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Using pythagoras’ theorem:a^2 + b^2 = c^2
hypotenuse = sqrt(5^2 + 7^2) = sqrt(25+49) = sqrt(74)

The light-dependent reaction is the first stage of photosynthesis (the second stage is the light-independent reaction), and it takes place within the thylakoid membrane of the chloroplasts. Firstly, light...

Action potential arrives down the first neurone. The action potential is a changing potential as a result of ion channels opening along the walls of the neurone, with Na+ moving in down the electrochemica...

So, we are dealing here with a quadratic equation as it is written in the form ax^2 + bx +c = 0 To tackle this we will firstly need to factorise the equation, we need to find two numbers that will multipl...

In the blood, the enzyme carbonic anhydrase allows water and CO2 to combine to form hydrogen carbonate ions and hydrogen ions. In the presence of many hydrogen ions, oxygen has a weaker affinity for haemo...