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Nutrition is a biological study of food and various modes of nutrition of living organisms. It is one of the ways the living organisms obtain energy required for all the vital processes of the body. On the basis of nutrition, all the organisms are divided into two main groups- autotrophs and heterotrophs. Their corresponding modes … Read more
Cilia and Flagella are small hair like cytoplasmic processes arising from the free margins of the cell. These structures have the same internal length; however they differ in size, length, number and chemical composition. Cilia and flagella are made up of microtubules and are covered by an extension of the plasma membrane. They also motile … Read more
Cilia and microvili are two types of projections in the plasma membrane. Microvilli are microscopic cellular membrane protrusions that increase the surface area for absorption. Cilia on the other hand, are narrow and long hair like protuberances from the apical surface of some epithelial cells. Both microvilli and cilia consist of protein fibers that extend … Read more
Flagellum is a long, whip-like structure that helps some single-celled organisms move. It is composed of microtubules. Flagella help propel cells and organisms in a whip-like motion. They are found in all three domains of the living world, that is, archaea, bacteria and eukaryote. Flagella not only provide movement for bacteria but also provide a … Read more
Primary and secondary successions are the two types of Ecological succession. An ecological succession is the process of change in the species structure of an ecological community over time. Ecological succession in an ecosystem is caused by disturbances that create new environmental conditions. A disturbance is an ecosystem allows for sunlight, nutrients and habitat to … Read more
P-type and n–type semiconductor are both classification of extrinsic semiconductors. The major factor that generates a difference between p-type and n-type semiconductor is the material used in doping the intrinsic semiconductor (pure conductor). The n-type semiconductor material is formed by addition of group V elements (pentavalent impurity) to a pure conductor intrinsic semiconductor). Examples penta-valent … Read more
Wave motion transfers energy from one point to another without permanent displacement of the particles of the medium. A wave can be transverse or longitudinal depending on the direction of its oscillation. Below is a detailed explanation of differences between longitudinal and transverse waves in the context of their characteristics, behaviors, and real-world implications. Longitudinal … Read more
Velocity is defined as the speed of a moving object in a particular direction. Velocity of an object can also be described as the rate of change of its position with respect to speed and direction of motion (e.g 15 km/h to the south). Velocity is a physical vector quantity; both magnitude and direction are … Read more
What Is Distance? Distance is the total movement of an object without any regard to direction. We can also describe distance as to how much ground an object has covered despite its starting or ending point. What Is Displacement? Displacement can be described as the change in position of an object. It is a vector … Read more
Sometimes galvanic cells are just referred to as electrochemical cells while they are electrochemical cells; electrolytic cells are also electrochemical cells. Electrolytic and galvanic cells are however not the same. A galvanic cell is an electrochemical cell which converts chemical potential energy to electrical potential energy through a spontaneous chemical reaction. A galvanic cell has … Read more