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Define osmosis

Osmosis is the movement of water across a semi-permeable membrane
CI
3391 Views

What sort of questions do they ask in Oxbridge interviews?

Beyond the 'typical medical school interview questions' that are still fair game, oxbridge interviews are infamous for employing an array of unconventional questions that can be intimidating for the unprepar...
MG
2025 Views

What is the electron transport chain and what is its function?

The electron transport chain is a series of four protein complexes , along with accessory electron carriers, e mbedded in the inner mitochondrial membrane of mitochondria . The enzyme ATP synthase is closely...
JJ
Answered by Joshua J. • Biology tutor
11142 Views

Example Oxbridge interview question: Discuss why you think certain medications (e.g Statins) are given at specific times during the day.

Whilst it is unlikely that an A-level student would be able to give the 'expected' answer to this question, as this would require knowledge of the biological phenomena of circadian rhythms, this question wou...
MG
1944 Views

Five point charges, each of positive charge q, are arranged to form the corners of a uniform pentagon. A point charge Q is placed at the pentagon's centre. One of the corner charges is removed. What force does the centre charge experience?

There are four keys to answering this problem - when taken together, they turn a seemingly difficult calculation into a trivial one-line answer. The first is knowing Coulomb's inverse square law for the forc...
TA
Answered by Theo A. • PAT tutor
2854 Views