Component: Maintaining a Balance

Question 1

Section I Question 1 - 2001 HSC

Advantage of a desert animal producing very concentrated urine

Question 2

Section I Question 2 - 2002 HSC

Homeostatic response produced by a sudden and prolonged decrease in ambient temperature

Question 2

Section I Question 2 - 2001 HSC

Role of ADH (vasopressin)

Question 3

Section I Question 3 - 2002 HSC

Conclusion drawn from a graph of different species of bacteria and their reproductive rates at different temperatures

Question 3

Section I Question 3 - 2001 HSC

Missing element in a flowchart representing homeostasis in an endotherm

Question 4

Section I Question 4 - 2010 HSC

Comparison between urine of marine and freshwater fish

Question 4

Section I Question 4 - 2001 HSC

Most appropriate investigation to determine the effect of pH on the activity of an enzyme

Question 5

Section I Question 5 - 2001 HSC

Explanation of why boiling preserves the sweet taste of corn kernels

Question 6

Section I Question 6 - 2010 HSC

Mechanism that triggers a response to return salt concentration of interstitial fluids to a set value

Question 6

Section I Question 6 - 2002 HSC

Reason why waste removal is necessary for metabolic activity to continue in cells

Question 7

Section I Question 7 - 2002 HSC

Identification of correct information in a table showing concentration of urine for different organisms

Question 8

Section I Question 8 - 2010 HSC

Changes in concentrations of glucose, urea and protein as fluid moves through a nephron

Question 9

Section I Question 9 - 2010 HSC

Conclusion drawn from graphs showing experimental results

Question 10

Section I Question 10 - 2010 HSC

Application of experimental results to the acidity of blood as it circulates in the body

Question 12

Section I Question 12 - 2010 HSC

Method of transportation of lipids in mammalian blood

Question 16-18

Section I Question 16-18 - 2001 HSC

16. Validity of survey about genetically modified food. 17. Relationship between a structural feature and the function of an artery. 18. Products extracted from donated blood and reason for development of artificial blood.

Question 19-21

Section I Question 19-21 - 2001 HSC

19. Procedure followed in a first-hand investion, including safe work practices. 20. Table showing responses of an ectothermic and an endothermic animal to temperature changes. 21. Contribution of two scientists from a list to the understanding of the chromosomal nature of inheritance.

Question 25

Section I Question 25 - 2010 HSC

(a) Justify equipment or resources used in a first-hand investigation of a longitudinal section of xylem tissue. (b) Draw a diagram to represent a longitudinal section of xylem tissue and label one characteristic feature.

Question 29

Section II Question 29 - 2010 HSC

(a) Using source material provided, identify responses of plants to temperature change. (b) Evaluate relevance and reliability of each source of information.