Inhalation is the process of taking in air containing oxygen, while exhalation is the process of giving out rich containing carbon dioxide. This is the basic process of breathing. Here one breath involves the one complete inhalation and exhalation. So breathing rate varies from person to person and different kind of activity they perform in a day. Though on an average, the breathing rate of an adult is 15-18 times a minute, however, it may increase up to 25 times per minute in case of heavy … [Read more...]

The main difference between glycolysis and Krebs cycle is: Glycolysis is the first step involved in the process of respiration and occurs in the cytoplasm of the cell. While Krebs Cycle is the second process of respiration which occurs in the mitochondria of the cell. Both are the process involved in respiration with the aim of fulfilling the energy requirement of the body. So Glycolysis is defined as the chain of the reactions, for the conversion of glucose (or glycogen) into pyruvate … [Read more...]

A monosaccharide is the simplest form of sugars, containing single polyhydroxy aldehyde or ketone unit. Oligosaccharide consists of two or more units of monosaccharides, joined by glycosidic bonds.While the Polysaccharide consists of more than 20 or more units of monosaccharides, some may have hundreds or thousands of units. Monosaccharides, Oligosaccharides, and Polysaccharides are the main division of carbohydrates. The most basic part of one's diet is carbohydrates, as it is considered as … [Read more...]

The capability of the binding oxygen molecule, with the heme proteins, is what makes a difference in both the molecules. Haemoglobin is called as tetrameric hemoprotein, while myoglobin is called monomeric protein. Haemoglobin is found systematically all over the body, while myoglobin is found in muscles tissues only. Haemoglobin is made of protein and prosthetic group and is well known for carrying oxygen pigment. It is the most vital part to sustain life as it works in transporting oxygen … [Read more...]

Deoxyribonucleic acid or DNA  is the material that contains hereditary information in all the living beings, these are regarded as a set of genetic instructions used for further developing the organisms and other functions. At the same time, RNA or Ribonucleic acid play the role in protein synthesis and also in the transmission of genetic information. DNA is double helical structure while RNA is single stranded. As the name suggests DNA contains deoxyribose and lacks one oxygen atoms; RNA … [Read more...]

Carbohydrates are soluble in water and are the most abundant dietary source of energy for all living organisms, whereas fats are insoluble in water but soluble in alcohol, ether, etc. Fats are also considered as a chief store of energy. Our body needs ample amount of energy to do 'work', which we get through macromolecules like carbohydrate and fats. Both of them provide energy to the body and are macronutrients which mean carbohydrates and fats are among top three sources of energy for a … [Read more...]