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The sensitiveness of an organelle to a particular stimuli is based on the fact that how it reacts in terms of the substrate intake. In this case, stimulus is temperature and substrate is Oxygen. The graph is a parabolic graph. The maximum effect on mitochondrion seems to appear between 30-40 degrees C where enormous change in the O2 usage is seen as is evident by steepness of graph.
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- The pesticide DDT was widely used in the 1940s as a method of insect control. In the late 1950s the first DDT-resistant mosquitoes were discovered, and eventually DDT-resistant mosquitoes were found globally. When DDT is used now, the development of DDT resistance in mosquito populations occurs in months rather than years.Which of the following best explains the observations concerning DDT resistance in mosquitoes?* nd 2 chool The proportion of DDT-resistant mosquitoes in a population remains constant due to O the metabolic costs of DDT utilization DDT is a chemical signal that delays normal reproductive cycles in many mosquito populations. Natural selection favors DDT-resistant mosquitoes that are already present in a population when DDT exposure occurs. Competition for limited resources causes mosquitoes to migrate to geographical areas that have richer supplies of DDT. A population of 1.492 finches is intróduced to a rainforest. Over the next year, the finches show a death rate of…2:11 ← AP_5069_L04_DiffusionAndOsmosis (1).docx A If you've got a name, you've got a logo. Adobe Students save over 60% on Adobe Creative Cloud. Learn more JB BATES PAGE 5/... A Post-Lab Questions 1. Why is it necessary to have positive and negative controls in this experiment? ON 5G 2. Draw a diagram of the experimental setup. Use arrows to depict the movement of each substance in the dialysis bag and the beaker. Which substance(s) crossed the dialysis membrane? Support your response with data- based evidence. raDensity-dependent inhibition" is explained by which of the following Oa. as cells become more numerous, they begin to squeere against each other, restricting their size and ability to produce control factors Ob as cells become more numerous, the amount of required growth factors and nutrients per cell becomes insufficient to allow for cel growth Oc as cells become more numerous, the protein kinases they produce begin to compete with each other, such that the proteins produced by on e cell essentially cancel those produced by its neighbor O d. as cells become more numerous, more and more of them enter the S phase of the cell cycle Oe as cells become more numerous, the level of waste products increases, eventually slowing down metabolism.
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