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Ca2+ channels are only in the membrane of the presynaptic neuron. ACh-containing vesicles are only within the presynaptic neuron. (ACh only produced within the presynaptic neuron, has choline and acetyl)A...

Point mutations can affect a protein in various ways, depending on the type of point mutation that has occurred. Substitution mutations can be silent, causing no change in...

DifferencesProkaryotes are much smaller than eukaryotic cells. Prokaryotic cells are 0.5-5 microns in diameter compared to eukaryotic cells which are approx 50-100 microns. Another differ...

Oxygen diffuses from the air where it is present at a higher concentration and pressure, to the lungs where it is at a lower concentration and pressure - we say it moves 'down' these gradients; high to lo...

This can be done via the iodine test- you would use an iodine solution and pipette this unto the plant cutting. For a positive test, the specimen would turn into a blue/ black colour in the presence of io...