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Heterotrophic organisms acquire energy and nutrients
by ingesting other organisms. This "food" is then broken
into smaller usable units through a process of digestion. Following
digestion energy rich molecules and other essential organic molecules
must be transported to every cell in the organism. This is accomplished
through the use of a transport system which, in higher organisms,
is a cardiovascular system. Finally, energy rich molecules can
only efficiently transfer energy in the presence of oxygen, and
hence, a respiratory system is required so that every cell can
receive oxygen. This unit explores the digestive, cardiovascular,
and respiratory systems in higher organisms, without which, the
transfer of energy, and therefore all metabolic processes, could
not occur.
Lecture
Chapter 41 Lecture 1: Digestion Overview & Protein Digestion (print) (audio 28:10)
Chapter 41 Lecture 2: Lipid Digestion (print) (audio 12:54)
Chapter 41 Lecture 3: How To Evaluate Competing Scientific Claims (print) (audio 8:47)
Chapter 42 Lecture 1: Circulatory System Lecture 1 (print) (audio 31:28)
Chapter 42 Lecture 2: Circulatory System Lecture 2 (print) (audio 34:41)
Chapter 42 Lecture 3: Respiratory System Lecture 3 (print) (audio 34:50)
Homework
Chapter 40 & 41 Free Response Questions
Chapter 40 Worksheet (html)
Chapter 42 Free Response Questions
Digestion Challenge (extra credit)
"What If Its All Been A Big Fat Lie?" Assignment (extra credit)
"What If Its All Been A Big Fat Lie?" Reading (pdf version)(extra credit)
Never Gonna Give You Up (song parody) (lyrics)
Lab
Diet Analysis Lab
Diet Analysis Write-up
Animation
Cardiac Cycle
Test Prep
Chapter 41 Quiz Hints #1
Chapter 41 Quiz Hints #2
Chapters 40 & 41 Review: Breakdown (lyrics) (audio)
(Be able to define the words in bold, and explain their role in digestion)
Chapters 40 & 41 Test Hints
Chapter 42 Quiz Hints #1
Chapter 42 Test Hints
Web Resources
"Our National Eating Disorder" (A response, of sorts, to "Big Fat Lie" from the same pages of the NY Times) (pdf version)
Good Calories, Bad Calories Debate (From the Tierney Lab at the NY Times website)
Diet and Fat: A Severe Case of Mistaken Consensus By John Tierney
Good Calories, Bad Calories- Brief Synopsis
The Value of Omega 3 Fatty Acids(?!)
Calorie Restriction Article (NY Times 10/31/06)
Red Blood Cells (Funny YouTube Video)
Web MD- Inside Video of the Heart
Calorie Restriction Article
Pumps Your Blood
Calorie Restriction
BMI Calculator
Diabetes Article
The Stanford 25 |
