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DNA helicase unwinds DNA by breaking H bonds between DNA strands. DNA polymerase joins adjacent nucleotides by forming phosphodiester bonds between them.
There are four stages of aerobic respiration- glycolysis, which takes place in the cell cytoplasm and the link reaction, Krebs cycle, and oxidative phosphorylation, which all occur in the mitochondria.Gly...
This can best be described as the second messenger model. Adrenaline is a hydrophillic hormone so it only acts on receptors on the cell surface membranes. The hormone fuses to the receptor site which then...
A nerve cell when at rest is negatively charged, this means that on the inside it is more negative than on the outside. The potential difference is around -70mV. The mechanism that helps to achieve that p...
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