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The haemoglobin in red blood cells carries oxygen. - Red Blood cells are flattened biconcave disc shapes which means they have a large surface area to carry oxygen. - They are small cells so can fit into ...

Mutations are a random change in the nucleotide sequence in a genome. Genes code for proteins, such as enzymes, and are found in the genome. When a change in the nucleotide sequence within a gene happens,...

Receptor triggers a sensory neuron to fire an electrical impulse. Synapses with relay neuron which fires an electrical impulse. Synapses with motor neuron which fires an electrical impulse. The motor neur...

A prokaryote is a much smaller and simpler cell than a eukaryote, whereas as prokaryote is usually 0.2 to 2.0um eukaryotes are 10-100um. Due to the small size, prokaryotes don't have a nucleus, which also...

Antibiotics target a variety of sites on bacteria (disruption DNA or cell wall or protein synthesis). These are not found in viruses - viruses lack cell walls, ribosomes or cell membranes.Antibiotics woul...