Green plants absorb light energy using chlorophyll in their leaves. They use it to react carbon dioxide with water to make a sugar called glucose. The glucose is used in respiration‚ or converted into starch and stored. Oxygen is produced as a by-product. This process is called photosynthesis. Temperature‚ carbon dioxide concentration and light intensity are factors that can limit the rate of photosynthesis. Plants also need mineral ions‚ including nitrate and magnesium‚ for healthy growth. They
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between plants and people is made possible by the differences between cellular respiration and photosynthesis. While cellular respiration occurs in all living organisms‚ photosynthesis relies on chlorophyll and is unique to plants‚ algae‚ and some bacteria. Respiration and photosynthesis are essentially the same process in reverse. During photosynthesis CO2 and H2O are converted to glucose and oxygen‚ while cellular respiration uses glucose and oxygen which are converted to CO2 and H20. Plants utilize
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Role of mycorrhizas in the mineral nutrition of host plants Mycorrhizas are very important in the uptake of nutrients such as P‚ N‚ K‚ Cu‚ Zn and Ca by plants especially in soils low in these nutrients. Since P is the most limiting nutrient in tropical soils‚ mycorrhizas are vital for improving P nutrition particularly for cultivated plants. External hyphae can absorb and translocate P to the host from soil outside the root depletion zone. The thin mycorrhizal hyphae (2-4 μm in diameter) are able
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LEAVES BIODIVERSITY HOTSPOTS? A. ELIZABETH ARNOLD1 AND F. LUTZONI Department of Biology‚ Duke University‚ Durham‚ North Carolina 27708 USA Abstract. Fungal endophytes are found in asymptomatic photosynthetic tissues of all major lineages of land plants. The ubiquity of these cryptic symbionts is clear‚ but the scale of their diversity‚ host range‚ and geographic distributions are unknown. To explore the putative hyperdiversity of tropical leaf endophytes‚ we compared endophyte communities along
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LIST OF IMPORTANT MEDICINAL PLANTS AND THEIR USES NB: (Fam - Family‚ T – Tree‚ H – Herb‚ C – Climber‚ S- shrub) Plant Common name / Maturity period Amla ( T )After 4th year Botanical Name Parts or Family Used Emblica officinalis Fruit Fam euphorbiaceac Saraca Asoca Bark Fam : Flower Caesalpinanceac Withania Root‚ Somnifera Leafs Fam: Solanaccac Average Medicinal Use Price( Rs. / Kg ) Rs 15 – Vitamin – C‚ Cough 45/kg ‚ Diabetes‚ cold‚ Laxativ‚ hyper acidity. Dry Bark Menstrual Pain‚ Rs 125/kg uterine
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Carnivorous Plants In a world where plants are at the bottom of the food-chain‚ some individual plant species have evolved ways to reverse the order we expect to find in nature. These insectivorous plants‚ as they are sometimes called‚ are the predators ‚ rather than the passive prey. Adaptations such as odiferous lures and trapping mechanisms have made it possible for these photosynthesizers to capture‚ chemically break-down and digest insect prey (and in some cases even small animals.) There
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PLANTS AND HUMAN BEINGS Plants and humans are living things that constitute part of the environment. These two depend on each other for their survival. But as plants can live without humans‚ humans can not live for long without plants and this essay explains why this is possible. Plants have the capability to build up organic substances they need from inorganic substances. They only need carbon dioxide‚ water and salts to make their essential substances. Glucose for example is produced from these
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started growing plants and herbs - think the best organic cilantro you’ll taste - from seeds. In the process of growing and living with plants‚ I’ve observed them enough to pick up a few life lessons. I didn’t realize how disconnected I was with nature‚ until I started having to water baby plants every day with a mister‚ and checking to see if any leaves had discoloration on my older plants.
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Many different plant and animal species thrive in the rainforest environment‚ but it is the trees that define the way we see the rainforest. From the air‚ a rainforest looks like an enormous‚ green carpet. The canopy very rarely breaks‚ with no gaps between the trees. Beneath these trees‚ there are thousands of different types of plants. Living amongst the trees‚ vines‚ shrubs‚ ferns‚ and mosses are many different types of animals. These range from the smallest ant to the carnivorous (meat-eating)
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Internal Structure Of A Plant PLANT CELL STRUCTURE Plant cells are classed as eukaryotes organisms‚ because they have a membrane enclosed nuclei and organelles. Here is a diagram of a plant cell;  Cytoplasm Most chemical reactions take place here. It helps the cell maintain it’s shape. Nucleus The nucleus has two main roles. Firstly it contains all the cells genetic information. Secondly it coordinates the cell’s activities‚ which include growth‚ intermediary metabolism‚ protein synthesis
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