5. Thiamin is required for a number of enzymes involved in energy transformation. List at least two enzymes & how these are related to energy transformation.

30. Where is niacin primarily absorbed? What are the side effects of large doses of niacin?

Experimental Review

Below are five hypothetical experimental designs. Your job as a reviewer is to pick one of the experiments and write a detailed summary of what is wrong with the proposed study.

Your review should use vocabulary words that have been discussed in class and address the following questions.

Is the study feasible? Will it actually be possible to conduct the proposed study in a controlled manner that produces meaningful data? If there is more than one variable changing simultaneously, no controls, or no replication, then the study is unlikely to produce meaningful data. If there is no way to monitor an experiment in the environment, or no way to conduct the experiment in a controlled environment, like a laboratory, then the experiment is unlikely feasible.

Can you tell from the text if the experiment is designed to be conducted by performing treatments, or by analyzing observational data about a species and its habitat?

Is there a testable hypothesis? Is the study set up so that it will be possible to measure the effects in a quantifiable way? What will be measured? Is there a control group and a treatment group? Or, an independent variable like temperature, and a dependent variable like germination time?

Could you graph the results of this experiment? If so, how would you do it? A column chart to show treatments and controls? A scatter plot or a line graph to look at how changes in the independent variable affect the dependent variable?

Create a post on the discussion board by clicking on "Click to Launch" above.

1. Experiments to Review

1. Climate Change Effects on Marine Iguana Mortality

Hypothesis: If the water temperature in the Galapagos Islands changed from being hot (around 77 degrees) to cold (under 70 degrees), then the mortality rate of Marine Iguanas will increase.

Variables: The independent variable is the temperature of the water that the Marine Iguanas live in. The dependent variable is the mortality rate of the Marine Iguanas. The mortality rate of the Marine Iguanas at the average water temperatures of their habitat.

Experimental Treatments: Iguana Group 1 will be water temperatures and marine iguana mortality rates before 1998. Iguana Group 2 will be water temperatures marine iguana mortality rates after 1998

Prediction:By comparting the average water temperatures with the mortality rates every year before the sudden drop in the iguana population and after a trend will be able to be seen. If the water temperature is truly to blame for the mortality rate increase the water temperature will decrease as the population of Iguanas decreases. The control group is intended to show the average number of Iguanas that die due to other causes.

2. Volcanic Ash Impacts Marine Iguana Longevity

Hypothesis: There are several volcanoes between both the Isabela, and Femandina islands which make this the obvious culprit for the extreme rise in mortality in Marine Iguanas.

Variables: The independent variable is the number of volcanic eruptions per year. The dependent variables are the change in pH of the water in the marine iguanas’ habitat, and the mortality rate of the iguanas.

Experimental Treatments: Iguana Group 1 will live on an island with multiple volcanic eruptions each year. Iguana Group 2 will live on an island with no volcanic eruptions.

Prediction: The group of iguanas living on the island with no eruptions will have longer life spans because the pH of the water will not be altered by the large number of volcanic eruptions.

A proposed new project has projected sales of $121,000, costs of $55,000, and depreciation of $12,400. The tax rate is 34 percent. Calculate operating cash flow using the four different approaches.

EBIT + Depreciation - Taxes?

Top-down?

Tax-shield?

Bottom-up?

The Elkmont Corporation needs to raise $51.6 million to finance its expansion into new markets. The company will sell new shares of equity via a general cash offering to raise the needed funds. The offer price is $32 per share and the company❝s underwriters charge a spread of 7 percent. The SEC filing fee and associated administrative expenses of the offering are $1,456,000. (Enter your answer as directed, but do not round intermediate calculations.) Required: How many shares need to be sold?

How to find amino acid in using BLAST program?

The density of HCN is ________ g/L at STP. 1.21 329 605 0.829 2.21

what are the possible interferences for biuret and bradford assays ? Provie two examples for each assay

The orr company sells only one product called a bobb, the company is in the process of preparing its selling and adminstrative expense budget for the last half of the year. the following budget data are available.

All of these expenses (except depreciation ) are paid in cash in the month they are incurred.

1. If the company has budgeted to sell 30 000 Bobbs in august, then the total budgeted selling and adminstrative expenses per unit sold for august is how much?

2. If the company has budgeted to sell 26 000 Bobbs in November , then the total budgeted variable selling and adminstrative expenses in November will be how much?

3. If the company has budgeted to sell 28 00 Bobbs in september , then the total budgeted fixed selling and adminstartive expenses for september is how much?

4. if the budgeted cash disbursements for selling and adminstrative expenses for October total R 160 500, then how many bobbs does the company plan to sell in October?

Your firm is contemplating the purchase of a new $590,000 computer-based order entry system. The system will be depreciated straight-line to zero over its five-year life. It will be worth $62,000 at the end of that time. You will be able to reduce working capital by $77,000 (this is a one-time reduction). The tax rate is 34 percent and the required return on the project is 14 percent. If the pretax cost savings are $202,000 per year, what is the NPV of this project? (Do not round intermediate calculations and round your final answer to 2 decimal places. (e.g., 32.16))

NPV $_______

Will you accept or reject the project?_________

If the pretax cost savings are $152,000 per year, what is the NPV of this project? (Negative amount should be indicated by a minus sign. Do not round intermediate calculations and round your final answer to 2 decimal places. (e.g., 32.16))

NPV $_________

Will you accept or reject the project?___________

At what level of pretax cost savings would you be indifferent between accepting the project and not accepting it? (Do not round intermediate calculations and round your final answer to 2 decimal places. (e.g., 32.16))

Cost savings $_________