Cell Size and Shape

Question 1

what are the benefits of small cells?

Answer 1

• exchange of materials with the extracellular environment
• distances to travel within the cell are smaller, making transport of molecules faster.

Question 2

what is volume?

Answer 2

the amount of space inside an object

Question 3

what is the formula for volume?

Answer 3

V= length x width x height

Question 4

what is surface area?

Answer 4

the sum of the area of all exposed sides of a 3-dimensional shape

Question 5

what is surface area: volume ratio?

Answer 5

A ratio is a mathematical representation showing relative proportions of two things

Question 6

4 steps for calculating surface area: volume ratio

Answer 6

1. Calculate the surface area
2. Calculate volume
3. Calculate (surface area/volume) to work out every unit of surface area per unit of volume
4. Convert into a ratio