Surface area to volume ratio

Question 1

give the equation for the surface area of a cube

Answer 1

area of a side x 6

Question 2

why does volume affect the rate of of gas production or use?

Answer 2

bigger volume means more cells and therefore more respiration
increased use of oxygen and production of carbon dioxide

Question 3

what does the surface area of volume ration of an organism determine?

Answer 3

how efficient an organism or cell will be at gas exchange

Question 4

give the equation of the volume of a cube

Answer 4

length x height x width

Question 5

how do u express surface area to volume ratio?

Answer 5

SA:Vol

Question 6

describe the relationship between size and SA:Vol ratio

Answer 6

negative correlation

as size increases SA:Vol ratio decreases

Question 7

what is meant by metabolic rate ?

Answer 7

rate at which chemical reactions in the body occur

Question 8

why do small animals need a higher metabolic rate?

Answer 8

they have a large SA:Vol ratio

so they need a higher metabolic rate to repire faster and replace the lost heat