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Mitochondria are organelles which are present in all cells. They are the sites for cellular respiration which provides an organism with energy.

preceded by interphase - DNA is being replicated and the two identical copies remain joined at centromere.-prophase - visible chromosomes and centrioles move to opposite poles spindle fibres develop, nucl...

During inspiration the diaphragm contracts and flattens and the external intercostal muscles contract. This moves the rib cage up and out and increases the volume of the thorax. This reduces the pressure ...

Once the mRNA is in the cytoplasm the smaller ribosomal subunit will connect to it. It will then slide in the 5' to 3' until it reaches the initialization codon ( AUG), once this happens the TRNA that ca...

Binding of the first molecule of oxygen changes the tertiary/quarternary structure of Haemoglobin - this can be referred to as a conformational shift. This change in structure then exposes another binding...