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Osmosis can be defined as "the movement of water from an area of high water concentration to an area of low water concentration across a selectively permeable membrane". What this means, is that...

During exercise, blood glucose concentration falls due to the increased energy demand and glucose uptake of skeletal muscles. This fall in glucose concentration is detected by the alpha and beta cells in ...

Deoxyribonucleic acid (DNA) is the hereditary material in almost all organisms and is responsible for carrying out genetic instructions in the cell. DNA is a polymer of nucleotides and each nucleotide has...

Synapses are really important in the transmission of information signals through the nervous system. They connect two (or more) neurons, aiding the passage of information through the system. This passage ...

A balanced diet is one that contains the correct balance of different food groups to avoid malnourishment. Carbohydrates are required for energy release to the body, proteins are used in the body for grow...