The term short day plants describes plants that begin flowering when the days are shorter than their critical day length. For a short-day plant to bloom there must be less than 12 hours of daylight. Common Examples of short day plants include: Chrysanthemums, Poinsettias, Christmas cactus, Rice, Green Gram, Soybean, Marijuana, Jowar and Cotton among … Read more
Covalent Bonding A covalent bond, also referred to as molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is what is referred to as covalent bonding. There is a covalent bond … Read more
What Is A Colloid? A colloid is a homogenous non-crystalline substance consisting of large molecules or ultramicroscopic particles of one substance dispersed through a second substance. A common method of classifying colloids is based on the phase of the dispersed substance and what phase it is dispersed in. Colloids include: gels, sols, aerosols and emulsions. … Read more
While both belong to the Enterobacteriaceae family, Salmonella and Shigella harbor distinctive characteristics that set them apart in terms of transmission, symptoms, and epidemiology. Characteristics of Salmonella Salmonella species are predominantly motile enterobacteria found in the digestive tracts of humans and animals especially reptiles. Food and water can also be contaminated with the bacteria if … Read more
Plant movements do exist. Plant use movements as an adaptation to escape or minimize injury from harmful external factors or move towards scarce resource or otherwise secure food. For example, the primary root moves downward where it can obtain water and mineral nutrients from deep down while the shoot moves upward to be exposed to … Read more
Sols can be defined as colloidal systems with solid as dispersed phase and liquid as dispersion medium. Lyophobic sol and Lyophilic sol are the only types of sols. Lyophilic sols commonly described as liquid loving sols have a greater affinity for solvent. These sols are prepared easily by shaking or warming the dispersion phase in … Read more
A Proportionate counter is an instrument for detecting and measuring the intensity of ionizing radiation. It is similar to a Greiger Mueller counter but operates at a lower potential difference such that the magnitude of the discharge is directly proportional to the number of gas molecules ionized by the detected particle. This may permit the … Read more
Gas solid chromatography and Gas liquid chromatography are both the main types of Gas chromatography. In both methods, either liquid or solid is used as a stationary phase whereas gas is used a mobile phase. Gas solid chromatography entails passage of a mixture of volatile compounds with differential migration through a column containing solid stationary … Read more
A covalent bond also referred to as a molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms. These electrons are pairs are referred to as shared pairs or bonding pairs and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent … Read more
Pi Bond & Sigma Bond A Pi bond is a covalent bond which is formed by the side-to-side overlap of two atomic orbitals. Each of these atomic orbitals has zero electron density at a shared nodal plane, passing through the two bonded nuclei. The same plane is also a nodal plane for the molecular orbital … Read more