Plant Botany
 
Category: Plant Botany
The concept of elements is very old, dating back to ancient Greece. According to the Greek philosophers, matter was made up of four elements: earth, water, fire and air.
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For the purpose of these rules, the quality and general characteristics of spices (whole and powder) shall be as given against each grade designation in columns
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Edward Lewis Sturtevant, farmer, botanist, physician and author, was one of the giants of his time in the science of agriculture. Through natural endowment, industry and rare mental attainments, he accomplished more than most men in scientific research by his own efforts
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All the living organisms are basically composed of carbon, hydrogen, oxygen, nitrogen and many other forms of chemical elements. These elements contribute to finally organize various biomolecules present in a cell.
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Enzymes are protein specialized to catalyse biological reactions
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The water content in the soil, plants and atmosphere is usually described as water potentia This is based on the relation between the water content in the part of a system and pure water at the same temperature and atmospheric pressure, measured in pressure units
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Photoautotrophs create sugars using energy, photosynthesis
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These are major land ecosystems. They are described by their types of vegetation e.g. forest, grasslands, or deserts.
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A biological community is an assemblage of populations of various species living close enough for potential interaction
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The generalized life cycle of plants has been modified (below) to illustrate plants which have separate male and female gametophytes
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It's a sporangium that produces spores which give rise to male gametophytes.
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Systematic biology is at the heart of our understanding of the natural world.
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Mating is of profound evolutionary significance because it directly influences the amount and organization of genetic variation in populations and their responses to natural selection.
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Simple leaves are whole, undivided leaves growing from a bud on the stem. The node is the part of the stem where leaves are attached.
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All modern terrestrial plants are the descendants of algae that adapted to a terrestrial habitat roughly 500 million years ago. Compared to water, land is an erratic habitat where temperature and moisture availability may change abruptly and dramatically.
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Alteration in the leaf anatomy of red cabbage plant due to B deficiency was similar with that observed in turnip. However, the number of vascular bundles rather decreased because of joining dorsal and lateral vascular bundles.
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the branch of biology that deals with classification and nomenclature; taxonomy.
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We saw last time using the data from Zoarces viviparus that we can describe empirically and algebraically how genotype frequencies in one generation are related to genotype frequencies in the next. Let's explore that a bit further.
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Relate Griffith’s conclusions to the observations he made during the transformation experiments.
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Epiphytic, epilithic (on rock), or terrestrial in habit. Rhizomes suberect, with spreading, orange-brown to pale brown linear scales, these with hairlike tips; wiry, straw colored, scaly stolons usually present in great numbers, often producing small, scaly underground tubers.
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The Kingdom Plantae includes plants which are multicellular, eukaryotic, photosynthetic and producers. The cell walls possess mainly cellulose. The plant body may be thalloid or differentiated into root, stem and leaves.
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The size, shape and arrangement of bacteria, and other microbes, is the result of their genes and thus is a defining characteristic called morphology. Bacteria come in a bewildering and exciting variety of size and shapes.
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Mitosis is the division of one cell into two new cells. The evolutionary significance of mitosis is to maintain the chromosome number. In asexually reproducing organisms, mitosis is used to reproduce. It is like binary fission but is more complex.
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By breaking down dead organic material, fungi continue the cycle of nutrients through ecosystems. In addition, most vascular plants could not grow without the symbiotic fungi, or mycorrhizae, that inhabit their roots and supply essential nutrients.
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The simplest of organisms, bacteria are thought to be the most ancient. They are the most abundant living organisms. Bacteria lack the high degree of internal compartmentalization characteristic of eukaryotes
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