Component: Option - Communication

Question 28

Section II Question 28 - 2002 HSC

(a) Organ of Corti; wavelength, frequency and pitch of a sound; structures used by animals to produce sound. (b) Features of the cerebrum, cerebellum and medulla oblongta; regions of the brain involved in speech. (c) Graph of data and statement of relationship between variables; human eye's ability to focus on objects at different distances. (d) Structures and processes in the retina that transform light into electrochemical signals.

Question 29

Section II Question 29 - 2001 HSC

(a) Location and function of structures in the eye. (b) Collection and assessment of information on structures used by animals to produce sound. (c) Describe use of technology to overcome effects of cataracts. (d) Justify the procedure and conclusions of an investigation into the process of accommodation. (e) Evaluate the appropriateness of devices that assist people with hearing impairment.

Question 31

Section II Question 31 - 2010 HSC

(a) Contruct a table identifying structures used by insects, fish and mammals to detect vibrations. (b) Draw diagrams illustrating vocal folds for high and low pitched notes. (c) Explain the effect of location in the retina on the stucture of cones. Outline the role of rhodopsin in rods. (d) Explain causes for lack of action potentials in part of a mammal's brain. Outline how this condition could change behaviour. (e) Evaluate how understanding of the ear and eye has led to development of 3D images and surround sound systems.