Effects of climate change and predictions Quiz
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5 questions, one answer each
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1. A trend in temperature data is continued beyond the measured range to predict the future. This is called
- A. interpolation
- B. extrapolation
- C. randomisation
- D. validation
2. The rate of an enzyme-catalysed reaction is 0.8 units at 15 °C and 2.0 units at 25 °C. What is the Q10?
- A. 0.4
- B. 1.2
- C. 2.5
- D. 1.6
3. Why does an enzyme stop working at very high temperatures?
- A. The substrate is used up
- B. Hydrogen bonds break and the active site changes shape
- C. Peptide bonds are formed
- D. The enzyme has too little kinetic energy
4. Why is the initial rate used when comparing temperatures?
- A. It is the lowest rate
- B. Substrate concentration is highest and the enzyme has not denatured over time
- C. It gives the same result at all temperatures
- D. It does not need a stopwatch
5. Warmer springs cause insects to emerge earlier than the birds that eat them. What is this an example of?
- A. A mismatch in life-cycle timing
- B. Genetic drift
- C. A change in rainfall pattern
- D. Allopatric speciation