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What is osmosis and how does it differ from what I learned at GCSE about diffusion

At GCSE osmosis was simplified to just diffusion of water so it is the spreading out of water molecules from where there is a high concentration to a low concentration- but in fact osmosis depends both on...

Answered by Katie G. • Biology tutor

6736 Views

What are the 5 stages of the Medical school Application?

Volunteering
Work experience
UKCAT/BMAT
Personal Statement (UCAS)
Interview Preparation

(each is an ext...

Answered by Oscar W. • Medical School Preparation tutor

1423 Views

Explain how the DNA of a Eukaryote is replicated

To replicate the DNA of a eukaryotic cell, the double helix structure must first be unwound to present the base pair sequence. This is done using DNA helicase (this enzyme breaks the hydrogen bonds connec...

Answered by Oscar W. • Biology tutor

2976 Views

What is ionic bonding? Give an example

A bond formed between a metal atom and a non-metal atom in which electrons are transferred from the metal atom to the non-metal atom, forming ions. If an atom loses an electron, it becomes positively char...

Answered by Safia A. • Chemistry tutor

2915 Views

What is the overall charge of the nucleus of an atom, and why?

Positive. The neutrons found in the nucleus have a neutral charge, however the protons are positively charged. Therefore the overall charge is positive.

Answered by Safia A. • Chemistry tutor

56997 Views