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- Like animals, plants contain cells with organelles in which specific metabolic activities take place. Unlike animals, however, plants use energy from sunlight to form sugars during photosynthesis. In addition, plant cells have cell walls, plastids, and a large central vacuole: structures that are not found in animal cells.
May 18, 2024 · Plants can be divided into two groups: plants\(_1\) and plants\(_2\). Plants\(_1\) contain all photosynthetic organisms which use light, \(\ce{H2O}\), and \(\ce{CO2}\) to make organic compounds and \(\ce{O2}\). Plants\(_1\) are defined ecologically (based on their role in nature). Some plants\(_1\) can be bacteria or even animals!
- Styles of Life and Basic Chemistry
No headers. Life obtains energy in a few different ways: (1)...
- Alexey Shipunov
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- Styles of Life and Basic Chemistry
- Photosynthesis
- Vascular vs. Non-Vascular
- Plant Body Plan
- Angiosperms
- Gymnosperms
- Ferns and Lycophytes
- Non-Vascular Plants
Photosynthesis is a key topic for an introduction to plant biology. It is a process that occurs in plant cellsthat uses the sun’s energy to produce sugars from carbon dioxide and water. The process is simply a series of chemical reactions, probably the most important chemical reactions of Earth. The green color of plants is caused by a molecule cal...
A critical step in the evolution of current plant species was the evolution of vascular tissue. Like humans have vascular tissue that transports blood through our bodies, the majority of species of plants have vascular tissue that transports water and nutrients around their bodies. Before plants evolved vascular tissue, water was only able to enter...
Plants have a relatively simple body plan. A plant can be split into two sections: the underground system known as roots and the above ground system referred to as shoots. The shoots typically include stems, branches and leaves. The evolution of roots was key to the success of plants on land. Roots grow underground in search for water and nutrients...
An angiospermis any plant that produces flowers, fruit, and seeds. They are the most advanced, diverse and abundant group of plants. Angiosperms include the majority of the plants that most people are familiar with such as grasses, orchids, roses, lavender, magnolias, plus the plants that produce the fruits, vegetables, grains and nuts that we regu...
Gymnospermsare the closest relatives of angiosperms. They are a group of woody plants that produce seeds but no flowers or fruit. The seeds of gymnosperms are usually found in cones rather than inside fruit. The world’s largest, tallest, oldest and widest organisms are all gymnosperms. They are incredible plants and some species are known to surviv...
Ferns and lycophytes are non-woody plants and also don’t produce seeds, flowers or fruit. Instead, ferns and lycophytes reproduce using tiny structures called spores. These two groups were once the most common plants of Earth but they have since been outgrown by gymnosperms and angiosperms. Still, around 12,000 species of ferns and 1,200 species of...
Besides lacking tissue, non-vascular plants also lack wood, roots and flowers. This group of often ignored plants includes mosses, hornworts, liverwortsand (depending on who you’re talking to) some algae. Compared to vascular plants, non-vascular plants are small and they struggle to grow taller than a few centimeters. Mosses are the most common an...
Apr 28, 2017 · Plants are multicellular organisms in the kingdom Plantae that use photosynthesis to make their own food. There are over 300,000 species of plants; common examples of plants include grasses, trees, and shrubs.
Sep 30, 2024 · Botany, branch of biology that deals with the study of plants, including their structure, properties, and biochemical processes. The principles and findings of botany have provided the base for such applied sciences as agriculture, horticulture, and forestry.
In plant biology, plants are, for the most part, photosynthetic eukaryotes that make up the kingdom Plantae. In their respective environments/habitats, plants use water, light energy, and carbon dioxide (these being inorganic substances) to synthesize sugar/nutrients that serve as food for various animals.
3 days ago · The earliest plants undoubtedly evolved from an aquatic green algal ancestor (as evidenced by similarities in pigmentation, cell-wall chemistry, biochemistry, and method of cell division), and different plant groups have become adapted to terrestrial life to varying degrees.
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To know the different plant organs and their functions. To understand common plant processes, such as plant metabolism, growth, hormones, meiosis, and alternation of generations. To be familiar with the different major plant groups: bryophytes, vascular plants, and seed plants.
