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Phagocytes are part of the innate immune system. They are primarily responsible for clearing extracellular infections e.g. bacteria or fungus, by recognising and ingesting the pathogen. Typically, pathoge...
The action potential arrives at the synaptic knob of the presynaptic neurone. The action potential stimulates the opening of voltage-gated calcium ion channels in the presynaptic neurone, allowing calcium...
Contains enzymes to digest egg cell wallFull of mitochondria to supply energy for movementtail for swimming Sperm contains generic material to transfer to the egg
If the temperature decreases:The blood vessels supplying the skin constrict (vasoconstriction) resulting in less blood flow to the skin surface and...
The nucleus contains the gene that codes for the enzyme and is where transcription happens to produce mRNA . The mRNA leaves the nucleus and attaches to a ribosome on the rough endoplasmic reticulum. The ...
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