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How are phospholipids arranged in the cell membrane?

Phosopholipids have a hyrdophilic head which is orientated towards the cytoplasm or the interstice, and hydrophobic tales which are orientated towards the inside of the membrane, hydrophobic interactions hol...
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Answered by Henry K. • Biology tutor
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An Enzyme has lost is function, it has become denatured. What can be the cause of denaturation? Why does the enzyme no longer function?

High temperature can cause the denaturation of proteins (enzymes), this is due to bonds in the proteins breaking. The shape of the active site no longer works, the lock and key mechanism is no longer achieve...
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Answered by Henry K. • Biology tutor
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Solve: 5x - 2 > 3x + 11

5x - 2 > 3x + 11 5x - 3x > 11 + 2 2x > 13 x > 13/2 x > 6.5
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Answered by Henry K. • Maths tutor
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A compound is found to contain 30.7% Sulfur, 23,3% Magnesium and 46% Oxygen. What is the empirical formula of the compound?

Change % of elements in to moles: 30.7 mol of S, 23.3 mol of Mg and 46 mol of O 2 . Find the mass of each of the elements: 30.7 mol / 32.06 g/mol = 0.96 g of S; 23.3 mol / 24.31 g/mol = 0.96 g of Mg; 46 mol ...
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Answered by Henry K. • Chemistry tutor
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Complete the equation: Zn(s) + H2SO4 (aq) –> ...... + ......

Zn(s) + H 2 SO 4 (aq) –> ZnSO 4 (aq) + H 2 (g) Zinc reacts with sulfuric acid to form zinc sulphate and hydrogen gas
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Answered by Henry K. • Chemistry tutor
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