This object is part two of a three part series of animations of aerobic cellular respiration. It is a basic animation of the tricarboxylic acid cycle (aka, Krebs Cycle). It is accurate and keeps track of carbon dioxide, ATP, NDH and FADH2 molecules.
There are no specific learning outcomes stated. However, the following outcomes apply:
Be able to explain the production of acetyl CoA and its role in the process
Be able to explain the production of carbon dioxide--disassembly of glucose into single carbon units
Be able to explain electron flow to NAD+
Accurately track inputs and outputs of this process
Target Student Population:
This site is appropriate for high school (especially AP classes) and lower division college students.
Prerequisite Knowledge or Skills:
The information at this site requires basic familiarity with mitochondria, aerobic cellular respiration, and oxidation/reduction reactions.
Type of Material:
This is an animation/tutorial.
This object could be used as part of an in-class presentation or out of class assignment/review.
This site requires a current Internet browser with the Shockwave plugin.
Evaluation and Observation
Inputs and outputs of the process accurately accounted for
The site is correct and visually appealing
Process broken down into easy to grasp, sequential stages
Molecular structures and enzymes not included for simplicity--easy for user to focus on the basics of the process
All parts of the process labeled correctly
Molecular structures and enzymes are not included for simplicity--however, this gives an overly simple view of the process
Understanding that the process is complex with multiple steps should be mentioned
Potential Effectiveness as a Teaching Tool
The site is easy to use and the text narration explains the animation very well
Animations are great ways for students to see the connections between different events in a process; this learning object does that very well
The object maintains an accounting of energy inputs and all sources of energy outputs through the process
Would be effective in a guided explanation; students can return to animation as needed
Would be effective as either an initial explanation or a review.
This learning object requires some additional information before viewing - although it does flow well with the other animations at the site
Ease of Use for Both Students and Faculty
The site is very easy to use; steps are well-explained
Student needs to simply click on each stage to view
Each stage can be viewed repeatedly as needed
The learning object has a very clean appearance that focuses student on the topic
There were no concerns about ease of use at the time of this review
Other Issues and Comments:
Instructors will find this an excellent object for an overview of the process. In conjunction with the other parts it gives a complete overview with enough detail for beginning students. If you are at an upper college level course, it would be a good review but would need to be supplemented for complete understanding of the complexity.