Study Guide:
Form & Function
Objectives:
Upon completion of this unit, you should be able to:
-
Describe what
is meant by a surface-to-volume ratio
-
Be able to
calculate the surface area, volume and s/v ratio for a square or rectangle
-
Describe the
biological significance of s/v ratios.
-
Describe the
relationship of form and function
-
Explain how
physical laws constrain animal form.
-
Explain how the
size and shape of an animal's and plant's body affect its interactions with
the environment.
Readings/Study Materials:
- parts of Chapter 40
-
online form and function notes
- Surface/volume homework in Moodle
- Presidential Notes - provided in
class
- Bonner (2006) article - available
in public folder; supplemental
Definitions: can
you use the following terms conversationally?
- anatomy
- form
- function
- morphology
- physiology
- surface area
|
- volume
- surface/volume ratio
- Reynold's number
(not on exam)
- generation time
(not on exam)
- life span (not
on exam)
|
Questions:
- be able to answer questions such as
those in the homework assignment.
- list the hierarchy of biological
organization. Can you give an example of each level
- identify two major themes that will
run through our course this year.
- define physiology, morphology,
anatomy
- what does it mean that form and
function is an evolutionary compromise or trade-off?
- be able to calculate the surface
area, volume and surface/volume ratio of a cube
- explain what it means that the
surface area increases by the square of the linear dimension and volume
increases by the cube.
- why are surface/volume ratios
important. Provide some examples.
- How does motility relate to
surface/volume ratio?
- what are some form changes that
accompany getting larger?
- What is the relationship between
body size and basal metabolic rate. Explain why it exists.
- What determines the upper size
limit for an animal?
- What determines the lower size
limit?
-
Explain why leaves are broad and flat.
-
According the Guinness Book of World Records the tallest living human
female is 7 feet 7 � inches tall. Using our assumption that a 5 foot woman
weighs 110 pounds, how much do you predict this woman weighs? __________.
(note: her actual weight = 462 pounds) Show your work.
-
Why do elephants have large, flat ears?
-
Explain why roots have "hairs."
-
Explain why the shape of animals is basically "spherical", whereas plants
and fungi are "filamentous".
-
Explain why small animals have a higher metabolic rate than large animals.
-
Explain why shrews are voracious feeders.
-
Explain why cats can fall off tall buildings and survive. Why do people
splat?
-
Explain the advantages/disadvantages of block vs. cube ice.
-
Describe the scientific inaccuracy in the episode of Goldilocks and the
porridge.
-
Explain why lungs, gills and intestines have the shape they do.
-
Medieval churches were often built in the shape of a crucifix. Explain why.
-
The earth is geologically active (has a molten core) but the moon is
apparently no longer geologically active. Explain why using S/V ratios.
-
Why are there few small animals in the arctic?
-
Explain how S/V ratios relate to the form of plants that have evolved in
mesic, xeric and hydric environments.
-
Explain why the cells of the spongy layer of a plant leaf are irregularly
shaped.
Last updated: January 12, 2009
� Copyright by SG Saupe