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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...

Nucleus - This is the largest organelle within the cell and contains all the cell's genetic information (with the exception of the mitochondrial genome). Structurally, it has a double membrane, known as t...

Inspiration: The first stage of inspiration is contraction of the diaphragm, which causes it to move downwards, and contraction of the external intercostal muslces (the muscles between the ribs), w...

Ribosomes, which are made up of rRNA, are instrumental in the translation of mRNA into proteins. The ribosome has a large and a small subunit, which sandwich around a strand of mRNA. This mRNA attaches to...