structure of leaves, petioles and leaves, one or two parts of the leaf are missing or two parts are called incomplete leaves. There are fewer leafless leaves, such as the acacia tree in Taiwan, where the leaves are completely degraded, and the petioles are flattened and can carry out photosynthesis, which is called petioles. A complete leaf should have three parts: the leaf, the petiole and the leaf body, which are called complete leaves, such as the leaves of pears, peaches, peas, yueji and other plants.

Many flower friends like to plant plants, but they don't know much about the structure of plants, such as which part of the leaf is the petiole is, many people are not very clear, so let's talk about it in detail.

The petiole is the part of the leaf that connects it to the stem, it can effectively connect it together, and it usually grows at the base of the leaf, the main role is to channel and support the leaf, and the shape is generally cylindrical or flat, but the specific shape should be distinguished according to different plants. However, there are a few plants whose petioles grow in the middle of the leaves, or are slightly lower. The petiole can also change the direction of the leaves, if the leaves appear dense and overlapping, the petiole will adjust the direction of the leaves, so that it can promote the photosynthesis of the branches and leaves, which is beneficial to the growth of the plant, and it can be seen that the petiole plays a vital role in the growth of the plant.

The petiole is the part of the leaf that connects the stem to the stem, which can play the role of channeling and supporting the leaf, and can also change the direction of the leaf to promote photosynthesis of the branch and leaf.

Leaf veins are the bundles of vascular bundles that grow on the leaves, and they are the branches of the vascular bundles in the stem. These vascular bundles are distributed through the petiole to the various parts of the leaf. The large and distinct veins located in the leaf are called midveins or midveins.

The many thinner veins that first branch off from both sides of the midrib are called lateralveins. The veins that originate from the lateral veins and are smaller than the lateral veins are called minorveins.

The veins are staggered throughout, dividing the leaves into countless small pieces. Each small piece has a thin vein tip extending in, forming a transport channel within the leaf, the leaf stem is the middle vertical bar on the leaf, the petiole is the contact part between the leaf and the stem, the upper end is connected with the leaf, the lower end is born on the stem, usually the petiole is located at the base of the leaf. A few plants have petioles that grow on the leaves** or slightly below.