Essay A: This essay must be written in full sentences at the College level. If you have covered all parts, you will likely have 8-10 sentences or 2 significant paragraphs. Make sure you are detailed and define all relevant terms and explain their role in the process.   An action potential is a signal that causes a cell to increase its intracellular calcium. In this essay, explain where this intracellular calcium comes from in a skeletal muscle fiber and then follow the domino effect of this influx through the power stroke. Hint: be detailed about the activity of the thick and thin filaments and the process of phosphorylation. (HINT Assume the action potential has ALREADY been received and is moving down a membrane at peak voltage… you are dealing with what calcium does inside the cell.)  

A ribsome can read 4 codons at a time.

Which is NOT true about mitochondria?

Skeletal Muscle cells are in Go.

If the DNA triplets read CAT-GAC, the corresponding anticodons would read CAU-GAC.

Which is not true about embryonic differentiation of tissues?

Assume that you have collected the following information regarding your company: The company’s capital structure is 60 percent equity, 40 percent debt. The company’s forecasted capital budget for the coming year is $12,000,000. The before-tax yield to maturity on the company’s bonds is 7 percent and the bonds are selling at par value – you may ignore flotation costs. The company’s dividend next year is forecasted to be $1.25 a share. The company expects that its dividend will grow at a constant rate of 6 percent a year. The company’s stock price is $20. The company’s tax rate is 40 percent. The company anticipates that it will add $4,500,000 to its retained earnings account over the coming year, but that it will also need to raise new common stock over the year. Its investment bankers anticipate that the total flotation cost for new common stock will equal 12.50 percent of the amount issued (or price per share) — you may assume that the company accounts for flotation costs by adjusting the component cost of capital (i.e., it determines a price that it will net and then uses a DCF approach to determine rs).  Determine what the company’s weighted-average cost of capital for the entire $12,000 to be raised. Answer in decimal format, to 4-decimal places.  For example, if your answer is 12.334%, enter “0.1233”.

Company A’s stock has an estimated beta of 1.4, and its required rate of return is 13 percent, and the risk-free rate is 6 percent.  Company B’s stock has a beta of 0.8.  Determine the required rate of return on Company B’s stock.

The magnitude of the acceleration of an object moving in a circle at constant speed is

The heating of a room by a fire in a fireplace is chiefly due to