Resource Image

Sizes of Organisms: The Surface Area to Volume Ratio

Author(s): Lou Gross1, Monica Beals1, Susan Harrell1

University of Tennessee Knoxville

1419 total view(s), 349 download(s)

0 comment(s) (Post a comment)

Summary:
This module introduces surface area-volume ratio in the context of understanding the limits or constraints on organism size. It is intended for an introductory biology audience.

Licensed under CC Attribution-ShareAlike 4.0 International according to these terms

Version 1.0 - published on 15 Feb 2019 doi:10.25334/Q44J03 - cite this

Description

This activity maps to the OpenStax biology textbook, 30.6 Plant Sensory Systems and Responses

Student Introduction: Two- and three-dimensional parameters of organisms (i.e., surface area and volume) do not necessarily increase or decrease proportionally to increases or decreases in one-dimensional, or linear, parameters (i.e., length). For example, the greater the diameter of a single-celled organism, the less surface area it has relative to its volume. The surface area to volume ratio is a way of expressing the relationship between these parameters as an organism's size changes.

Cite this work

Researchers should cite this work as follows: