A disadvantage of this system is the by product which is lactic acid which makes the muscles sore. A positive of this energy system is also that it can be done both aerobically and anaerobically. After about five minutes of exercise, Aerobic Glycolysis is the dominant energy system. Aerobic Glycolysis produces energy by breaking down muscle and liver glycogen stores with oxygen present. Because oxygen is present when this system is in use, there is no build up of lactic acid.
Which gene(s) were expressed less in Grandpa Joe’s lung cells? How do you know? * Genes three and six were expressed a lot less since they were not being expressed in the wet lab test and there ratios also were very low. The ratio of gene two was equal to one which means it’s not affected. Were there any genes not expressed in either cell type?
2. In Experiment 1, explain why the membrane potential between the axon hillock and axon either changed or did not change with subthreshold stimulus. Differences of 1.0 mV or less are not significant Subthreshold is a change as it hasn’t reached the action potential level. 3. In Experiment 2, explain why the membrane potential between the axon hillock and axon either changed or did not change with threshold stimulus.
The confidence intervals do overlap in this experiment; therefore the smaller light intensities does not have a signficant effect on the movment of Acheta domesticus as measured in 30 seconds. Thus, we fail to reject Ho, indicating that there is insufficent evidence to say that light intensity does affect the rate of movment as measured in 30 seconds of the Acheta domesticus. The age, size, and number of limbs of the crickets may have affected our resluts as this could have slowed or speed up their rate of
Brown: Do the benefits of lowering cholesterol outweigh the risks of taking the medication? Physician: Yes Mr. Brown I believe they do. As of right now your cholesterol level is not too high. However, your LDL is very high and your HDL is very low. It is only a matter of time until your cholesterol is raising towards high risk heart disease levels.
Answer: False Difficulty: Med LO: 2 Page: 414 T F 7. There is no relationship between risk and safety. Answer: False Difficulty: Med LO: 2 Page: 412 T F 8. The potential return of any investment should be directly related to the risk that the investor assumes. Answer: True Difficulty: Med LO: 2 Page: 413 T F 9.
b. potential independent variables that are held constant. c. measured by the researcher. d. probable behavioral causes. 6. One reason a valid experiment may produce null results is a. the range of levels in the independent variable was insufficient to show an effect.
Porter’s evaluation of five forces on current model (Appendix1A) suggests a high – medium range of 5 forces. Thus we eliminate the 3rd option (stay same) as the profitability in the future can be low and the model is not sustainable. Although environmentally this option is the most viable it does not satisfy the sustainability and stakeholder’s analysis. I needed to find a solution that would lower the five forces for an efficient functioning. A stake holder analysis of the given options gave me a better insight (Appendix 1B) As per the stakeholder analysis, Niche skills (move smaller) sounds favorable for customers, managers and local community while shareholders find it less risky and fuel prices does not impact it.
Therefore it is thought that life stress and negative emotions can reduce the effectiveness of the immune system. A criticism with this study is that a cause and effect can’t be established because there was no direct manipulation of the independent variable i.e. the stress index. This was a questionnaire so demand characteristics were present meaning that they could have not been telling the truth (social desirability) or have forgotten. Also in this study there wasn’t a direct way of measuring immune function and is only an indirect study.
As intensity during exercise increases so does SV. SV does have a maximum volume this can vary due to fitness level, ventricle elasticity and the blood to return to the heart. The biggest change in SV occurs from moderate to intense exercise. An average untrained athlete would have a SV 60-80ml/beat, and a trained athlete 160ml/beat. The higher the stroke volume the