Oxidation of Alkenes

Generally, alkenes are easily oxidized with a large number of oxidizing agents. In the presence of oxygen, alkenes are burnt with a bright flame and produce water and carbon dioxide. Epoxides are produced by the catalytic oxidation with the per-carboxylic acids. In the process of ozonolysis, the reaction of alkenes with the ozone causes the … Read more

Flower structure and reproduction system

  Flower structure: Flower is the reproductive responsible part of the plant. It consists of four concentric rings of structure. The first one is sepals which are green and they protect the flower before it opens. This outer part is called calyx. The second part is petals which exist inside the sepals and they are … Read more

Activation energy in chemical kinetics

Chemical Kinetics: Activation Energy Molecules are required to possess a minimum amount of energy to undergo a reaction. In order to form products, bonds must be broken in the reactants. Bond breakage requires energy. Molecules that move too slowly, with low kinetic energy, don’t react when they collide. Activation energy, Ea, is the minimum energy … Read more

Filariasis

  Filariasis is also called lymphatic filariasis, it is a parasitic disease that is caused by an infection of roundworms of the filariodea type. Lymphatic filariasis commonly known as elephantiasis impairs the lymphatic system causing pain, social stigma and severe disability as it can lead to abnormal enlargement of body parts. Filariasis also leads to … Read more

Fertilization

  1. Fertilization Fertilization is the union of the female gamete (egg) and the male gamete (spermatozoa). Whether it occurs naturally inside the female reproductive system or with the assistance of reproductive technologies outside of the human body, the product is a structure called a zygote. When a woman is ovulating she releases one egg … Read more

Collision theory of chemical kinetics

Chemical Kinetics: Concept of collision theory If molecules in a chemical reaction react at different rates there must be specific conditions that play a role in determining the rate.The rates of reaction are associated with the particles and their properties through a model called collision theory. Collision theory explains how changing reaction conditions control reaction … Read more

Extinction

  Extinction is the extermination of an entity or a group of entity usually a species. The extinction is usually inspected to be the death of the last sole of the species. More than 99 Mass Extinctions:Although the extinction is an existent feature on the earth, the fossil record discloses the five large extinctions each … Read more

Examples of pollination

  Introduction. Pollination is the transfer of pollen grains from a male part of a plant to a female part of a plant. This later enables fertilization of the plant and the production of seeds. The transfer is most often facilitated by an animal or by the wind, which is the pollinating agents. Examples of … Read more

Energy Flow

Introduction. Ecosystems maintain themselves from the flow of energy through different trophic levels in an ecosystem. The cycling energy and nutrients obtained from different external sources sustain the ecosystem. Energy flow is depicted by the use of food chains, food webs, and ecological pyramids Trophic level. In an ecosystem, there exist, several feeding groups, each … Read more

Endangered Organisms

  The species which are likely to become extinct shortly are categorized as the endangered species. These species are at the risk of extinction due to the loss of its critical habitat, or due to the sudden decrease in the number of individuals. Any species that was previously threatened with extinction can be regarded as … Read more