For the IB Biology Course.

2. ReceptorStimulusExamplesMechanoreceptorPressureTextureVibrationTouch, pain and tension in skinTouch receptors in skinInner ear for hearing and balance CITATION Ste104 1033 (1)ThermoreceptorChemoreceptorPhotoreceptor

3. TOK link – To what extent is our perception of the world limited by our receptors?

4. Research some examples of animals with different ranges of stimuli – or even completely different stimuli altogether!

5. Label the structures of the human eye with their names and functions:

6. Label the section of the retina below:

7. Annotate the diagram below to outline how light stimulus is received by the photoreceptor and converted to an action potential:

8. Compare rod and cone cells:

9. Rod cellsCone cellsLight brightnessDiversity of cellsWavelength sensitivityImpulse: neuron ratiodistribution

10. Explain how visual stimuli are processed in the eye and brain, with reference to the following stages (you can draw or find images to help, if you wish):

11. Image focusing and inversion in the cornea and retina

12. Visual fields

13. Contralateral processing and the role of the chiasma

14. The role and location of the visual cortex in the brain

15. Edge enhancement and ‘filling in’ of the blind spot

17. What are risk factors in hearing and vision loss and how can they be mitigated?

18. Research the use of stem cells and gene therapy in restoring vision to those who have been blinded or who have blindness due to genetic factors. Works Cited BIBLIOGRAPHY 1. Taylor, Stephen. Perception of Stimuli (presentation). Science Video Resources. [Online] Wordpress, 2010. http://sciencevideos.wordpress.com/options/option-e-neurobiology-and-behaviour/e2-perception-of-stimuli/.2. Allott, Andrew. IB Study Guide: Biology for the IB Diploma. s.l. : Oxford University Press, 2007. 978-0-19-915143-1.3. Mindorff, D and Allott, A. Biology Course Companion. Oxford : Oxford University Press, 2007. 978-099151240.4. Clegg, CJ. Biology for the IB Diploma. London : Hodder Murray, 2007. 978-0340926529.5. Campbell N., Reece J., Taylor M., Simon. E. Biology Concepts and Connections. San Fransisco : Pearson Benjamin Cummings, 2006. 0-8053-7160-5.6. Burrell, John. Click4Biology. [Online] 2010. http://click4biology.info/.7. IBO. Biology Subject Guide. [Online] 2007. http://xmltwo.ibo.org/publications/migrated/production-app2.ibo.org/publication/7/part/2/chapter/1.html.<br />Self Assessment:<br />Essential BiologyAssessmentCriterionComplete (2)Partially complete (1)SelfMrTPresentation & OrganisationNAComplete and neat. All command terms highlighted, tables and diagrams well presented. Academic HonestyNASources cited using the CSE (ISO 690 numerical) method, with Works Cited section complete and correct. Objective 1 understandingAll answers for the following command terms correct:Most answers for the following command terms correct:Define Draw Label List Measure StateObjective 2 understandingAll answers for the following command terms correct:Most answers for the following command terms correct:Annotate Apply Calculate Describe Distinguish Estimate Identify OutlineObjective3understandingAll answers for the following command terms correct:Most answers for the following command terms correct:Analyse Comment Compare Construct Deduce Derive Design Determine DiscussEvaluate Explain Predict Show Solve Sketch SuggestLogic, notation, mathematical workingNAAnswers are presented in a logical and concise manner. SI units used most times, with correct unit symbols and definitions of terms. All mathematical working shown.Further researchNAEvidence is apparent of research and reading beyond the textbook and presentations to find correct answers to challenging questions. If any questions are unanswered, this criterion scores zero. Total (max 10):<br />