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Define the process of osmosis and diffusion

osmosis is the unprompted movement of water from a high concentration to a low concentration through a semi-permeable membrane diffusion is the movement of particles from an area of high concentration to an ...
Answered by • Biology tutor
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How do you structure and analyse in a commentary ?

Structure There are multiple approaches you can take to structuring your essay overall. This can be dividing your paragraphs into themes, techniques, chronologicallyHowever, to show an examiner that you unde...
Answered by • English tutor
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A curve is defined by parametric equations: x = t^(2) + 2, and y = t(4-t^(2)). Find dy/dx in terms of t, hence, define the gradient of the curve at the point where t = 2.

dy/dx = (dy/dt)/(dx/dt) y = t(4-t 2 ), then using differentiation of y with respect to t, dy/dt = 4 - 3t 2 x = t 2 + 2, then using differentiation of x with respect to t, dx/dt = 2t Find dy/dx by dividing dy...
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Answered by Micah W. • Maths tutor
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What is the process of mitosis?

A useful mnemonic to remember the stages of mitosis is PMAT. Don’t forget that the cell spends most of its time in interphase, the phase where the DNA is replicated, before moving to mitosis.Prophase- chromo...
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Answered by Caroline H. • Biology tutor
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Solve x^2 - 6x + 8 < 0

To see the answer more clearly, we can sketch the function. First, we start by sketching the parabola (curve). If we have a positive x^2 term then we have a U shaped parabola and if it is negative, i.e. -x^2...
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Answered by Rachel W. • Maths tutor
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