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Plant - Wikipedia. Plants are the eukaryotes that form the kingdom Plantae; they are predominantly photosynthetic. This means that they obtain their energy from sunlight, using chloroplasts derived from endosymbiosis with cyanobacteria to produce sugars from carbon dioxide and water, using the green pigment chlorophyll.
- Diaphoretickes
- Plantae, H.F.Copel., 1956
2 天前 · 植物(英語: plant )是植物界(Plantae)各式生物的統稱,對於其範圍,在歷史上多有變動。 在前林奈時代到 林奈 時代,除了現今所熟知的植物類群外, 原核生物 、 真菌 及 藻類 因不能主動運動或能進行 光合作用 等與植物類似的特性,也被劃分進 ...
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植物 (英語: plant )是 植物界 (Plantae)各式生物的统称,对于其范围,在历史上多有变动。 在前林奈时代到 林奈 时代,除了现今所熟知的植物类群外, 原核生物 、 真菌 及 藻类 因不能主动运动或能进行 光合作用 等与植物类似的特性,也被划分进植物界内 [2] 。 而根据 恩斯特·海克尔 、 罗伯特·魏泰克 、 琳·馬古利斯 、 湯瑪斯·卡弗利爾-史密斯 等生物学家的进一步研究,原核生物、真菌和部分藻类先后被排除出植物界 [3] [4] [5] 。
- 真核域 Eukaryota
- 植物界 Plantae, H.F.Copel., 1956
- 多貌生物 Diaphoretickes
- Types of Plants
- The Plant Food Factory
- Roots
- Flowering Plant Reproduction
- Fossils
- Related Pages
Green algae: 1. Chlorophyta 2. Charophyta Land plants (embryophyte) 1. Non-vascular plants (bryophytes): 1.1. Liverworts 1.2. Mosses 1.3. Hornworts 1.4. †Horneophytopsida 2. Vascular plants (tracheophytes) 2.1. Lycopodiophyta—clubmosses 2.2. Pteridophyta: the ferns 2.2.1. Pteridopsida: the typical ferns 2.2.2. Sphenopsida: the horsetails 2.2.3. Mar...
At least some plant cells contain photosynthetic organelles (plastids) which enable them to make food for themselves. With sunlight, water, and carbon dioxide, the plastids make sugars, the basic molecules needed by the plant. Free oxygen (O2) is produced as a by-product of photosynthesis. Later, in the cell cytoplasm, the sugars may be turned into...
The roots of plants perform two main functions. First, they anchor the plant to the ground. Second, they absorb water and various nutrients dissolved in water from the soil. Plants use the water to make food. The water also provides the plant with support. Plants that lack water become very limp and their stems cannot support their leaves. Plants w...
Flowers and pollination
Flowers are the reproductive organ only of flowering plants (Angiosperms). The petals of a flower are often brightly colored and scented to attract insects and other pollinators. The stamen is the male part of the plant. It is composed of the filament (a stalk) that holds the anther, which produces the pollen. Pollen is needed for plants to produce seeds. The carpel is the female part of the flower. The top part of the carpel contains the stigma. The style is the neck of the carpel. The ovary...
Seed travelers
A plant produces many spores or seeds. Lower plants such as moss and ferns produce spores. The seed plants are the Gymnospermsand Angiosperms. If all the seeds fell to the ground besides the plant, the area might become overcrowded. There might not be enough water and minerals for all the seeds. Seeds usually have some way to get to new places. Some seeds can be dispersed by the wind or by water. Seeds inside juicy fruits are dispersed after being eaten. Sometimes, seeds stick to animals and...
The question of the earliest plant fossils depends on what is meant by the word "plant". 1. If by plants we mean phototrophs using chlorophyll, then cyanobacteria in stromatolites are the first fossils, 3,450 million years ago (mya) in the Archaean eon. The remarkable precision is possible because the fossils were sandwiched between lava flows that...
- Plantae, sensu Copeland, 1956
Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (/ ˌ æ n dʒ i ə ˈ s p ər m iː /), commonly called angiosperms. They include all forbs (flowering plants without a woody stem), grasses and grass-like plants, a vast majority of broad-leaved trees , shrubs and vines , and most aquatic plants .
维管植物 ( 学名 : Tracheophyta )或作 维管束植物 [1] ,是指具有 维管组织 的植物,這些組織中可將液體作快速的流動,在體內运输水分和养分,它包括 蕨类植物 和 种子植物 [2] 。 种子植物又分为 裸子植物 和 被子植物 。 全球已发现的维管植物约在30~40万种之间 [3] 。 辨别方法. 维管植物有两个重要的辨别方法: 维管植物具有维管组织,因而得以支撑生长到一个较大的体积。 非维管植物则一直保持着较小的体积。 在维管植物,其主要生成階段是 孢子體 。 在 木質部 (主要)和 韌皮部 (次要),水分皆會被不停運送:木質部將水和無機溶質從根部運送往 葉 片(單向往上),而韌皮部則會把植物中的有機溶質運送往全株植物(雙向)。
Plant anatomy or phytotomy is the general term for the study of the internal structure of plants. Originally, it included plant morphology, the description of the physical form and external structure of plants, but since the mid-20th century, plant anatomy has been considered a separate field referring only to internal plant structure.