PLANT



The “Nature of Plants” provides a general overview of the unique structure, function, and evolution of plants and serves as a general introduction to the larger textbook. The chapter begins discussing the importance of pigments that provide the ability to harvest light via photosynthesis, leading the way for producing anabolic compounds necessary for growth. This chapter contains information that identifies other important aspects of plants such as cell walls, plant life cycles, meristematic growth, and fruit dispersal that is limited to the angiosperms. A general discussion of plant evolution, organs, and plant diversity is included. The chapter concludes by clarifying the importance of scale in understanding plant structures and by identifying the many ways that the terms, primary and secondary, are associated with plant development and anatomy.

Technically a plant that was pollinated by us or a European bee would not be 'natural'. ... What's maddening is natural plants has more traffic than native plants or where to buy plants.

Good reasons remain to study the basic life processes of plants. Research on plants enriches our intellectual life and adds to our knowledge about other life processes. The results of research on plant systems also can teach us how to approach problems in agriculture, health, and the environment.

Botany, also called plant science(s), plant biology or phytology, is the science of plant life and a branch of biology. A botanist, plant scientist or phytologist is a scientist who specialises in this field. The term "botany" comes from the Ancient Greek word βοτάνη (botanē) meaning "pasture", "grass", or "fodder"; βοτάνη is in turn derived from βόσκειν (boskein), "to feed" or "to graze".Traditionally, botany has also included the study of fungi and algae by mycologists and phycologists respectively, with the study of these three groups of organisms remaining within the sphere of interest of the International Botanical Congress. Nowadays, botanists (in the strict sense) study approximately 410,000 species of land plants of which some 391,000 species are vascular plants (including approximately 369,000 species of flowering plants), and approximately 20,000 are bryophytes.

Botany originated in prehistory as herbalism with the efforts of early humans to identify – and later cultivate – edible, medicinal and poisonous plants, making it one of the oldest branches of science. Medieval physic gardens, often attached to monasteries, contained plants of medical importance. They were forerunners of the first botanical gardens attached to universities, founded from the 1540s onwards. One of the earliest was the Padua botanical garden. These gardens facilitated the academic study of plants. Efforts to catalogue and describe their collections were the beginnings of plant taxonomy, and led in 1753 to the binomial system of Carl Linnaeus that remains in use to this day.

In the 19th and 20th centuries, new techniques were developed for the study of plants, including methods of optical microscopy and live cell imaging, electron microscopy, analysis of chromosome number, plant chemistry and the structure and function of enzymes and other proteins. In the last two decades of the 20th century, botanists exploited the techniques of molecular genetic analysis, including genomics and proteomics and DNA sequences to classify plants more accurately.

Modern botany is a broad, multidisciplinary subject with inputs from most other areas of science and technology. Research topics include the study of plant structure, growth and differentiation, reproduction, biochemistry and primary metabolism, chemical products, development, diseases, evolutionary relationships, systematics, and plant taxonomy. Dominant themes in 21st century plant science are molecular genetics and epigenetics, which are the mechanisms and control of gene expression during differentiation of plant cells and tissues. Botanical research has diverse applications in providing staple foods, materials such as timber, oil, rubber, fibre and drugs, in modern horticulture, agriculture and forestry, plant propagation, breeding and genetic modification, in the synthesis of chemicals and raw materials for construction and energy production, in environmental management, and the maintenance of biodiversity.

Plants are really important for the planet and for all living things. Plants absorb carbon dioxide and release oxygen from their leaves, which humans and other animals need to breathe. Living things need plants to live - they eat them and live in them. Plants help to clean water too.

Plant Growth. Plants are vital to all life on Earth. They are important because plants take in carbon dioxide from the atmosphere and produce oxygen. In addition, plants make up the base of the food web by producing their own food using light, water, carbon dioxide, and other chemicals.

Positively Impact a Person's Psyche

In fact, according to a 1993 study looking at the effects of plants on human perceptions and behavior, plants positively affect a person's psyche. ... Indicating both preferences for areas with plants as well as improved mood and psyche in areas where plants are present.

Uses of Plants

  • Food: Plants are the main source of our food. ...
  • Medicines: Many medicines are made from plants and these plants are called medicinal plants. ...
  • Paper: Bamboo, eucalyptus, etc. ...
  • Rubber: Some plants give us gum like acacia, etc. ...
  • Wood: We get timber and fire- wood from trees. ...
  • Cotton: We get cotton from cotton plants.

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