Why is it ideal for organisms to have a larger surface area to volume ratio?

Watch this thread
AKRYL
Badges: 9
Rep:
? You'll earn badges for being active around the site. Rep gems come when your posts are rated by other community members.
#1
Report Thread starter 6 years ago
#1
Why is it ideal for organisms to have a larger surface area to volume ratio?
0
reply
Mayhem™
Badges: 19
Rep:
? You'll earn badges for being active around the site. Rep gems come when your posts are rated by other community members.
#2
Report 6 years ago
#2
Wouldn't a larger surface area allow a greater rate of reaction? (e.g. absorption of energy or diffusion).
0
reply
Jamdroid
Badges: 2
Rep:
? You'll earn badges for being active around the site. Rep gems come when your posts are rated by other community members.
#3
Report 6 years ago
#3
Diffusion / Photosynthesis, to absorb enough (or more) energy than it needs to survive. Higher volume means more energy is required.
0
reply
username2151383
Badges: 17
Rep:
? You'll earn badges for being active around the site. Rep gems come when your posts are rated by other community members.
#4
Report 6 years ago
#4
for things like camels it's good bc they can lose a lot of heat through their flabby bits
it's not good for things like polar bears
0
reply
Christina1999H
Badges: 1
Rep:
? You'll earn badges for being active around the site. Rep gems come when your posts are rated by other community members.
#5
Report 6 years ago
#5
(Original post by AKRYL)
Why is it ideal for organisms to have a larger surface area to volume ratio?
Depends on the organism!
For unicellular organisms, the larger surface area to volume ratio which they have is essential as diffusion and osmosis is the only way nutrients and molecules can enter the cell - which allow the cell to live essentially!

Multicellular organisms tend to have a smaller surface area to volume ratio because they don't depend on active transport, diffusion or osmosis to live as much.

Hope this helps
1
reply
The Diplomat.
Badges: 3
Rep:
? You'll earn badges for being active around the site. Rep gems come when your posts are rated by other community members.
#6
Report 6 years ago
#6
so they can absorb stuff quicker via diffusion/osmosis etc
0
reply
AKRYL
Badges: 9
Rep:
? You'll earn badges for being active around the site. Rep gems come when your posts are rated by other community members.
#7
Report Thread starter 6 years ago
#7
(Original post by The Diplomat.)
so they can absorb stuff quicker via diffusion/osmosis etc
Why is it important to have a high rate of diffusion?
0
reply
wackojacko98
Badges: 1
Rep:
? You'll earn badges for being active around the site. Rep gems come when your posts are rated by other community members.
#8
Report 6 years ago
#8
It is important to have a high rate of diffusion to match the energy needs of the organism.
0
reply
username1221160
Badges: 19
Rep:
? You'll earn badges for being active around the site. Rep gems come when your posts are rated by other community members.
#9
Report 6 years ago
#9
(Original post by Christina1999H)
Depends on the organism!
For unicellular organisms, the larger surface area to volume ratio which they have is essential as diffusion and osmosis is the only way nutrients and molecules can enter the cell - which allow the cell to live essentially!

Multicellular organisms tend to have a smaller surface area to volume ratio because they don't depend on active transport, diffusion or osmosis to live as much.

Hope this helps
This. It entirely depends on the organism, otherwise we would all look like flat fish.


There are also other factors, such as thermoregulation, metabolic rate, etc. and the particular environment it is adapted to.
0
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Back
to top
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

How did your AQA A-level Psychology Paper 1 go?

Loved the paper - Feeling positive (273)
42%
The paper was reasonable (269)
41.38%
Not feeling great about that exam... (60)
9.23%
It was TERRIBLE (48)
7.38%

Watched Threads

View All