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Biochemistry Practice Test Questions: Biosignalling
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A biosignal is any signal in living beings that can be continually measured and monitored.

Topics covered include: Molecular Mechanisms of Signal Transduction, Gated Ion Channels, Receptor Enzymes, G Protein-Coupled Receptors and Second Messengers, Multivalent Scaffold Proteins and Membrane Rafts, Signaling in Microorganisms and Plants, Sensory Transduction in Vision, Olfaction and Gustation, Regulation of Transcription by Steroid Hormones, Regulation of the Cell Cycle by Protein Kinases, & Oncogenes, Tumor Suppressor Genes.

Biochemistry Practice Test Questions: Biosignalling
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25 Questions

1. Which out of the following is not involved in signal transduction by β-adrenergic receptor pathway?
2. Transcription factor in plants is _________
3. Which of the following is involved in proline rich motif binding?
4. Which out of the following statements is true about gene regulation in bacteria?
5. cAMP and cGMP are derived from ____________
6. Which of the following is involved in extrinsic cell death pathway?
7. A hormone or ligand can be considered as ___________
8. Which of the following is involved in phospho-tyrosine binding?
9. What is Ubiquitin?
10. Ras protein is a ____________
11. Vision, olfaction and gustation employ _________
12. Which of the following statements is false about a ligand-gated ion channel receptor?
13. Which of the following statements is not true about olfactory neurons?
14. GPCR is comprised of ___________
15. Which of the following serves as a neurotransmitter in adrenergic neurons?
16. Negative regulator of ethylene response is _________
17. Proto-oncogenes can be transformed to oncogenes by all of the following mechanisms except _____________
18. The G protein involved in visual signal transduction is _________
19. Signal molecule fits the binding site on its complementary receptor called as _____________
20. The information which is represented by a signal is detected by specific receptors and converted to a cellular response; this conversion is called _____________
21. Which of the following catalyzes the cutting of PIP2 into 2 moles of IP3 and diacylglycerol in cell signaling?
22. ERF1is a _________
23. Voltage regulation means ____________
24. Plasma membrane protein predicted to have seen 7 transmembrane helices segment binds __________
25. Which of the following is not a G-protein coupled receptor?