Size and surface area to volume ratio Flashcards
1
Q
What do small objects have in terms of SA?
A
Relatively large surface areas
2
Q
What is SA important for?
A
Exchange
3
Q
What do cells or organisms need to exchange with their environment?
A
Materials and heat
4
Q
More chemical reactions happen every second in organisms with what in terms of volume?
Therefore more of what needs to be exchanged across the membrane of cells of larger organisms?
This becomes an ever-increasing problem with what?
A
In organisms with a larger volume than in ones with smaller volumes
More oxygen, nutrients, waste products and heat
With increasing volume
5
Q
A
