Biology Unit 5 - Effects of Climate Change 0.0 / 5 ? BiologyEcology, ecosystems and environmental biologyA2/A-levelEdexcel Created by: lauraking20Created on: 11-06-17 10:35 What can increasing temperatures cause? 1) Faster rate of enzyme activity 2) Affect life cycles 3) Affect development 4) Affect distribution 1 of 11 How will increased temps increase enzyme activity? More kinetic energy, molecules more faster, higher chance of collision 2 of 11 What happens if temp too high? Enzyme vibrates more, can break the bonds that holds the enzyme in shape, active site changes, substate cant fit = denatured 3 of 11 What is an organisms metabolism? All the chemical reactions that take place in cells in order to keep them alive 4 of 11 What are metabolic reactions controlled by? Enzymes 5 of 11 How can temperate affect the life cycle in plants? Optimum temp for photosynthesis & growth - so will grow faster 6 of 11 What could happen to wheat if temp too high? Temp too high = fewer grains & yields begin to fall 7 of 11 How many global warming affect distribution? E.g. birds may have shift north 8 of 11 What may global warming also have an effect on? 1) Rainfall patterns 2) Seasonal cycles 9 of 11 What may happen to rain? Some areas get more, some get less 10 of 11 How to work out q10? rate at higher temp / rate at lower temp 11 of 11
Comments
No comments have yet been made