Amwoga Khalwale

Get to understand the clear distinction between polysaccharide, monosaccharide and disaccharide. The basis on distinction include: Description, Classification, solubility, Taste, chemical structure, molecular weight and Examples. Key Differences Description Polysaccharides are polymeric carbohydrate molecules composed of long chains of monosaccharide units bounded together by glycosidic bonds. A disaccharide also known as double sugar or bivose, … Read more

What is Xylem? Xylem vessels are hollow cells arranged end to end and joined by perforation plates to form continuous tubes. In these cells both nucleus and cytoplasm are absent. The end walls of these cells are often completely broken to form a long distance channel for transport of water.  The main function of xylem … Read more

Polymers are linearly chained large molecules composed of sequences of repeating monomer units connected by covalent bonds. Polymers can be classified as organic or inorganic polymers.  Polymer as a chemical compound has high molecular weight consisting of a number of structural units linked together by covalent bonds. (A structural unit is a group having two … Read more

A chemical compound is made up of two or more elements that are chemically bonded together. One of the ways to classify compounds is by identifying them as either organic or inorganic. The main difference that lies between these organic compounds and inorganic compounds is that organic compounds always have a carbon atom while most of the … Read more

Moyoglobin is an iron and oxygen-binding protein found in the muscle tissue of vertebrates in general and in almost all mammals.  Myoglobin has a very high affinity for oxygen and acts as an oxygen molecule. It only releases oxygen when the partial pressure of oxygen has fallen drastically. Hemoglobin on the other hand is the … Read more

Neurons are electrically excitable cells in the human bodies that communicate with other cells through specialized connection referred to as Synapses. Each neuron has a cell body with many minute branched short protoplasmic extensions referred to as dendrites and an elongated unbranched protoplasmic extension referred to as Axon. What Are Myelinated Nerve Fibers? Myelinated Nerve … Read more

Get to understand a clear distinction between myelinated and unmyelinated neurons. The basis of comparison include: Speed of transmission, description, node of ranvier, axon, diameter,  impulse conduction and location. BASIS OF COMPARISON MEDULLATED NERVE FIBRE Non-MEDULLATED Description Medullated nerve fibre is a nerve fibre with a medullary sheath. Non-medullated nerve fibre is a nerve fibre … Read more