2003 AP Environmental Science Examination
... (B) Phosphorus cycles very quickly through environments. (C) Under many conditions, phosphorus forms stable insoluble compounds. (D) Phosphate is not readily taken up by plants. (E) There are no anthropogenic sources of phosphorus. 32. Factors contributing to the rise in world hunger include all of ...
... (B) Phosphorus cycles very quickly through environments. (C) Under many conditions, phosphorus forms stable insoluble compounds. (D) Phosphate is not readily taken up by plants. (E) There are no anthropogenic sources of phosphorus. 32. Factors contributing to the rise in world hunger include all of ...
Perennials - PowerPoint file - OSU Phenology Garden Network
... Leopardbane: Short to Med. 14" - Plant 10" apart. Zone 4-8 Brilliant yellow, daisy-like flowers. Fine for cutting in early spring. Plant is dormant in midsummer, the foliage partially disappearing. One of the earliest blooming perennials and an excellent ground cover under shrubs and trees if the so ...
... Leopardbane: Short to Med. 14" - Plant 10" apart. Zone 4-8 Brilliant yellow, daisy-like flowers. Fine for cutting in early spring. Plant is dormant in midsummer, the foliage partially disappearing. One of the earliest blooming perennials and an excellent ground cover under shrubs and trees if the so ...
Nomenclature hand out
... written as such. For monoatomic ions, i) the metal ion’s name is written as the name of the element. ii) the nonmetal ion is written with part of the nonmetal name with ‘ide’ added to it. ...
... written as such. For monoatomic ions, i) the metal ion’s name is written as the name of the element. ii) the nonmetal ion is written with part of the nonmetal name with ‘ide’ added to it. ...
Botanical Features
... Plant Classification and Names Plants are classified according to their assumed relatedness. The species is the basic unit of classification based on the structure of flowers, fruits, and other organs. All species are classified hierarchically. Related species are grouped into a genus; related gener ...
... Plant Classification and Names Plants are classified according to their assumed relatedness. The species is the basic unit of classification based on the structure of flowers, fruits, and other organs. All species are classified hierarchically. Related species are grouped into a genus; related gener ...
Iochroma grandiflorum
... Hort 405 I , Potted Plant Production Class, University of Minnesota In Hort 405 1. students chose two species not previously grown as potted plants to research for potential use as flowering, potted crops. This is the first of many reports on new crops with developmental potential we will provide to ...
... Hort 405 I , Potted Plant Production Class, University of Minnesota In Hort 405 1. students chose two species not previously grown as potted plants to research for potential use as flowering, potted crops. This is the first of many reports on new crops with developmental potential we will provide to ...
John Deere Orthman XDR
... ago and maintain profitability and sustainability; we have to save on input costs and protect our soil,” says George. They decided to curb costs by utilizing whatever means they had to their disposal, therefore their starting point was John Deere’s tried and trusted 1750planter as almost every farme ...
... ago and maintain profitability and sustainability; we have to save on input costs and protect our soil,” says George. They decided to curb costs by utilizing whatever means they had to their disposal, therefore their starting point was John Deere’s tried and trusted 1750planter as almost every farme ...
Sulfur
... →Sulfidic soils or geological materials when drained or exposed lead to acid mine drainage (extreme acidity from oxidation of sulfur or sulfides) o Sulfides in these potential acid minerals are stable in the absence of oxygen o S0 and S2- oxidize when drained or excavated. o pH as low as low as 1.5 ...
... →Sulfidic soils or geological materials when drained or exposed lead to acid mine drainage (extreme acidity from oxidation of sulfur or sulfides) o Sulfides in these potential acid minerals are stable in the absence of oxygen o S0 and S2- oxidize when drained or excavated. o pH as low as low as 1.5 ...
AP Biology 2016 Free-Response Questions
... 1. Leucine aminopeptidases (LAPs) are found in all living organisms and have been associated with the response of the marine mussel, Mytilus edulis, to changes in salinity. LAPs are enzymes that remove N-terminal amino acids from proteins and release the free amino acids into the cytosol. To investi ...
... 1. Leucine aminopeptidases (LAPs) are found in all living organisms and have been associated with the response of the marine mussel, Mytilus edulis, to changes in salinity. LAPs are enzymes that remove N-terminal amino acids from proteins and release the free amino acids into the cytosol. To investi ...
Blue Camassia - Shelmerdine Garden Centre
... Blue Camassia features beautiful spikes of sky blue star-shaped flowers at the ends of the stems from late spring to early summer, which are most effective when planted in groupings. The flowers are excellent for cutting. It's grassy leaves remain green in colour throughout the season. The fruit is ...
... Blue Camassia features beautiful spikes of sky blue star-shaped flowers at the ends of the stems from late spring to early summer, which are most effective when planted in groupings. The flowers are excellent for cutting. It's grassy leaves remain green in colour throughout the season. The fruit is ...
Stachys arvense - Australian Weeds and Livestock
... . Staggers, or shivers after exercise, . Knuckling over at the fetlocks. Health and Production Problems: . Weight loss. . Stock may die from secondary infections. Treatment: . Most stock recover when taken off the weed. . Be aware of potential stock problems. ...
... . Staggers, or shivers after exercise, . Knuckling over at the fetlocks. Health and Production Problems: . Weight loss. . Stock may die from secondary infections. Treatment: . Most stock recover when taken off the weed. . Be aware of potential stock problems. ...
PDF - CLIMBERS - University of Michigan
... Phylogenetic Information: Within the Ranunculales, the Menispermaceae is most closely related to the Berberidaceae and the Ranunculaceae, both of which have well-known members such as barberry, marsh marigold, columbine, and wolfsbane. The closest relative to this branch of the Ranunculales is the C ...
... Phylogenetic Information: Within the Ranunculales, the Menispermaceae is most closely related to the Berberidaceae and the Ranunculaceae, both of which have well-known members such as barberry, marsh marigold, columbine, and wolfsbane. The closest relative to this branch of the Ranunculales is the C ...
PLANTS PLANT BITS - Junta de Andalucía
... Pollination is the transfer of pollen from the stamens of one flower to the stigma of another flower. Animal pollination: some plants have very beautiful flowers with colorful ...
... Pollination is the transfer of pollen from the stamens of one flower to the stigma of another flower. Animal pollination: some plants have very beautiful flowers with colorful ...
Note that fungi are more closely related to animals than to plants.
... • A seed is basically an embryo (young sporophyte) packaged in a protective coat with a supply of nutrients. Seeds are much less vulnerable to unfavorable environmental conditions, and they can remain dormant for extended periods of time without germinating. • In seed plants, the gametophyte has bec ...
... • A seed is basically an embryo (young sporophyte) packaged in a protective coat with a supply of nutrients. Seeds are much less vulnerable to unfavorable environmental conditions, and they can remain dormant for extended periods of time without germinating. • In seed plants, the gametophyte has bec ...
Chapter 7 Notes
... IV. Variations in Photosynthesis A. C4 plants 1. have extra metabolic steps preceding the C3 pathway 2. have very high rates of photosynthesis ...
... IV. Variations in Photosynthesis A. C4 plants 1. have extra metabolic steps preceding the C3 pathway 2. have very high rates of photosynthesis ...
English - Afghan Ag
... class, will repeat key information aloud in order to help them remember it. Tell the class that when you ask, “what are the main parts of a plant”, they will respond: root, stem, leaves (in that order). “Class, what are the main parts of a plant?” (students respond). You may have to repeat this a c ...
... class, will repeat key information aloud in order to help them remember it. Tell the class that when you ask, “what are the main parts of a plant”, they will respond: root, stem, leaves (in that order). “Class, what are the main parts of a plant?” (students respond). You may have to repeat this a c ...
Olga Mezitt Rhododendron*
... Olga Mezitt Rhododendron will grow to be about 6 feet tall at maturity, with a spread of 5 feet. It tends to be a little leggy, with a typical clearance of 1 feet from the ground, and is suitable for planting under power lines. It grows at a slow rate, and under ideal conditions can be expected to l ...
... Olga Mezitt Rhododendron will grow to be about 6 feet tall at maturity, with a spread of 5 feet. It tends to be a little leggy, with a typical clearance of 1 feet from the ground, and is suitable for planting under power lines. It grows at a slow rate, and under ideal conditions can be expected to l ...
Slide 1
... transport of materials within the plant: Vascular Plants (All but Moss which stay short and wet) have: • Xylem tubes to carry water and nutrients up • Phloem tubes to carry sugar down ...
... transport of materials within the plant: Vascular Plants (All but Moss which stay short and wet) have: • Xylem tubes to carry water and nutrients up • Phloem tubes to carry sugar down ...
Interior Plant Slides Part 2
... Tree-like to climbing evergreens Long, stiff, armed leaves, Pineapple-like fruit and inconspicuous flowers Most have prop-roots or stilt-roots ...
... Tree-like to climbing evergreens Long, stiff, armed leaves, Pineapple-like fruit and inconspicuous flowers Most have prop-roots or stilt-roots ...
SSEiB August
... will survive the colder winter as they will benefit from the heat that will radiate from the wall overnight creating a microclimate that benefits those less hardy plants. Whatever the reason, our climate is changing, so experimenting with plant hardiness can be exciting. The need for drought toleran ...
... will survive the colder winter as they will benefit from the heat that will radiate from the wall overnight creating a microclimate that benefits those less hardy plants. Whatever the reason, our climate is changing, so experimenting with plant hardiness can be exciting. The need for drought toleran ...
Growing Haskap / Blue honeysuckle in Canada
... extremely important to tree establishment. Irrigation is less critical for established trees. The established orchard at the U of Saskatchewan is seldom irrigated but we have heavy clay soil that holds moisture. If we were on sand, we would probably be irrigating much more. Farmers often water once ...
... extremely important to tree establishment. Irrigation is less critical for established trees. The established orchard at the U of Saskatchewan is seldom irrigated but we have heavy clay soil that holds moisture. If we were on sand, we would probably be irrigating much more. Farmers often water once ...
2016-Jun - LBS Centre for Science
... Analyze the following data related with Gymnosperms and choose the correct statements from the following 1. Heterosporous - microspores and megaspores, are typically produced in male ones or ovulate cones, respectively. 2. Cycads and Ginkgo have motile sperm that swim directly to the egg inside the ...
... Analyze the following data related with Gymnosperms and choose the correct statements from the following 1. Heterosporous - microspores and megaspores, are typically produced in male ones or ovulate cones, respectively. 2. Cycads and Ginkgo have motile sperm that swim directly to the egg inside the ...
Absorption and Assimilation of Nitrogen by Rice Plants
... prefer ammonium, but the absorption rate of ammonium is decreased by the coexsistence of nitrate compared with single absorption. There is an evidence that the rice plant can absorb amino acids under aseptic conditions before the decomposition to ammonia, 141 and paddy soils contain amino acids. How ...
... prefer ammonium, but the absorption rate of ammonium is decreased by the coexsistence of nitrate compared with single absorption. There is an evidence that the rice plant can absorb amino acids under aseptic conditions before the decomposition to ammonia, 141 and paddy soils contain amino acids. How ...
propagation techniques and planting techniques
... A method of propagation where the scion of one plant and the rootstock of another are artificially united. ...
... A method of propagation where the scion of one plant and the rootstock of another are artificially united. ...
OPERCULINA TURPETHUM(L.) SILVA MANSO. Research Article
... gained its attention in the treatment of common cold to dreadful diseases viz., AIDS, Cancer, etc, such plants are called as medicinal plants which have curative properties due to the presence of various complex chemical substances of different composition, viz., grouped as alkaloids, glycosides, co ...
... gained its attention in the treatment of common cold to dreadful diseases viz., AIDS, Cancer, etc, such plants are called as medicinal plants which have curative properties due to the presence of various complex chemical substances of different composition, viz., grouped as alkaloids, glycosides, co ...
Plant nutrition
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Plant nutrition is the study of the chemical elements and compounds that are necessary for plant growth, and also of their external supply and internal metabolism. In 1972, E. Epstein defined two criteria for an element to be essential for plant growth: in its absence the plant is unable to complete a normal life cycle; or that the element is part of some essential plant constituent or metabolite.This is in accordance with Liebig's law of the minimum. There are 14 essential plant nutrients. Carbon and oxygen are absorbed from the air, while other nutrients including water are typically obtained from the soil (exceptions include some parasitic or carnivorous plants).Plants must obtain the following mineral nutrients from the growing media: the primary macronutrients: nitrogen (N), phosphorus (P), potassium (K) the three secondary macronutrients: calcium (Ca), sulfur (S), magnesium (Mg) the micronutrients/trace minerals: boron (B), chlorine (Cl), manganese (Mn), iron (Fe), zinc (Zn), copper (Cu), molybdenum (Mo), nickel (Ni)The macronutrients are consumed in larger quantities and are present in plant tissue in quantities from 0.2% to 4.0% (on a dry matter weight basis). Micro nutrients are present in plant tissue in quantities measured in parts per million, ranging from 5 to 200 ppm, or less than 0.02% dry weight.Most soil conditions across the world can provide plants with adequate nutrition and do not require fertilizer for a complete life cycle. However, humans can artificially modify soil through the addition of fertilizer to promote vigorous growth and increase yield. The plants are able to obtain their required nutrients from the fertilizer added to the soil. A colloidal carbonaceous residue, known as humus, can serve as a nutrient reservoir. Even with adequate water and sunshine, nutrient deficiency can limit growth.Nutrient uptake from the soil is achieved by cation exchange, where root hairs pump hydrogen ions (H+) into the soil through proton pumps. These hydrogen ions displace cations attached to negatively charged soil particles so that the cations are available for uptake by the root.Plant nutrition is a difficult subject to understand completely, partly because of the variation between different plants and even between different species or individuals of a given clone. An element present at a low level may cause deficiency symptoms, while the same element at a higher level may cause toxicity. Further, deficiency of one element may present as symptoms of toxicity from another element. An abundance of one nutrient may cause a deficiency of another nutrient. For example, lower availability of a given nutrient such as SO42− can affect the uptake of another nutrient, such as NO3−. As another example, K+ uptake can be influenced by the amount of NH4+ available.The root, especially the root hair, is the most essential organ for the uptake of nutrients. The structure and architecture of the root can alter the rate of nutrient uptake. Nutrient ions are transported to the center of the root, the stele in order for the nutrients to reach the conducting tissues, xylem and phloem. The Casparian strip, a cell wall outside the stele but within the root, prevents passive flow of water and nutrients, helping to regulate the uptake of nutrients and water. Xylem moves water and inorganic molecules within the plant and phloem accounts for organic molecule transportation. Water potential plays a key role in a plants nutrient uptake. If the water potential is more negative within the plant than the surrounding soils, the nutrients will move from the region of higher solute concentration—in the soil—to the area of lower solute concentration: in the plant.There are three fundamental ways plants uptake nutrients through the root: simple diffusion, occurs when a nonpolar molecule, such as O2, CO2, and NH3 follows a concentration gradient, moving passively through the cell lipid bilayer membrane without the use of transport proteins. facilitated diffusion, is the rapid movement of solutes or ions following a concentration gradient, facilitated by transport proteins. Active transport, is the uptake by cells of ions or molecules against a concentration gradient; this requires an energy source, usually ATP, to power molecular pumps that move the ions or molecules through the membrane. Nutrients are moved inside a plant to where they are most needed. For example, a plant will try to supply more nutrients to its younger leaves than to its older ones. When nutrients are mobile, symptoms of any deficiency become apparent first on the older leaves. However, not all nutrients are equally mobile. Nitrogen, phosphorus, and potassium are mobile nutrients, while the others have varying degrees of mobility. When a less mobile nutrient is deficient, the younger leaves suffer because the nutrient does not move up to them but stays in the older leaves. This phenomenon is helpful in determining which nutrients a plant may be lacking.Many plants engage in symbiosis with microorganisms. Two important types of these relationship are with bacteria such as rhizobia, that carry out biological nitrogen fixation, in which atmospheric nitrogen (N2) is converted into ammonium (NH4); and with mycorrhizal fungi, which through their association with the plant roots help to create a larger effective root surface area. Both of these mutualistic relationships enhance nutrient uptake. Though nitrogen is plentiful in the Earth's atmosphere, relatively few plants harbor nitrogen fixing bacteria, so most plants rely on nitrogen compounds present in the soil to support their growth. These can be supplied by mineralization of soil organic matter or added plant residues, nitrogen fixing bacteria, animal waste, or through the application of fertilizers.Hydroponics, is a method for growing plants in a water-nutrient solution without the use of nutrient-rich soil. It allows researchers and home gardeners to grow their plants in a controlled environment. The most common solution, is the Hoagland solution, developed by D. R. Hoagland in 1933, the solution consists of all the essential nutrients in the correct proportions necessary for most plant growth. An aerator is used to prevent an anoxic event or hypoxia. Hypoxia can affect nutrient uptake of a plant because without oxygen present, respiration becomes inhibited within the root cells. The Nutrient film technique is a variation of hydroponic technique. The roots are not fully submerged, which allows for adequate aeration of the roots, while a ""film"" thin layer of nutrient rich water is pumped through the system to provide nutrients and water to the plant.