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The LIR is made up of three stages, known as the Calvin cycle. The first stage is carbon fixation. To start, the enzyme RuBISCO (Ribulose Bisphosphate Carboxylase Oxygenase) catalyses the reaction between...
A wave of depolarisation is sent toward the neuromuscular junction, this causes voltage gates Ca2+ channels in the presynaptic membrane to open allowing the Ca2+ ions to enter following their concentratio...
There are 4 different structural forms of proteins; Primary, Secondary, Tertiary and Quaternary. The primary structure is a chain of amino acids joined by peptide bonds. The secondary structure is a chain...
One feature is its compact shape. Starch molecules consists of two components: Amylose and Amylopectin. Amylose is the straight chained part and amylopectin is the branch chained part. Both these st...
The respiration surface in humans is the alveoli. It is adapted to its function as a gas exchange surface because it has a high surface area to volume ratio, this allows maximum surface area for gas excha...
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