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Describe the sodium-potassium ion pump on cell plasma membranes (2 marks)

These pumps use ATP / active transport to move 3 sodium ions (Na+) out of the cell for every two potassium ions (K+) that move in.1 mark - idea of active transport / use of ATP1 mark...

AA
Answered by Aarif A. Biology tutor
3262 Views

Solve the following simultaneous equations: 1) 2x + 7y = 12 2) 4x = 14 - 4y

  1. ×2 --> 4x + 14y = 241) - 2) --> 4x + 14y - 4x = 24 - 14 - (-4y) 14y = 10 + 4y10y = 10 --> y = 14x = 14 - 4 (1)x = 10/4 = 2.5x = 2.5 & y= 1
BS
Answered by Bernardo S. Maths tutor
3212 Views

How do I demonstrate my interest in my subject on my personal statement?

You demonstrate interest in the subject you're applying for by giving examples of ways in which you've pursued a deeper knowledge of your subject outside of your A-level curriculum. This could be through ...

EM
3809 Views

Explain the concept of price elasticity of demand

Price elasticity of demand is an economic concept that economists use to understand how demand is affected by changes in price. Formally, it explains the responsiveness to demand to a change in price. Whe...

HE
Answered by Hamza E. Economics tutor
2251 Views

Decrivez l’immigration en France apres avoir regardé le film ‘Que est- ce qu'on a fait au Bon Dieu?'

Depuis plusieurs années, le sujet d’Immigration en France est devenu très populaire parmi toutes les classes et races. Si autre fois les immigrés étaient majoritairement européens, ce n’est plus le cas au...

AK
Answered by Aleksandra K. French tutor
2128 Views

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