What is osmosis?

Osmosis is just the word used to describe the movement of water, always from a high concentration of water to a low concentration of water. The new area may have a low concentration of water because there are lots of other molecules there (e.g. glucose), so there are fewer water molecules.

The water always moves across a semi-permeable membrane, such as the cell membrane! Semi-permeable simply means that it has little holes in it for the water to get through.

Deanna C. GCSE Biology tutor, GCSE German tutor, A Level Biology tuto...

1 year ago

Answered by Deanna, a GCSE Biology tutor with MyTutor

Still stuck? Get one-to-one help from a personally interviewed subject specialist


£18 /hr

Halcyon H.

Degree: Veterinary Medicine (Bachelors) - Edinburgh University

Subjects offered: Biology, English+ 2 more

-Personal Statements-

“About Me: Hi, I'm studying Veterinary Medicine at Edinburgh University. I know how hard you have to work to gain success in exams and want to help others to reach their goals. I have experience of mentoring young people and peers thro...”

MyTutor guarantee

£22 /hr

Georgina M.

Degree: Environment and Development (Masters) - Leeds University

Subjects offered: Biology, -Personal Statements-

-Personal Statements-

“Friendly and knowledgeable Biology tutor who will create a safe space for students to learn how to ace their exams! Also here to help with personal statements.”

MyTutor guarantee

£18 /hr

Bethany F.

Degree: Pharmacy (Masters) - Bath University

Subjects offered: Biology


“Hi there! I'm Bethany and I'm a first year undergraduate student studying Pharmacy at the University of Bath. I have a great passion for biology, which through tutoring, coincides brilliantly with my love of helping others. I am very ...”

MyTutor guarantee

About the author

Deanna C.

Currently unavailable: for regular students

Degree: Biomedical Sciences (Bachelors) - York University

Subjects offered: Biology, German


“Hi, I'm Deanna and I'm a Biomedical Sciences student at the University of York. Biology and German were always my favourite subjects at school (which is why I'm spending a year of my degree in Germany!), and I hope that by the end of ...”

MyTutor guarantee

You may also like...

Posts by Deanna

What is a subordinating conjuction?

What is osmosis?

Other GCSE Biology questions

How could species have evolved from an ancestor such as Archaeopteryx?

What is Evolution?

Explain the process of allopatric speciation

What is an oxygen debt?

View GCSE Biology tutors


We use cookies to improve our service. By continuing to use this website, we'll assume that you're OK with this. Dismiss