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Biology
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Explain the process of muscle contraction

Nerve impulses travel along the muscle fibre membrane (sarcolemma). The impulse is carried down into the fibre through T-tubules. Impulses are spread along the sa...

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Answered by Akash K. Biology tutor
3079 Views

What is the difference between mitosis and meiosis?

Mitosis and meiosis are both types of cell division.Cells that divide by mitosis produce 2 identical daughter cells - these cells have the same number of chromosomes. These cells are important for growth ...

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Answered by Abbey B. Biology tutor
2296 Views

How are signals transmitted across a neuromuscular junction?

Calcium ions enter the presynaptic terminal via voltage gated calcium channels, once the presynaptic terminal is depolarised by an action potential.Calcium ions stimulate vesicles to fuse with the presyna...

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Answered by Ishan J. Biology tutor
2173 Views

Briefly describe the stages of mitosis

Interphase: DNA in chromosomes replicates to have double copies of itself for mitosis. 1. Prophase: DNA in chromosomes condenses therefore becomes mo...

OA
2921 Views

Explain the process of synaptic transmission

An action potential reaches the presynaptic neurone. This causes calcium channels to open, leading to calcium ions entering the synaptic knob via facilitated diffusion. This causes synaptic vesicles conta...

TK
Answered by Thomas K. Biology tutor
2312 Views

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