Sample interview questions: Can you discuss any experience you have in studying the effects of temperature on biological systems?
Sample answer:
Biophysicist’s Response:
As a Biophysicist, I have extensive experience in studying and analyzing the effects of temperature on various biological systems. Throughout my research and professional career, I have gained valuable insights into the intricate relationship between temperature and numerous biological processes and systems.
Cellular Processes:
- Enzyme activity: Temperature significantly impacts the activity of biological molecules, particularly proteins such as Enzymes. As temperature increases, the rate of enzymatic reactions typically increases until an optimal temperature is reached. Beyond this point, further temperature increases can lead to protein denaturation and decreased activity.
- Membrane fluidity: Temperature also influences the fluidity of cell membranes. At low temperatures, membranes become more rigid, while higher temperatures increase membrane fluidity. This affects various membrane-associated processes, such as protein-lipid interactions, ion transport, and cell motility.
- Metabolic rate: Temperature has a profound effect on the overall rate of Cellular Respiration. In general, higher temperatures lead to increased rates of biochemical reactions and hence higher Metabolic Rate. However, it is important to consider the specific temperature range that supports optimal function for each biological system.
Physiological Systems:
- Homeothermy vs. Poikilothermy: Different animal species have different strategies for regulating body temperature. Homeotherms, such as mammals and birds, maintain a constant body temperature… Read full answer