Discuss the contribution of two scientists to the field of genetics.  Include their work, experiments and the significance of their work to our understanding of genetics. (A /7, C /3)

Antidepressants work on the CNS by affecting serotonin levels

Which of the following statements about hormones is incorrect?

Discuss how homeostasis may be altered in order to enhance performance.  Explain what performance enhancers are and why they are a concern. (A /7, C /3)

In the summer, leaves are green because chlorophyll pigments

The processing of the primary transcript involves

Name the parts identified in the diagram (8 marks)   1. _______ 2. _______ 4. _______ 6. _______ 8. _______ 9. _______ 10. ______ 11. ______

As a result of the light reactions, ___________ is(are) available to provide energy for ____________

Which of the following represents a biochemical crossroads for glucose oxidation,      fatty acid catabolism, and the catabolism of some amino acids?

Which of the following is NOT related to ribosomal activity?