(d) Explain the effect of the different SA:Vol ratios on the rate of osmosis into the potato.
Best way to explain would be to draw a cell with both a big and a large SA:Vol ratio. Visually get to see the effect, to understand why the rate of osmosis changes.
note: SA = surface area and Vol = volume
essentially means how large the SA is in comparison to the volume
Osmosis = diffusion of a liquid from a high to low concentration gradient.
The larger the SA:Vol ratio, the greater the rate of osmosis into the potato.
EI
Related Biology GCSE answers
All answers ▸Describe the process by which lipids are 'broken down' by the digestive system, and how bile facilitates this process.
Describe the process of Mitosis?
There is an increasing worry about the rise of antibiotic-resistant bacteria, such as MRSA. How can doctors ensure that this threat is minimised? (2 marks)
What is an enzyme? and why are they so important for reactions to take place?