Amwoga Khalwale

Urethra is the vessels responsible for transporting urine from the bladder to an external opening in the perineum. It is lined by stratified columnar epithelium which is protected from corrosive urine by mucus secreting glands. The male urethra is a narrow fibromuscular tube that conducts urine and semen from bladder and ejaculatory ducts respectively to … Read more

Micronutrients & Macronutrient  Micronutrients are plant nutrients which are required in small quantities and are mainly responsible for repairing damaged tissues and cells, prevention of infectious diseases by fighting against the disease-causing pathogens including bacteria virus and fungi. Examples of micronutrients include: iron, calcium, vitamins, minerals and vitamin C. Micronutrients are largely obtained from vegetables, … Read more

Photophosphorylation is the process of synthesizing energy-rich ATP molecules by transferring the phosphate group into ADP molecules in the presence of light. This process can either be a cyclic process or a noncyclic process. The Photophosphorylation process that results in movement of electrons in a cyclic manner for synthesizing of ATP molecules is referred to … Read more

ALOHA was developed in the 1970s by Norman Abramson at the University of Hawaii in i970 as a first demonstration of wireless networks. ALOHA is a system for coordinating and arbitrating access to a shared communication networks channel.  A shared communication system like ALOHA requires a method of handling collisions that occur when two or … Read more

Description An antibonding molecular orbital in chemical bonding theory, is a type of molecular orbital (MO) that weakens the chemical bond between two atoms and help to raise the energy of the molecule relative to separate atoms. Such an orbital has one or more nodes in the bonding region between the nuclei. The density of … Read more

Plants are typically made up of roots, stems and leaves. Plant tissues can be broadly categorized into dividing meristematic tissue or non-dividing permanent tissue. What Are Meristematic Tissues? Meristematic tissue or meristem are tissues that have ability to enlarge, stretch and differentiate into other types of cells as they mature. The cells of this tissue … Read more

What Is Respiration?  Respiration can also be referred to as Normal respiration or dark respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert biochemical energy from nutrients into adenosine triphosphate (ATP) and the release the metabolic waste products. The mitochondria found in the cell cytoplasm … Read more

What Is Phototropism? Phototropism is the growth of an organism in response to a light stimulus. Growth towards a light source is referred to as positive phototropism whereas growth away from the light source is referred to as negative phototropism. Positive phototropism is common among the shoots of higher plants while roots usually exhibit negative … Read more